Articles | Volume 18, issue 8
https://doi.org/10.5194/bg-18-2539-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-2539-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Apr 2021
Research article |
| 22 Apr 2021
| 22 Apr 2021
Impact of bottom trawling on sediment biogeochemistry: a modelling approach
Emil De Borger
CORRESPONDING AUTHOR
Department of Biology, Marine Biology Research
Group, Ghent University, Krijgslaan 281/S8, 9000 Ghent, Belgium
Department of
Estuarine and Delta Systems, Royal Netherlands Institute of Sea Research (NIOZ), Utrecht University, Korringaweg 7, P.O. Box
140, 4401 NT Yerseke, the Netherlands
Justin Tiano
Department of
Estuarine and Delta Systems, Royal Netherlands Institute of Sea Research (NIOZ), Utrecht University, Korringaweg 7, P.O. Box
140, 4401 NT Yerseke, the Netherlands
Department of Biology, Marine Biology Research
Group, Ghent University, Krijgslaan 281/S8, 9000 Ghent, Belgium
Ulrike Braeckman
Department of Biology, Marine Biology Research
Group, Ghent University, Krijgslaan 281/S8, 9000 Ghent, Belgium
Adriaan D. Rijnsdorp
Wageningen Marine Research, Wageningen University and Research,
IJmuiden, the Netherlands
Karline Soetaert
Department of
Estuarine and Delta Systems, Royal Netherlands Institute of Sea Research (NIOZ), Utrecht University, Korringaweg 7, P.O. Box
140, 4401 NT Yerseke, the Netherlands
Department of Biology, Marine Biology Research
Group, Ghent University, Krijgslaan 281/S8, 9000 Ghent, Belgium
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By applying a novel technique to quantify organism-induced sediment–water column fluid exchange (bioirrigation), we show that organisms in subtidal (permanently submerged) areas have similar bioirrigation rates as those that inhabit intertidal areas (not permanently submerged), but organisms in the latter irrigate deeper burrows in this study. Our results expand on traditional methods to quantify bioirrigation rates and broaden the pool of field measurements of bioirrigation rates.
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Biogeosciences, 18, 6501–6516, https://doi.org/10.5194/bg-18-6501-2021, https://doi.org/10.5194/bg-18-6501-2021, 2021
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Shells are biogenic particles that are widespread throughout natural sandy environments and can affect the bed roughness and seabed erodibility. As studies are presently lacking, we experimentally measured ripple formation and migration using natural sand with increasing volumes of shell material under unidirectional flow in a racetrack flume. We show that shells expedite the onset of sediment transport, reduce ripple dimensions and slow their migration rate.
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Biogeosciences, 15, 2587–2599, https://doi.org/10.5194/bg-15-2587-2018, https://doi.org/10.5194/bg-15-2587-2018, 2018
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Tom J. S. Cox, Justus E. E. van Beusekom, and Karline Soetaert
Biogeosciences, 14, 5271–5280, https://doi.org/10.5194/bg-14-5271-2017, https://doi.org/10.5194/bg-14-5271-2017, 2017
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H. Brenner, U. Braeckman, M. Le Guitton, and F. J. R. Meysman
Biogeosciences, 13, 841–863, https://doi.org/10.5194/bg-13-841-2016, https://doi.org/10.5194/bg-13-841-2016, 2016
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Alkalinity released from sediments of the southern North Sea can play an important role in the carbon cycle of the North Sea by lowering the pCO2 of the seawater and thus increasing the CO2 flux between the atmosphere and the water. However, not every single mole alkalinity generated in sediments leads to an additional CO2 uptake, as certain reactions in the water column can negate the respective alkalinity release.
L. Meire, D. H. Søgaard, J. Mortensen, F. J. R. Meysman, K. Soetaert, K. E. Arendt, T. Juul-Pedersen, M. E. Blicher, and S. Rysgaard
Biogeosciences, 12, 2347–2363, https://doi.org/10.5194/bg-12-2347-2015, https://doi.org/10.5194/bg-12-2347-2015, 2015
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The Greenland Ice Sheet releases large amounts of freshwater, which strongly influences the biogeochemistry of the adjacent fjord systems and continental shelves. Here we present seasonal observations of the carbonate system in the surface waters of a west Greenland tidewater outlet glacier fjord. Our data reveal a permanent undersaturation of CO2 in the surface layer of the entire fjord and adjacent shelf, creating a high annual uptake of 65gCm-2yr-1.
L. Pozzato, D. Van Oevelen, L. Moodley, K. Soetaert, and J. J. Middelburg
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Biogeosciences, 10, 2633–2653, https://doi.org/10.5194/bg-10-2633-2013, https://doi.org/10.5194/bg-10-2633-2013, 2013
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Biogeosciences, 10, 1425–1440, https://doi.org/10.5194/bg-10-1425-2013, https://doi.org/10.5194/bg-10-1425-2013, 2013
K. Soetaert, D. van Oevelen, and S. Sommer
Biogeosciences, 9, 5341–5352, https://doi.org/10.5194/bg-9-5341-2012, https://doi.org/10.5194/bg-9-5341-2012, 2012
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Joelle Habib, Caroline Ulses, Claude Estournel, Milad Fakhri, Patrick Marsaleix, Mireille Pujo-Pay, Marine Fourrier, Laurent Coppola, Alexandre Mignot, Laurent Mortier, and Pascal Conan
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The Rhodes Gyre, eastern Mediterranean Sea, is the main Levantine Intermediate Water formation site. In this study, we use a 3D physical–biogeochemical model to investigate the seasonal and interannual variability of organic carbon dynamics in the gyre. Our results show its autotrophic nature and its high interannual variability, with enhanced primary production, downward exports, and onward exports to the surrounding regions during years marked by intense heat losses and deep mixed layers.
Masihullah Hasanyar, Thomas Romary, Shuaitao Wang, and Nicolas Flipo
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The results of this study indicate that biodegradable dissolved organic matter is responsible for oxygen depletion at low flow during summer seasons when heterotrophic bacterial activity is so intense. Therefore, the dissolved organic matter must be well measured in the water monitoring networks in order to have more accurate water quality models. It also advocates for high-frequency data collection for better quantification of the uncertainties related to organic matter.
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We are among the first to quantify methane emissions from inland water system in the pan-Arctic. The total CH4 emissions are 36.46 Tg CH4 yr−1 during 2000–2015, of which wetlands and lakes were 21.69 Tg yr−1 and 14.76 Tg yr−1, respectively. By using two non-overlap area change datasets with land and lake models, our simulation avoids small lakes being counted twice as both lake and wetland, and it narrows the gap between two different methods used to quantify regional CH4 emissions.
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Biogeosciences, 20, 869–895, https://doi.org/10.5194/bg-20-869-2023, https://doi.org/10.5194/bg-20-869-2023, 2023
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Shuang Gao, Jörg Schwinger, Jerry Tjiputra, Ingo Bethke, Jens Hartmann, Emilio Mayorga, and Christoph Heinze
Biogeosciences, 20, 93–119, https://doi.org/10.5194/bg-20-93-2023, https://doi.org/10.5194/bg-20-93-2023, 2023
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We assess the impact of riverine nutrients and carbon (C) on projected marine primary production (PP) and C uptake using a fully coupled Earth system model. Riverine inputs alleviate nutrient limitation and thus lessen the projected PP decline by up to 0.7 Pg C yr−1 globally. The effect of increased riverine C may be larger than the effect of nutrient inputs in the future on the projected ocean C uptake, while in the historical period increased nutrient inputs are considered the largest driver.
Valeria Di Biagio, Stefano Salon, Laura Feudale, and Gianpiero Cossarini
Biogeosciences, 19, 5553–5574, https://doi.org/10.5194/bg-19-5553-2022, https://doi.org/10.5194/bg-19-5553-2022, 2022
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The amount of dissolved oxygen in the ocean is the result of interacting physical and biological processes. Oxygen vertical profiles show a subsurface maximum in a large part of the ocean. We used a numerical model to map this subsurface maximum in the Mediterranean Sea and to link local differences in its properties to the driving processes. This emerging feature can help the marine ecosystem functioning to be better understood, also under the impacts of climate change.
Michael R. Stukel, Moira Décima, and Michael R. Landry
Biogeosciences, 19, 3595–3624, https://doi.org/10.5194/bg-19-3595-2022, https://doi.org/10.5194/bg-19-3595-2022, 2022
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The biological carbon pump (BCP) transports carbon into the deep ocean, leading to long-term marine carbon sequestration. It is driven by many physical, chemical, and ecological processes. We developed a model of the BCP constrained using data from 11 cruises in 4 different ocean regions. Our results show that sinking particles and vertical mixing are more important than transport mediated by vertically migrating zooplankton. They also highlight the uncertainty in current estimates of the BCP.
Ginevra Rosati, Donata Canu, Paolo Lazzari, and Cosimo Solidoro
Biogeosciences, 19, 3663–3682, https://doi.org/10.5194/bg-19-3663-2022, https://doi.org/10.5194/bg-19-3663-2022, 2022
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Methylmercury (MeHg) is produced and bioaccumulated in marine food webs, posing concerns for human exposure through seafood consumption. We modeled and analyzed the fate of MeHg in the lower food web of the Mediterranean Sea. The modeled spatial–temporal distribution of plankton bioaccumulation differs from the distribution of MeHg in surface water. We also show that MeHg exposure concentrations in temperate waters can be lowered by winter convection, which is declining due to climate change.
Yanda Ou, Bin Li, and Z. George Xue
Biogeosciences, 19, 3575–3593, https://doi.org/10.5194/bg-19-3575-2022, https://doi.org/10.5194/bg-19-3575-2022, 2022
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Over the past decades, the Louisiana–Texas shelf has been suffering recurring hypoxia (dissolved oxygen < 2 mg L−1). We developed a novel prediction model using state-of-the-art statistical techniques based on physical and biogeochemical data provided by a numerical model. The model can capture both the magnitude and onset of the annual hypoxia events. This study also demonstrates that it is possible to use a global model forecast to predict regional ocean water quality.
Eva Ehrnsten, Oleg Pavlovitch Savchuk, and Bo Gustav Gustafsson
Biogeosciences, 19, 3337–3367, https://doi.org/10.5194/bg-19-3337-2022, https://doi.org/10.5194/bg-19-3337-2022, 2022
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We studied the effects of benthic fauna, animals living on or in the seafloor, on the biogeochemical cycles of carbon, nitrogen and phosphorus using a model of the Baltic Sea ecosystem. By eating and excreting, the animals transform a large part of organic matter sinking to the seafloor into inorganic forms, which fuel plankton blooms. Simultaneously, when they move around (bioturbate), phosphorus is bound in the sediments. This reduces nitrogen-fixing plankton blooms and oxygen depletion.
Brandon J. McNabb and Philippe D. Tortell
Biogeosciences, 19, 1705–1721, https://doi.org/10.5194/bg-19-1705-2022, https://doi.org/10.5194/bg-19-1705-2022, 2022
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The trace gas dimethyl sulfide (DMS) plays an important role in the ocean sulfur cycle and can also influence Earth’s climate. Our study used two statistical methods to predict surface ocean concentrations and rates of sea–air exchange of DMS in the northeast subarctic Pacific. Our results show improved predictive power over previous approaches and suggest that nutrient availability, light-dependent processes, and physical mixing may be important controls on DMS in this region.
Xi Wei, Josette Garnier, Vincent Thieu, Paul Passy, Romain Le Gendre, Gilles Billen, Maia Akopian, and Goulven Gildas Laruelle
Biogeosciences, 19, 931–955, https://doi.org/10.5194/bg-19-931-2022, https://doi.org/10.5194/bg-19-931-2022, 2022
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Estuaries are key reactive ecosystems along the land–ocean aquatic continuum and are often strongly impacted by anthropogenic activities. We calculated nutrient in and out fluxes by using a 1-D transient model for seven estuaries along the French Atlantic coast. Among these, large estuaries with high residence times showed higher retention rates than medium and small ones. All reveal coastal eutrophication due to the excess of diffused nitrogen from intensive agricultural river basins.
Krysten Rutherford, Katja Fennel, Dariia Atamanchuk, Douglas Wallace, and Helmuth Thomas
Biogeosciences, 18, 6271–6286, https://doi.org/10.5194/bg-18-6271-2021, https://doi.org/10.5194/bg-18-6271-2021, 2021
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Using a regional model of the northwestern North Atlantic shelves in combination with a surface water time series and repeat transect observations, we investigate surface CO2 variability on the Scotian Shelf. The study highlights a strong seasonal cycle in shelf-wide pCO2 and spatial variability throughout the summer months driven by physical events. The simulated net flux of CO2 on the Scotian Shelf is out of the ocean, deviating from the global air–sea CO2 flux trend in continental shelves.
Frerk Pöppelmeier, David J. Janssen, Samuel L. Jaccard, and Thomas F. Stocker
Biogeosciences, 18, 5447–5463, https://doi.org/10.5194/bg-18-5447-2021, https://doi.org/10.5194/bg-18-5447-2021, 2021
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Chromium (Cr) is a redox-sensitive element that holds promise as a tracer of ocean oxygenation and biological activity. We here implemented the oxidation states Cr(III) and Cr(VI) in the Bern3D model to investigate the processes that shape the global Cr distribution. We find a Cr ocean residence time of 5–8 kyr and that the benthic source dominates the tracer budget. Further, regional model–data mismatches suggest strong Cr removal in oxygen minimum zones and a spatially variable benthic source.
Felipe S. Freitas, Philip A. Pika, Sabine Kasten, Bo B. Jørgensen, Jens Rassmann, Christophe Rabouille, Shaun Thomas, Henrik Sass, Richard D. Pancost, and Sandra Arndt
Biogeosciences, 18, 4651–4679, https://doi.org/10.5194/bg-18-4651-2021, https://doi.org/10.5194/bg-18-4651-2021, 2021
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It remains challenging to fully understand what controls carbon burial in marine sediments globally. Thus, we use a model–data approach to identify patterns of organic matter reactivity at the seafloor across distinct environmental conditions. Our findings support the notion that organic matter reactivity is a dynamic ecosystem property and strongly influences biogeochemical cycling and exchange. Our results are essential to improve predictions of future changes in carbon cycling and climate.
Josué Bock, Martine Michou, Pierre Nabat, Manabu Abe, Jane P. Mulcahy, Dirk J. L. Olivié, Jörg Schwinger, Parvadha Suntharalingam, Jerry Tjiputra, Marco van Hulten, Michio Watanabe, Andrew Yool, and Roland Séférian
Biogeosciences, 18, 3823–3860, https://doi.org/10.5194/bg-18-3823-2021, https://doi.org/10.5194/bg-18-3823-2021, 2021
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In this study we analyse surface ocean dimethylsulfide (DMS) concentration and flux to the atmosphere from four CMIP6 Earth system models over the historical and ssp585 simulations.
Our analysis of contemporary (1980–2009) climatologies shows that models better reproduce observations in mid to high latitudes. The models disagree on the sign of the trend of the global DMS flux from 1980 onwards. The models agree on a positive trend of DMS over polar latitudes following sea-ice retreat dynamics.
Mariana Hill Cruz, Iris Kriest, Yonss Saranga José, Rainer Kiko, Helena Hauss, and Andreas Oschlies
Biogeosciences, 18, 2891–2916, https://doi.org/10.5194/bg-18-2891-2021, https://doi.org/10.5194/bg-18-2891-2021, 2021
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In this study we use a regional biogeochemical model of the eastern tropical South Pacific Ocean to implicitly simulate the effect that fluctuations in populations of small pelagic fish, such as anchovy and sardine, may have on the biogeochemistry of the northern Humboldt Current System. To do so, we vary the zooplankton mortality in the model, under the assumption that these fishes eat zooplankton. We also evaluate the model for the first time against mesozooplankton observations.
Roman Bezhenar, Kyeong Ok Kim, Vladimir Maderich, Govert de With, and Kyung Tae Jung
Biogeosciences, 18, 2591–2607, https://doi.org/10.5194/bg-18-2591-2021, https://doi.org/10.5194/bg-18-2591-2021, 2021
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A new approach to predicting the accumulation of radionuclides in fish was developed by taking into account heterogeneity of distribution of contamination in the organism and dependence of metabolic process rates on the fish mass. Predicted concentrations of radionuclides in fish agreed well with the laboratory and field measurements. The model with the defined generic parameters could be used in marine environments without local calibration, which is important for emergency decision support.
Britta Munkes, Ulrike Löptien, and Heiner Dietze
Biogeosciences, 18, 2347–2378, https://doi.org/10.5194/bg-18-2347-2021, https://doi.org/10.5194/bg-18-2347-2021, 2021
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Cyanobacteria blooms can strongly aggravate eutrophication problems of water bodies. Their controls are, however, not comprehensively understood, which impedes effective management and protection plans. Here we review the current understanding of cyanobacteria blooms. Juxtaposition of respective field and laboratory studies with state-of-the-art mathematical models reveals substantial uncertainty associated with nutrient demands, grazing, and death of cyanobacteria.
Jens Terhaar, Olivier Torres, Timothée Bourgeois, and Lester Kwiatkowski
Biogeosciences, 18, 2221–2240, https://doi.org/10.5194/bg-18-2221-2021, https://doi.org/10.5194/bg-18-2221-2021, 2021
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The uptake of carbon, emitted as a result of human activities, results in ocean acidification. We analyse 21st-century projections of acidification in the Arctic Ocean, a region of particular vulnerability, using the latest generation of Earth system models. In this new generation of models there is a large decrease in the uncertainty associated with projections of Arctic Ocean acidification, with freshening playing a greater role in driving acidification than previously simulated.
Tobias R. Vonnahme, Martial Leroy, Silke Thoms, Dick van Oevelen, H. Rodger Harvey, Svein Kristiansen, Rolf Gradinger, Ulrike Dietrich, and Christoph Völker
Biogeosciences, 18, 1719–1747, https://doi.org/10.5194/bg-18-1719-2021, https://doi.org/10.5194/bg-18-1719-2021, 2021
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Diatoms are crucial for Arctic coastal spring blooms, and their growth is controlled by nutrients and light. At the end of the bloom, inorganic nitrogen or silicon can be limiting, but nitrogen can be regenerated by bacteria, extending the algal growth phase. Modeling these multi-nutrient dynamics and the role of bacteria is challenging yet crucial for accurate modeling. We recreated spring bloom dynamics in a cultivation experiment and developed a representative dynamic model.
Rebecca M. Wright, Corinne Le Quéré, Erik Buitenhuis, Sophie Pitois, and Mark J. Gibbons
Biogeosciences, 18, 1291–1320, https://doi.org/10.5194/bg-18-1291-2021, https://doi.org/10.5194/bg-18-1291-2021, 2021
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Jellyfish have been included in a global ocean biogeochemical model for the first time. The global mean jellyfish biomass in the model is within the observational range. Jellyfish are found to play an important role in the plankton ecosystem, influencing community structure, spatiotemporal dynamics and biomass. The model raises questions about the sensitivity of the zooplankton community to jellyfish mortality and the interactions between macrozooplankton and jellyfish.
Valeria Di Biagio, Gianpiero Cossarini, Stefano Salon, and Cosimo Solidoro
Biogeosciences, 17, 5967–5988, https://doi.org/10.5194/bg-17-5967-2020, https://doi.org/10.5194/bg-17-5967-2020, 2020
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Events that influence the functioning of the Earth’s ecosystems are of interest in relation to a changing climate. We propose a method to identify and characterise
wavesof extreme events affecting marine ecosystems for multi-week periods over wide areas. Our method can be applied to suitable ecosystem variables and has been used to describe different kinds of extreme event waves of phytoplankton chlorophyll in the Mediterranean Sea, by analysing the output from a high-resolution model.
Maria Paula da Silva, Lino A. Sander de Carvalho, Evlyn Novo, Daniel S. F. Jorge, and Claudio C. F. Barbosa
Biogeosciences, 17, 5355–5364, https://doi.org/10.5194/bg-17-5355-2020, https://doi.org/10.5194/bg-17-5355-2020, 2020
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In this study, we analyze the seasonal changes in the dissolved organic matter (DOM) quality (based on its optical properties) in four Amazon floodplain lakes. DOM plays a fundamental role in surface water chemistry, controlling metal bioavailability and mobility, and nutrient cycling. The model proposed in our paper highlights the potential to study DOM quality at a wider spatial scale, which may help to better understand the persistence and fate of DOM in the ecosystem.
Zhengchen Zang, Z. George Xue, Kehui Xu, Samuel J. Bentley, Qin Chen, Eurico J. D'Sa, Le Zhang, and Yanda Ou
Biogeosciences, 17, 5043–5055, https://doi.org/10.5194/bg-17-5043-2020, https://doi.org/10.5194/bg-17-5043-2020, 2020
Taylor A. Shropshire, Steven L. Morey, Eric P. Chassignet, Alexandra Bozec, Victoria J. Coles, Michael R. Landry, Rasmus Swalethorp, Glenn Zapfe, and Michael R. Stukel
Biogeosciences, 17, 3385–3407, https://doi.org/10.5194/bg-17-3385-2020, https://doi.org/10.5194/bg-17-3385-2020, 2020
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Zooplankton are the smallest animals in the ocean and important food for fish. Despite their importance, zooplankton have been relatively undersampled. To better understand the zooplankton community in the Gulf of Mexico (GoM), we developed a model to simulate their dynamics. We found that heterotrophic protists are important for supporting mesozooplankton, which are the primary prey of larval fish. The model developed in this study has the potential to improve fisheries management in the GoM.
Iris Kriest, Paul Kähler, Wolfgang Koeve, Karin Kvale, Volkmar Sauerland, and Andreas Oschlies
Biogeosciences, 17, 3057–3082, https://doi.org/10.5194/bg-17-3057-2020, https://doi.org/10.5194/bg-17-3057-2020, 2020
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Constants of global biogeochemical ocean models are often tuned
by handto match observations of nutrients or oxygen. We investigate the effect of this tuning by optimising six constants of a global biogeochemical model, simulated in five different offline circulations. Optimal values for three constants adjust to distinct features of the circulation applied and can afterwards be swapped among the circulations, without losing too much of the model's fit to observed quantities.
Laura Haffert, Matthias Haeckel, Henko de Stigter, and Felix Janssen
Biogeosciences, 17, 2767–2789, https://doi.org/10.5194/bg-17-2767-2020, https://doi.org/10.5194/bg-17-2767-2020, 2020
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Deep-sea mining for polymetallic nodules is expected to have severe environmental impacts. Through prognostic modelling, this study aims to provide a holistic assessment of the biogeochemical recovery after a disturbance event. It was found that the recovery strongly depends on the impact type; e.g. complete removal of the surface sediment reduces seafloor nutrient fluxes over centuries.
Fabian A. Gomez, Rik Wanninkhof, Leticia Barbero, Sang-Ki Lee, and Frank J. Hernandez Jr.
Biogeosciences, 17, 1685–1700, https://doi.org/10.5194/bg-17-1685-2020, https://doi.org/10.5194/bg-17-1685-2020, 2020
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We use a numerical model to infer annual changes of surface carbon chemistry in the Gulf of Mexico (GoM). The main seasonality drivers of partial pressure of carbon dioxide and aragonite saturation state from the model are temperature and river runoff. The GoM basin is a carbon sink in winter–spring and carbon source in summer–fall, but uptake prevails near the Mississippi Delta year-round due to high biological production. Our model results show good correspondence with observational studies.
Simon J. Parker
Biogeosciences, 17, 305–315, https://doi.org/10.5194/bg-17-305-2020, https://doi.org/10.5194/bg-17-305-2020, 2020
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Dissolved oxygen (DO) models typically assume constant ecosystem respiration over the course of a single day. Using a data-driven approach, this research examines this assumption in four streams across two (hydro-)geological types (Chalk and Greensand). Despite hydrogeological equivalence in terms of baseflow index for each hydrogeological pairing, model suitability differed within, rather than across, geology types. This corresponded with associated differences in timings of DO minima.
Fabrice Lacroix, Tatiana Ilyina, and Jens Hartmann
Biogeosciences, 17, 55–88, https://doi.org/10.5194/bg-17-55-2020, https://doi.org/10.5194/bg-17-55-2020, 2020
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Contributions of rivers to the oceanic cycling of carbon have been poorly represented in global models until now. Here, we assess the long–term implications of preindustrial riverine loads in the ocean in a novel framework which estimates the loads through a hierarchy of weathering and land–ocean export models. We investigate their impacts for the oceanic biological production and air–sea carbon flux. Finally, we assess the potential incorporation of the framework in an Earth system model.
Patrick A. Rafter, Aaron Bagnell, Dario Marconi, and Timothy DeVries
Biogeosciences, 16, 2617–2633, https://doi.org/10.5194/bg-16-2617-2019, https://doi.org/10.5194/bg-16-2617-2019, 2019
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The N isotopic composition of nitrate (
nitrate δ15N) is a useful tracer of ocean N cycling and many other ocean processes. Here, we use a global compilation of marine nitrate δ15N as an input, training, and validating dataset for an artificial neural network (a.k.a.,
machine learning) and examine basin-scale trends in marine nitrate δ15N from the surface to the seafloor.
Elena Terzić, Paolo Lazzari, Emanuele Organelli, Cosimo Solidoro, Stefano Salon, Fabrizio D'Ortenzio, and Pascal Conan
Biogeosciences, 16, 2527–2542, https://doi.org/10.5194/bg-16-2527-2019, https://doi.org/10.5194/bg-16-2527-2019, 2019
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Measuring ecosystem properties in the ocean is a hard business. Recent availability of data from Biogeochemical-Argo floats can help make this task easier. Numerical models can integrate these new data in a coherent picture and can be used to investigate the functioning of ecosystem processes. Our new approach merges experimental information and model capabilities to quantitatively demonstrate the importance of light and water vertical mixing for algae dynamics in the Mediterranean Sea.
Jens Terhaar, James C. Orr, Marion Gehlen, Christian Ethé, and Laurent Bopp
Biogeosciences, 16, 2343–2367, https://doi.org/10.5194/bg-16-2343-2019, https://doi.org/10.5194/bg-16-2343-2019, 2019
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A budget of anthropogenic carbon in the Arctic Ocean, the main driver of open-ocean acidification, was constructed for the first time using a high-resolution ocean model. The budget reveals that anthropogenic carbon enters the Arctic Ocean mainly by lateral transport; the air–sea flux plays a minor role. Coarser-resolution versions of the same model, typical of earth system models, store less anthropogenic carbon in the Arctic Ocean and thus underestimate ocean acidification in the Arctic Ocean.
Taylor S. Martin, François Primeau, and Karen L. Casciotti
Biogeosciences, 16, 347–367, https://doi.org/10.5194/bg-16-347-2019, https://doi.org/10.5194/bg-16-347-2019, 2019
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Nitrite is a key intermediate in many nitrogen (N) cycling processes in the ocean, particularly in areas with low oxygen that are hotspots for N loss. We have created a 3-D global N cycle model with nitrite as a tracer. Stable isotopes of N are also included in the model and we are able to model the isotope fractionation associated with each N cycling process. Our model accurately represents N concentrations and isotope distributions in the ocean.
Camille Richon, Jean-Claude Dutay, Laurent Bopp, Briac Le Vu, James C. Orr, Samuel Somot, and François Dulac
Biogeosciences, 16, 135–165, https://doi.org/10.5194/bg-16-135-2019, https://doi.org/10.5194/bg-16-135-2019, 2019
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We evaluate the effects of climate change and biogeochemical forcing evolution on the nutrient and plankton cycles of the Mediterranean Sea for the first time. We use a high-resolution coupled physical and biogeochemical model and perform 120-year transient simulations. The results indicate that changes in external nutrient fluxes and climate change may have synergistic or antagonistic effects on nutrient concentrations, depending on the region and the scenario.
Angela M. Kuhn, Katja Fennel, and Ilana Berman-Frank
Biogeosciences, 15, 7379–7401, https://doi.org/10.5194/bg-15-7379-2018, https://doi.org/10.5194/bg-15-7379-2018, 2018
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Recent studies demonstrate that marine N2 fixation can be carried out without light. However, direct measurements of N2 fixation in dark environments are relatively scarce. This study uses a model that represents biogeochemical cycles at a deep-ocean location in the Gulf of Aqaba (Red Sea). Different model versions are used to test assumptions about N2 fixers. Relaxing light limitation for marine N2 fixers improved the similarity between model results and observations of deep nitrate and oxygen.
Prima Anugerahanti, Shovonlal Roy, and Keith Haines
Biogeosciences, 15, 6685–6711, https://doi.org/10.5194/bg-15-6685-2018, https://doi.org/10.5194/bg-15-6685-2018, 2018
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Minor changes in the biogeochemical model equations lead to major dynamical changes. We assessed this structural sensitivity for the MEDUSA biogeochemical model on chlorophyll and nitrogen concentrations at five oceanographic stations over 10 years, using 1-D ensembles generated by combining different process equations. The ensemble performed better than the default model in most of the stations, suggesting that our approach is useful for generating a probabilistic biogeochemical ensemble model.
Audrey Gimenez, Melika Baklouti, Thibaut Wagener, and Thierry Moutin
Biogeosciences, 15, 6573–6589, https://doi.org/10.5194/bg-15-6573-2018, https://doi.org/10.5194/bg-15-6573-2018, 2018
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During the OUTPACE cruise conducted in the oligotrophic to ultra-oligotrophic region of the western tropical South Pacific, two contrasted regions were sampled in terms of N2 fixation rates, primary production rates and nutrient availability. The aim of this work was to investigate the role of N2 fixation in the differences observed between the two contrasted areas by comparing two simulations only differing by the presence or not of N2 fixers using a 1-D biogeochemical–physical coupled model.
Jenny Hieronymus, Kari Eilola, Magnus Hieronymus, H. E. Markus Meier, Sofia Saraiva, and Bengt Karlson
Biogeosciences, 15, 5113–5129, https://doi.org/10.5194/bg-15-5113-2018, https://doi.org/10.5194/bg-15-5113-2018, 2018
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This paper investigates how phytoplankton concentrations in the Baltic Sea co-vary with nutrient concentrations and other key variables on inter-annual timescales in a model integration over the years 1850–2008. The study area is not only affected by climate change; it has also been subjected to greatly increased nutrient loads due to extensive use of agricultural fertilizers. The results indicate the largest inter-annual coherence of phytoplankton with the limiting nutrient.
Cyril Dutheil, Olivier Aumont, Thomas Gorguès, Anne Lorrain, Sophie Bonnet, Martine Rodier, Cécile Dupouy, Takuhei Shiozaki, and Christophe Menkes
Biogeosciences, 15, 4333–4352, https://doi.org/10.5194/bg-15-4333-2018, https://doi.org/10.5194/bg-15-4333-2018, 2018
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N2 fixation is recognized as one of the major sources of nitrogen in the ocean. Thus, N2 fixation sustains a significant part of the primary production (PP) by supplying the most common limiting nutrient for phytoplankton growth. From numerical simulations, the local maximums of Trichodesmium biomass in the Pacific are found around islands, explained by the iron fluxes from island sediments. We assessed that 15 % of the PP may be due to Trichodesmium in the low-nutrient, low-chlorophyll areas.
Akitomo Yamamoto, Ayako Abe-Ouchi, and Yasuhiro Yamanaka
Biogeosciences, 15, 4163–4180, https://doi.org/10.5194/bg-15-4163-2018, https://doi.org/10.5194/bg-15-4163-2018, 2018
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Millennial-scale changes in oceanic CO2 uptake due to global warming are simulated by a GCM and offline biogeochemical model. Sensitivity studies show that decreases in oceanic CO2 uptake are mainly caused by a weaker biological pump and seawater warming. Enhanced CO2 uptake due to weaker equatorial upwelling cancels out reduced CO2 uptake due to weaker AMOC and AABW formation. Thus, circulation change plays only a small direct role in reduction of CO2 uptake due to global warming.
Cited articles
Akaike, H.: A new look at the statistical model identification, IEEE Trans.
Automat. Contr., 19, 716–723, https://doi.org/10.1109/TAC.1974.1100705, 1974.
Allen, J. I. and Clarke, K. R.: Effects of demersal trawling on ecosystem functioning in the North Sea: A modelling study, Mar. Ecol. Prog. Ser., 336, 63–75, https://doi.org/10.3354/meps336063, 2007.
Almroth, E., Tengberg, A., Andersson, J. H., Pakhomova, S., and Hall, P. O.
J.: Effects of resuspension on benthic fluxes of oxygen, nutrients,
dissolved inorganic carbon, iron and manganese in the Gulf of Finland,
Baltic Sea, Cont. Shelf Res., 29, 807–818,
https://doi.org/10.1016/j.csr.2008.12.011, 2009.
Amoroso, R. O., Pitcher, C. R., Rijnsdorp, A. D., McConnaughey, R. A.,
Parma, A. M., Suuronen, P., Eigaard, O. R., Bastardie, F., Hintzen, N. T.,
Althaus, F., Baird, S. J., Black, J., Buhl-Mortensen, L., Campbell, A. B.,
Catarino, R., Collie, J., Cowan, J. H., Durholtz, D., Engstrom, N.,
Fairweather, T. P., Fock, H. O., Ford, R., Gálvez, P. A., Gerritsen, H.,
Góngora, M. E., González, J. A., Hiddink, J. G., Hughes, K. M.,
Intelmann, S. S., Jenkins, C., Jonsson, P., Kainge, P., Kangas, M., Kathena,
J. N., Kavadas, S., Leslie, R. W., Lewise, S. G., Lundy, M., Makin, D.,
Martin, J., Mazor, T., Gonzalez-Mirelis, G., Newman, S. J., Papadopoulou,
N., Posen, P. E., Rochester, W., Russok, T., Salal, A., Semmens, J. M.,
Silvan, C., Tsoloso, A., Vanelslander, B., Wakefield, C. B., Wood, B. A.,
Hilborn, R., Kaiser, M. J., and Jennings, S.: Bottom trawl fishing footprints
on the world's continental shelves, P. Natl. Acad. Sci. USA,
115, E10275–E10282, https://doi.org/10.1073/pnas.1802379115, 2018.
Bergman, M. J. N. and Hup, M.: Direct effects of beamtrawling on macrofauna
in a sandy sediment in the southern north sea, ICES J. Mar. Sci., 49,
5–11, https://doi.org/10.1093/icesjms/49.1.5, 1992.
Bergman, M. J. N. and Van Santbrink, J. W.: Mortality in megafaunal benthic
populations caused by trawl fisheries on the Dutch continental shelf in the
North Sea in 1994, ICES J. Mar. Sci., 57, 1321–1331,
https://doi.org/10.1006/jmsc.2000.0917, 2000.
Boudreau, B. P.: The diffusive tortuosity of fine-grained unlithified
sediments, Geochim. Cosmochim. Ac., 60, 3139–3142,
https://doi.org/10.1016/0016-7037(96)00158-5, 1996.
Braeckman, U., Foshtomi, M. Y., Van Gansbeke, D., Meysman, F., Soetaert, K.,
Vincx, M., and Vanaverbeke, J.: Variable Importance of Macrofaunal Functional
Biodiversity for Biogeochemical Cycling in Temperate Coastal Sediments,
Ecosystems, 17, 720–737, https://doi.org/10.1007/s10021-014-9755-7, 2014.
Brylinsky, M., Gibson, J., and Gordon Jr., D. C.: Impacts of Flounder Trawls
on the Intertidal Habitat and Community of the Minas Basin, Bay of Fundy,
Can. J. Fish. Aquat. Sci., 51, 650–661, https://doi.org/10.1139/f94-066, 1994.
Butenschön, M., Clark, J., Aldridge, J. N., Icarus Allen, J., Artioli,
Y., Blackford, J., Bruggeman, J., Cazenave, P., Ciavatta, S., Kay, S.,
Lessin, G., Van Leeuwen, S., Van Der Molen, J., De Mora, L., Polimene, L.,
Sailley, S., Stephens, N., and Torres, R.: ERSEM 15.06: A generic model for
marine biogeochemistry and the ecosystem dynamics of the lower trophic
levels, Geosci. Model Dev., 9, 1293–1339, https://doi.org/10.5194/gmd-9-1293-2016,
2016.
Cashion, T., Al-Abdulrazzak, D., Belhabib, D., Derrick, B., Divovich, E.,
Moutopoulos, D. K., Noël, S. L., Palomares, M. L. D., Teh, L. C. L.,
Zeller, D., and Pauly, D.: Reconstructing global marine fishing gear use:
Catches and landed values by gear type and sector, Fish. Res., 206,
57–64, https://doi.org/10.1016/j.fishres.2018.04.010, 2018.
Copernicus Marine Service Information: Atlantic- European North West
Shelf- Ocean Biogeochemistry Reanalysis, available at:
http://marine.copernicus.eu/services-portfolio/access-to-products/?option=com_csw&view=details&product_id=NORTHWESTSHELF_REANALYSIS_BIO_004_011 (last access: 4 April 2020), 2020.
Couceiro, F., Fones, G. R., Thompson, C. E. L., Statham, P. J., Sivyer, D.
B., Parker, R., Kelly-Gerreyn, B. A., and Amos, C. L.: Impact of resuspension
of cohesive sediments at the Oyster Grounds (North Sea) on nutrient exchange
across the sediment-water interface, Biogeochemistry, 113, 37–52,
https://doi.org/10.1007/s10533-012-9710-7, 2013.
Dauwe, B., Herman, P. M. J., and Heip, C. H. R.: Community structure and
bioturbation potential of macrofauna at four North Sea stations with
contrasting food supply, Mar. Ecol. Prog. Ser., 173, 67–83,
https://doi.org/10.3354/meps173067, 1998.
De Borger, E. and Soetaert, K.: edeborger/Trawling_Biogeochemistry_BGS: Trawling disturbance model, Zenodo, https://doi.org/10.5281/zenodo.4697277, 2021.
De Borger, E., Braeckman, U., and Soetaert, K.: Rapid organic matter cycling
in North Sea sediments, Cont. Shelf Res., 214, 104327,
https://doi.org/10.1016/j.csr.2020.104327, 2021.
Depestele, J., Ivanović, A., Degrendele, K., Esmaeili, M., Polet, H.,
Roche, M., Summerbell, K., Teal, L. R., Vanelslander, B., and O'Neill, F. G.:
Measuring and assessing the physical impact of beam trawling, ICES J. Mar.
Sci., 73, i15–i26, https://doi.org/10.1093/icesjms/fsv056,
2016.
Depestele, J., Degrendele, K., Esmaeili, M., Ivanovic, A., Kröger, S.,
O'Neill, F. G., Parker, R., Polet, H., Roche, M., Teal, L. R., Vanelslander,
B., and Rijnsdorp, A. D.: Comparison of mechanical disturbance in soft
sediments due to tickler-chain SumWing trawl vs. Electro-fitted PulseWing
trawl, ICES J. Mar. Sci., 76, 312–329, https://doi.org/10.1093/icesjms/fsy124, 2019.
Dounas, C. G., Davies, I. M., Hayes, P. J., Arvanitidis, C. D., and Koulouri,
P. T.: The effect of different types of otter trawl ground rope on benthic
nutrient releases and sediment biogeochemistry, Benthic Habitats Eff. Fish.,
41, 539–544, 2005.
Duplisea, D. E., Jennings, S., Malcolm, S. J., Parker, R., and Sivyer, D. B.:
Modelling potential impacts of bottom trawl fisheries on soft sediment
biogeochemistry in the North Sea, Geochem. Trans., 2, 112–117,
https://doi.org/10.1039/b108342b, 2001.
Durrieu de Madron, X., Ferré, B., Le Corre, G., Grenz, C., Conan, P.,
Pujo-Pay, M., Buscail, R., and Bodiot, O.: Trawling-induced resuspension and
dispersal of muddy sediments and dissolved elements in the Gulf of Lion (NW
Mediterranean), Cont. Shelf Res., 25, 2387–2409,
https://doi.org/10.1016/j.csr.2005.08.002, 2005.
Ehrenhauss, S., Witte, U., Janssen, F., and Huettel, M.: Decomposition of
diatoms and nutrient dynamics in permeable North Sea sediments, Cont. Shelf
Res., 24, 721–737, https://doi.org/10.1016/j.csr.2004.01.002, 2004.
Eigaard, O. R., Bastardie, F., Hintzen, N. T., Buhl-Mortensen, L.,
Buhl-Mortensen, P., Catarino, R., Dinesen, G. E., Egekvist, J., Fock, H. O.,
Geitner, K., Gerritsen, H. D., González, M. M., Jonsson, P., Kavadas,
S., Laffargue, P., Lundy, M., Gonzalez-Mirelis, G., Nielsen, J. R.,
Papadopoulou, N., Posen, P. E., Pulcinella, J., Russo, T., Sala, A., Silva,
C., Smith, C. J., Vanelslander, B., and Rijnsdorp, A. D.: The footprint of
bottom trawling in European waters: Distribution, intensity, and seabed
integrity, ICES J. Mar. Sci., 74, 847–865, https://doi.org/10.1093/icesjms/fsw194,
2017.
Ferguson, A. J. P., Oakes, J., and Eyre, B. D.: Bottom trawling reduces
benthic denitrification and has the potential to influence the global
nitrogen cycle, Limnol. Oceanogr. Lett., 5, 237–245, https://doi.org/10.1002/lol2.10150, 2020.
Fick, A.: Ueber Diffusion, Ann. Phys. Chem., 170, 59–86,
https://doi.org/10.1002/andp.18551700105, 1855.
Galloway, J. N., Dentener, F. J., Capone, D. G., Boyer, E. W., Howarth, R.
W., Seitzinger, S. P., Asner, G. P., Cleveland, C. C., Green, P. A.,
Holland, E. A., Karl, D. M., Michaels, A. F., Porter, J. H., Townsend, A. R.,
and Vorosmarty, C. J.: Nitrogen Cycles: Past, Present, and Future,
Biogeochemistry, 70, 153–226, https://doi.org/10.1007/s10533-004-0370-0, 2004.
GEBCO Compilation Group: GEBCO 2020 Grid,
https://doi.org/10.5285/a29c5465-b138-234d-e053-6c86abc040b9, 2020.
Hale, R., Godbold, J. A., Sciberras, M., Dwight, J., Wood, C., Hiddink, J. G., and Solan, M.: Mediation of macronutrients and carbon by post-disturbance shelf sea sediment communities, Biogeochemistry, 135, 121–133, https://doi.org/10.1007/s10533-017-0350-9, 2017.
Hiddink, J. G., Jennings, S., Sciberras, M., Szostek, C. L., Hughes, K. M.,
Ellis, N., Rijnsdorp, A. D., McConnaughey, R. A., Mazor, T., Hilborn, R.,
Collie, J. S., Pitcher, C. R., Amoroso, R. O., Parma, A. M., Suuronen, P.,
and Kaiser, M. J.: Global analysis of depletion and recovery of seabed biota
after bottom trawling disturbance, P. Natl. Acad. Sci. USA, 114,
8301–8306, https://doi.org/10.1073/pnas.1618858114, 2017.
Hiddink, J. G., Jennings, S., Sciberras, M., Bolam, S. G., Cambiè, G.,
McConnaughey, R. A., Mazor, T., Hilborn, R., Collie, J. S., Pitcher, C. R.,
Parma, A. M., Suuronen, P., Kaiser, M. J., and Rijnsdorp, A. D.: Assessing
bottom trawling impacts based on the longevity of benthic invertebrates, J.
Appl. Ecol., 56, 1075–1084, https://doi.org/10.1111/1365-2664.13278, 2019.
Huettel, M. and Gust, G.: Impact of bioroughness on interfacial solute
exchange in permeable sediments, Mar. Ecol. Prog. Ser., 89, 253–267,
https://doi.org/10.3354/meps089253, 1992.
Huettel, M. and Rusch, A.: Transport and degradation of phytoplankton in
permeable sediment, Limnol. Oceanogr., 45, 534–549,
https://doi.org/10.4319/lo.2000.45.3.0534, 2000.
ICES: Working Group on Electrical Trawling (WGELECTRA), ICES Sci. Reports/Rapp. Sci. du Ciem, 1, 87 pp., https://doi.org/10.17895/ices.pub.5619, 2020.
Kaiser, M. J., Clarke, K. R., Hinz, H., Austen, M. C. V., Somerfield, P. J.,
and Karakassis, I.: Global analysis of response and recovery of benthic
biota to fishing, Mar. Ecol. Prog. Ser., 311, 1–14,
https://doi.org/10.3354/meps311001, 2006.
Le Bot, S., Lafite, R., Fournier, M., Baltzer, A., and Desprez, M.:
Morphological and sedimentary impacts and recovery on a mixed sandy to
pebbly seabed exposed to marine aggregate extraction (Eastern English
Channel, France), Estuar. Coast. Shelf Sci., 89, 221–233,
https://doi.org/10.1016/j.ecss.2010.06.012, 2010.
Lucchetti, A. and Sala, A.: Impact and performance of mediterranean fishing
gear by side-scan sonar technology, Can. J. Fish. Aquat. Sci., 69,
1806–1816, https://doi.org/10.1139/f2012-107, 2012.
Martín, J., Puig, P., Masqué, P., Palanques, A., and
Sánchez-Gómez, A.: Impact of bottom trawling on deep-sea sediment
properties along the flanks of a submarine canyon, PLoS One, 9, e104536,
https://doi.org/10.1371/journal.pone.0104536, 2014.
Mayer, L. M.: Surface area control of organic carbon accumulation in
continental shelf sediments, Geochim. Cosmochim. Ac., 58, 1271–1284,
https://doi.org/10.1016/0016-7037(94)90381-6, 1994.
Mayer, L. M., Schick, D. F., Findlay, R. H., and Rice, D. L.: Effects of
commercial dragging on sedimentary organic matter, Mar. Environ. Res.,
31, 249–261, https://doi.org/10.1016/0141-1136(91)90015-Z, 1991.
McConnaughey, R. A., Hiddink, J. G., Jennings, S., Pitcher, C. R., Kaiser,
M. J., Suuronen, P., Sciberras, M., Rijnsdorp, A. D., Collie, J. S., Mazor,
T., Amoroso, R. O., Parma, A. M., and Hilborn, R.: Choosing best practices
for managing impacts of trawl fishing on seabed habitats and biota, Fish
Fish., 21, 319–337, https://doi.org/10.1111/faf.12431, 2020.
Mengual, B., Cayocca, F., Le Hir, P., Draye, R., Laffargue, P., Vincent, B.,
and Garlan, T.: Influence of bottom trawling on sediment resuspension in the
“Grande-Vasière” area (Bay of Biscay, France), Ocean Dyn., 66,
1181–1207, https://doi.org/10.1007/s10236-016-0974-7, 2016.
Mengual, B., Le Hir, P., Cayocca, F. and Garlan, T.: Bottom trawling
contribution to the spatio-temporal variability of sediment fluxes on the
continental shelf of the Bay of Biscay (France), Mar. Geol., 414(May),
77–91, https://doi.org/10.1016/j.margeo.2019.05.009, 2019.
Middelburg, J. J., Soetaert, K., Herman, P. M. J., and Heip, C. H. R.:
Denitrification in marine sediments: A model study, Global Biogeochem.
Cy., 10, 661–673, https://doi.org/10.1029/96GB02562, 1996.
Morato, T., Watson, R., Pitcher, T. J., and Pauly, D.: Fishing down the deep,
Fish Fish., 7, 24–34, https://doi.org/10.1111/j.1467-2979.2006.00205.x, 2006.
Murray, F., Copland, P., Boulcott, P., Robertson, M., and Bailey, N.: Impacts
of electrofishing for razor clams (Ensis spp.) on benthic fauna, Fish. Res.,
174, 40–46, https://doi.org/10.1016/j.fishres.2015.08.028, 2016.
Norse, E. A., Brooke, S., Cheung, W. W. L., Clark, M. R., Ekeland, I.,
Froese, R., Gjerde, K. M., Haedrich, R. L., Heppell, S. S., Morato, T.,
Morgan, L. E., Pauly, D., Sumaila, R., and Watson, R.: Sustainability of
deep-sea fisheries, Mar. Policy, 36, 307–320,
https://doi.org/10.1016/j.marpol.2011.06.008, 2012.
O'Neill, F. G. and Ivanović, A.: The physical impact of towed demersal
fishing gears on soft sediments, ICES J. Mar. Sci., 73, i5–i14, https://doi.org/10.1093/icesjms/fsv125, 2016.
O'Neill, F. G. and Summerbell, K.: The mobilisation of sediment by demersal
otter trawls, Mar. Pollut. Bull., 62, 1088–1097,
https://doi.org/10.1016/j.marpolbul.2011.01.038, 2011.
Palanques, A., Puig, P., Guillén, J., Demestre, M., and Martín, J.:
Effects of bottom trawling on the Ebro continental shelf sedimentary system
(NW Mediterranean), Cont. Shelf Res., 72, 83–98,
https://doi.org/10.1016/j.csr.2013.10.008, 2014.
Paradis, S., Pusceddu, A., Masqué, P., Puig, P., Moccia, D., Russo, T., and Lo Iacono, C.: Organic matter contents and degradation in a highly trawled area during fresh particle inputs (Gulf of Castellammare, southwestern Mediterranean), Biogeosciences, 16, 4307–4320, https://doi.org/10.5194/bg-16-4307-2019, 2019.
Paradis, S., Goñi, M., Masqué, P., Durán, R., Arjona-Camas, M.,
Palanques, A., and Puig, P.: Persistence of Biogeochemical Alterations of
Deep-Sea Sediments by Bottom Trawling, Geophys. Res. Lett., 48, 1–12,
https://doi.org/10.1029/2020gl091279, 2021.
Paschen, M., Richter, U., and Köpnick, W.: Trawl Penetration in the
Seabed (TRAPESE), Final report Contract No. 96-006, 2000.
Pinheiro, J., Bates, D., DebRoy, S., Sarkar, D., and R Core Team:
{nlme}: Linear and Nonlinear Mixed Effects
Models, available at: https://cran.r-project.org/package=nlme (last access: 19 April 2021),
2019.
Pinheiro, J. C. and Bates, D. M.: Mixed-Effects Models in S and S-PLUS,
edited by: Chambers, J., Eddy, W., Hardle, W., Sheater, S., and Tierney, L.,
Springer-Verlag, New York, 2000.
Pitcher, C. R., Ellis, N., Jennings, S., Hiddink, J. G., Mazor, T., Kaiser,
M. J., Kangas, M. I., McConnaughey, R. A., Parma, A. M., Rijnsdorp, A. D.,
Suuronen, P., Collie, J. S., Amoroso, R., Hughes, K. M., and Hilborn, R.:
Estimating the sustainability of towed fishing-gear impacts on seabed
habitats: a simple quantitative risk assessment method applicable to
data-limited fisheries, Methods Ecol. Evol., 8, 472–480,
https://doi.org/10.1111/2041-210X.12705, 2017.
Polymenakou, P. N., Pusceddu, A., Tselepides, A., Polychronaki, T.,
Giannakourou, A., Fiordelmondo, C., Hatziyanni, E., and Danovaro, R.: Benthic
microbial abundance and activities in an intensively trawled ecosystem
(Thermaikos Gulf, Aegean Sea), Cont. Shelf Res., 25, 2570–2584,
https://doi.org/10.1016/j.csr.2005.08.018, 2005.
Poos, J.-J., Hintzen, N. T., van Rijssel, J. C., and Rijnsdorp, A. D.:
Efficiency changes in bottom trawling for flatfish species as a result of
the replacement of mechanical stimulation by electric stimulation, edited by:
Pol, M., ICES J. Mar. Sci., 77, 2635–2645, https://doi.org/10.1093/icesjms/fsaa126, 2020.
Price, W. L.: A controlled random search procedure for global optimisation,
Comput. J., 20, 367–370, https://doi.org/10.1093/comjnl/20.4.367, 1977.
Provoost, P., Braeckman, U., Van Gansbeke, D., Moodley, L., Soetaert, K.,
Middelburg, J. J., and Vanaverbeke, J.: Modelling benthic oxygen consumption
and benthic-pelagic coupling at a shallow station in the southern North Sea,
Estuar. Coast. Shelf Sci., 120, 1–11, https://doi.org/10.1016/j.ecss.2013.01.008, 2013.
Puig, P., Canals, M., Company, J. B., Martín, J., Amblas, D., Lastras,
G., Palanques, A., and Calafat, A. M.: Ploughing the deep sea floor, Nature,
489, 286–289, https://doi.org/10.1038/nature11410, 2012.
Pusceddu, A., Bianchelli, S., Martín, J., Puig, P., Palanques, A.,
Masqué, P., and Danovaro, R.: Chronic and intensive bottom trawling
impairs deep-sea biodiversity and ecosystem functioning, P. Natl. Acad.
Sci. USA, 111, 8861–8866, https://doi.org/10.1073/pnas.1405454111, 2014.
Pusceddu, A., Fiordelmondo, C., Polymenakou, P., Polychronaki, T.,
Tselepides, A., and Danovaro, R.: Effects of bottom trawling on the quantity
and biochemical composition of organic matter in coastal marine sediments
(Thermaikos Gulf, northwestern Aegean Sea), Cont. Shelf Res., 25,
2491–2505, https://doi.org/10.1016/j.csr.2005.08.013, 2005.
R Core Team: R: A language and environment for statistical computing,
available at: http://www.r-project.org/ (last access: 19 April 2021), 2020.
Riemann, B. and Hoffmann, E.: Ecological consequences of dredging and bottom
trawling in the Limfjord, Denmark, Mar. Ecol. Prog. Ser., 69,
171–178, https://doi.org/10.3354/meps069171, 1991.
Rijnsdorp, A.: Micro-scale distribution of beam trawl effort in the southern
North Sea between 1993 and 1996 in relation to the trawling frequency of the
sea bed and the impact on benthic organisms, ICES J. Mar. Sci., 55,
403–419, https://doi.org/10.1006/jmsc.1997.0326, 1998.
Rijnsdorp, A. D., Bastardie, F., Bolam, S. G., Buhl-Mortensen, L., Eigaard,
O. R., Hamon, K. G., Hiddink, J. G., Hintzen, N. T., Ivanović, A.,
Kenny, A., Laffargue, P., Nielsen, J. R., O'Neill, F. G., Piet, G. J.,
Polet, H., Sala, A., Smith, C., van Denderen, P. D., van Kooten, T., and
Zengin, M.: Towards a framework for the quantitative assessment of trawling
impact on the seabed and benthic ecosystem, ICES J. Mar. Sci.,
73, i127–i138, https://doi.org/10.1093/icesjms/fsv207, 2016.
Rijnsdorp, A. D., Bolam, S. G., Garcia, C., Hiddink, J. G., Hintzen, N. T.,
van Denderen, P. D., and van Kooten, T.: Estimating sensitivity of seabed
habitats to disturbance by bottom trawling based on the longevity of benthic
fauna, Ecol. Appl., 28, 1302–1312, https://doi.org/10.1002/eap.1731, 2018.
Rijnsdorp, A. D., Boute, P., Tiano, J., Lankheet, M., Soetaert, K.,
Beier, U., De Borger, E., and Hintzen, N.: The implications of a transition
from tickler chain beam trawl to electric pulse trawl on the sustainability
and ecosystem effects of the fishery for North Sea sole: an impact
assessment, IJmuiden, 108 pp., 2020a.
Rijnsdorp, A. D., Depestele, J., Eigaard, O. R., Hintzen, N. T.,
Ivanović, A., Molenaar, P., O'Neill, F. G., Polet, H., Poos, J. J., and
van Kooten, T. : Mitigating seafloor disturbance of bottom trawl fisheries
for North Sea sole Solea solea by replacing mechanical with electrical
stimulation, PLoS One, 15, e0228528, https://doi.org/10.1371/journal.pone.0228528, 2020b.
Robinson, J. E., Newell, R. C., Seiderer, L. J., and Simpson, N. M.: Impacts
of aggregate dredging on sediment composition and associated benthic fauna
at an offshore dredge site in the southern North Sea, Mar. Environ. Res.,
60, 51–68, https://doi.org/10.1016/j.marenvres.2004.09.001, 2005.
Sciberras, M., Parker, R., Powell, C., Robertson, C., Kröger, S., Bolam,
S., and Geert Hiddink, J.: Impacts of bottom fishing on the sediment infaunal
community and biogeochemistry of cohesive and non-cohesive sediments,
Limnol. Oceanogr., 61, 2076–2089, https://doi.org/10.1002/lno.10354, 2016.
Sciberras, M., Hiddink, J. G., Jennings, S., Szostek, C. L., Hughes, K. M.,
Kneafsey, B., Clarke, L. J., Ellis, N., Rijnsdorp, A. D., McConnaughey, R.
A., Hilborn, R., Collie, J. S., Pitcher, C. R., Amoroso, R. O., Parma, A.
M., Suuronen, P., and Kaiser, M. J.: Response of benthic fauna to
experimental bottom fishing: A global meta-analysis, Fish Fish., 19,
698–715, https://doi.org/10.1111/faf.12283, 2018.
Seitzinger, S., Harrison, J. A., Böhlke, J. K., Bouwman, A. F.,
Lowrance, R., Peterson, B., Tobias, C., and Van Drecht, G.: Denitrification
across landscapes and waterscapes: A synthesis, Ecol. Appl., 16,
2064–2090, https://doi.org/10.1890/1051-0761(2006)016[2064:DALAWA]2.0.CO;2, 2006.
Soetaert, K.: rootSolve: Nonlinear root finding, equilibrium and
steady-state analysis of ordinary differential equations, available at: https://CRAN.R-project.org/package=rootSolve, (last access: 19 April 2021), 2009.
Soetaert, K. and Meysman, F.: Reactive transport in aquatic ecosystems:
Rapid model prototyping in the open source software R, Environ. Model.
Softw., 32, 49–60, https://doi.org/10.1016/j.envsoft.2011.08.011, 2012.
Soetaert, K. and Middelburg, J. J.: Modeling eutrophication and
oligotrophication of shallow-water marine systems: The importance of
sediments under stratified and well-mixed conditions, Hydrobiologia, 629,
239–254, https://doi.org/10.1007/s10750-009-9777-x, 2009.
Soetaert, K. and Petzoldt, T.: Inverse Modelling, Sensitivity and Monte
Carlo analysis in R Using PAckage FME, J. Stat. Softw., 33, 1–28,
https://doi.org/10.18637/jss.v033.i03, 2010.
Soetaert, K. and Petzoldt, T.: marelac: Tools for Aquatic Sciences, available at: https://cran.r-project.org/package=marelac (last access: 19 April 2021), 2018.
Soetaert, K., Herman, P. M. J., and Middelburg, J. J.: A model of early
diagenetic processes from the shelf to abyssal depths, Geochim. Cosmochim.
Ac., 60, 1019–1040, https://doi.org/10.1016/0016-7037(96)00013-0, 1996a.
Soetaert, K., Herman, P. M. J., and Middelburg, J. J.: Dynamic response of
deep-sea sediments to seasonal variations: A model, Limnol. Oceanogr.,
41, 1651–1668, https://doi.org/10.4319/lo.1996.41.8.1651, 1996b.
Soetaert, K., Petzoldt, T., and Setzer, R. W.: Solving Differential Equations
in R: Package deSolve, J. Stat. Softw., 33, 1–25,
https://doi.org/10.18637/jss.v033.i09, 2010.
Soetaert, M., Chiers, K., Duchateau, L., Polet, H., Verschueren, B., and
Decostere, A.: Determining the safety range of electrical pulses for two
benthic invertebrates: brown shrimp (Crangon crangon L.) and ragworm (Alitta virens S.), ICES J. Mar. Sci., 72, 973–980, https://doi.org/10.1093/icesjms/fsu176,
2015a.
Soetaert, M., Decostere, A., Polet, H., Verschueren, B., and Chiers, K.:
Electrotrawling: a promising alternative fishing technique warranting
further exploration, Fish Fish., 16, 104–124, https://doi.org/10.1111/faf.12047,
2015b.
Soetaert, M., Verschueren, B., Chiers, K., Duchateau, L., Polet, H., and
Decostere, A.: Laboratory Study of the Impact of Repetitive Electrical and
Mechanical Stimulation on Brown Shrimp Crangon crangon, Mar. Coast. Fish.,
8, 404–411, https://doi.org/10.1080/19425120.2016.1180333, 2016.
Tiano, J. C., Witbaard, R., Bergman, M. J. N., Van Rijswijk, P., Tramper,
A., Van Oevelen, D., Soetaert, K., and Degraer, S.: Acute impacts of bottom
trawl gears on benthic metabolism and nutrient cycling, ICES J. Mar. Sci.,
76, 1917–1930, https://doi.org/10.1093/icesjms/fsz060, 2019.
Tiano, J. C., van der Reijden, K. J., O'Flynn, S., Beauchard, O., van der
Ree, S., van der Wees, J., Ysebaert, T., and Soetaert, K.: Experimental
bottom trawling finds resilience in large-bodied infauna but vulnerability
for epifauna and juveniles in the Frisian Front, Mar. Environ. Res.,
159, 104964, https://doi.org/10.1016/j.marenvres.2020.104964, 2020.
Toussaint, E., De Borger, E., Braeckman, U., De Backer, A., Soetaert, K., and
Vanaverbeke, J.: Faunal and environmental drivers of carbon and nitrogen
cycling along a permeability gradient in shallow North Sea sediments, Sci.
Total Environ., 767, 144994, https://doi.org/10.1016/j.scitotenv.2021.144994, 2021.
Trimmer, M., Petersen, J., Sivyer, D., Mills, C., Young, E., and Parker, E.:
Impact of long-term benthic trawl disturbance on sediment sorting and
biogeochemistry in the southern North Sea, Mar. Ecol. Prog. Ser., 298,
79–94, https://doi.org/10.3354/meps298079, 2005.
van der Molen, J., Aldridge, J. N., Coughlan, C., Parker, E. R., Stephens,
D., and Ruardij, P.: Modelling marine ecosystem response to climate change
and trawling in the North Sea, Biogeochemistry, 113, 213–236,
https://doi.org/10.1007/s10533-012-9763-7, 2013.
Van De Velde, S., Van Lancker, V., Hidalgo-Martinez, S., Berelson, W. M., and
Meysman, F. J. R.: Anthropogenic disturbance keeps the coastal seafloor
biogeochemistry in a transient state, Sci. Rep., 8, 5582,
https://doi.org/10.1038/s41598-018-23925-y, 2018.
van Marlen, B., de Haan, D., van Gool, A., and Burggraaf, D.: The effect of
pulse stimulation on marine biota – Research in relation to ICES advice –
Progress report on the effects on benthic invertebrates, Inst. Mar. Resour. Ecosyst. Stud. Rep., C103/09, 53, 2009.
van Marlen, B., Wiegerinck, J. A. M., van Os-Koomen, E., and van Barneveld,
E.: Catch comparison of flatfish pulse trawls and a tickler chain beam
trawl, Fish. Res., 151, 57–69, https://doi.org/10.1016/j.fishres.2013.11.007, 2014.
Watling, L., Findlay, R. H., Mayer, L. M., and Schick, D. F.: Impact of a
scallop drag on the sediment chemistry, microbiota, and faunal assemblages
of a shallow subtidal marine benthic community, J. Sea Res., 46,
309–324, https://doi.org/10.1016/S1385-1101(01)00083-1, 2001.
Watson, R. A. and Morato, T.: Fishing down the deep: Accounting for
within-species changes in depth of fishing, Fish. Res., 140, 63–65,
https://doi.org/10.1016/j.fishres.2012.12.004, 2013.
West, B. T., Welch, K. B., and Galecki, A. T.: Linear Mixed Models, Chapman
and Hall/CRC, London, https://doi.org/10.1201/b17198, 2014.
Zuur, A. F., Ieno, E. N., Walker, N., Saveliev, A. A., and Smith, G. M.:
Mixed effects models and extensions in ecology with R, Springer New York,
New York, NY, 2009.
Short summary
Bottom trawling alters benthic mineralization: the recycling of organic material (OM) to free nutrients. To better understand how this occurs, trawling events were added to a model of seafloor OM recycling. Results show that bottom trawling reduces OM and free nutrients in sediments through direct removal thereof and of fauna which transport OM to deeper sediment layers protected from fishing. Our results support temporospatial trawl restrictions to allow key sediment functions to recover.
Bottom trawling alters benthic mineralization: the recycling of organic material (OM) to free...
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