Articles | Volume 15, issue 11
Biogeosciences, 15, 3561–3576, 2018
https://doi.org/10.5194/bg-15-3561-2018
Biogeosciences, 15, 3561–3576, 2018
https://doi.org/10.5194/bg-15-3561-2018
Research article
15 Jun 2018
Research article | 15 Jun 2018

Seasonal patterns in phytoplankton biomass across the northern and deep Gulf of Mexico: a numerical model study

Fabian A. Gomez et al.

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Cited articles

Aulenbach, B. T., Buxton, H. T., Battaglin, W. T., and Coupe, R. H.: Streamflow and nutrient fluxes of the Mississippi-Atchafalaya River Basin and subbasins for the period of record through 2005, US Geological Survey Open-File Report, 2007–1080, 2007. 
Behrenfeld, M.: Abandoning Sverdrup's critical depth hypothesis on phytoplankton blooms, Ecology 91, 977–989, 2010. 
Biggs, D. C.: Nutrients, plankton and productivity in a warm-core ring in the western Gulf of Mexico, J. Geophys. Res., 97, 2143–2154, 1992. 
Chapman, D. C.: Numerical treatment of cross-shelf open boundaries in a barotropic coastal ocean model, J. Phys. Ocean., 15, 1060–1075, 1985. 
Craig, J. K.: Aggregation on the edge: Effects of hypoxia avoidance on the spatial distribution of brown shrimp and demersal fishes in the northern Gulf of Mexico, Mar. Ecol. Prog. Ser., 445, 75–95, 2012. 
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Short summary
Seasonal patterns in nanophytoplankton and diatom biomass in the Gulf of Mexico were examined with an ocean–biogeochemical model. We found silica limitation of model diatom growth in the deep GoM and Mississippi delta. Zooplankton grazing and both transport and vertical mixing of biomass substantially influence the model phytoplankton biomass seasonality. We stress the need for integrated analyses of biologically and physically driven biomass fluxes to describe phytoplankton seasonal changes.
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