Articles | Volume 18, issue 9
Research article
12 May 2021
Research article |  | 12 May 2021

Zooplankton mortality effects on the plankton community of the northern Humboldt Current System: sensitivity of a regional biogeochemical model

Mariana Hill Cruz, Iris Kriest, Yonss Saranga José, Rainer Kiko, Helena Hauss, and Andreas Oschlies

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Cited articles

Alheit, J. and Niquen, M.: Regime shifts in the Humboldt Current ecosystem, Prog. Oceanogr., 60, 201–222,, 2004. a, b, c, d
Allgeier, J. E., Burkepile, D. E., and Layman, C. A.: Animal pee in the sea: consumer-mediated nutrient dynamics in the world's changing oceans, Glob. Change Biol., 23, 2166–2178,, 2017. a
Anderson, T. R., Gentleman, W. C., and Sinha, B.: Influence of grazing formulations on the emergent properties of a complex ecosystem model in a global ocean general circulation model, 3rd GLOBEC OSM: From ecosystem function to ecosystem prediction, Prog. Oceanogr., 87, 201–213,, 2010. a
Archibald, K. M., Siegel, D. A., and Doney, S. C.: Modeling the Impact of Zooplankton Diel Vertical Migration on the Carbon Export Flux of the Biological Pump, Global Biogeochem. Cy., 33, 181–199,, 2019. a
Arhonditsis, G. B. and Brett, M. T.: Evaluation of the current state of mechanistic aquatic biogeochemical modeling, Mar. Ecol. Prog. Ser., 271, 13–26,, 2004. a
Short summary
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.
Final-revised paper