Dr. Anna Schukat
Trophodynamics and energetics of meso-zooplankton species and their adaptations to the environment.
- Population dynamics
- Migratory behaviour
- Metabolic rates and energy-store patterns
- feeding behaviours and diet compositions
- Carbon and nitrogen budgets of species and populations
Collaborative Project CUSCO (Coastal Upwelling System in a Changing Ocean)
Sub project: Structure of the pelagic food web, trophic interactions and the role of meso- and macrozooplankton for trophic transfer efficiency in the Humboldt Upwelling System off Peru
The major aim of this project is to establish, which processes and mechanisms determine the trophic transfer efficiency (TTE) of the Humboldt Upwelling System (HUS) off Peru. The Humboldt Current in the Southeast Pacific is the most productive and commercially most important upwelling system worldwide. Although the four major coastal upwelling systems have a similar primary production, the HUS provides five to ten times higher fisheries yields per unit area than other systems. In order to elucidate the high productivity at the upper trophic levels, the BreMarE team of the University of Bremen investigates the role of meso- and macrozooplankton (especially copepods and euphausiids) in the food web. We aim at identifying and quantifying important predator-prey relationships of zooplankton taxa (e.g., as consumers of phytoplankton or prey for pelagic fish) and analyse the general structure and complexity of the pelagic food web, which greatly influences the TTE. We focus on structural differences in the zooplankton community and on the length of the food chain by analysing trophic interactions and tracing carbon and energy fluxes through the marine food web.
Schukat A (2012). Trophic interactions and energetics of key components in the Benguela Current Ecosystem: The role of calanoid copepods and pelagic decapods. elib University of Bremen.
|Ekau W, Auel H, Hagen W, Koppelmann R, Wasmund N, Bohata K, Buchholz F, Geist S, Martin B, Schukat A, Verheye HM, Werner T (2018) Pelagic key species and mechanisms driving energy flows in the northern Benguela upwelling ecosystem and their feedback into biogeochemical cycles. J Mar Syst 188, 49-62.|
|Bode M, Hagen W, Schukat A, Teuber L, Fonseca-Batista D, Dehairs F, Auel H (2015) Feeding strategies of tropical and subtropical calanoid copepods throughout the eastern Atlantic Ocean –latitudinal and bathymetric aspects. Prog Oceanogr 138, 268-282.|
|Geist SJ, Kunzmann A, Verheye HM, Eggert A, Schukat A, Ekau W (2014) Distribution, feeding behavior and condition of Cape horse mackerel early life stages, Trachurus capensis, under different environmental conditions in the northern Benguela upwelling ecosystem. ICES J Mar Sci 72(2), 543-557.|
Schukat A, Auel H, Teuber L, Lahajnar N, Hagen W (2014) Complex trophic interactions of calanoid copepods in the Benguela upwelling system. J Sea Res 85, 186-196.
|Teuber L, Schukat A, Hagen W, Auel H (2014) Trophic interactions and life strategies of epi- to bathypelagic calanoid copepods in the tropical Atlantic Ocean. J Plankton Res 36(4), 1109–1123.|
Bode M, Schukat A, Hagen W, Auel H (2013) Predicting metabolic rates of calanoid copepods. J
Exp Mar Biol Ecol 444, 1-7.
|Schukat A, Bode M, Auel H, Carballo R, Martin B, Koppelmann R, Hagen W (2013) Pelagic decapods in the northern Benguela upwelling system: Distribution, ecophysiology and contribution to active carbon flux. Deep-Sea Res I 75, 146-156.|
|Schukat A, Teuber L, Hagen W, Wasmund N, Auel H (2013) Energetics and carbon budgets of dominant calanoid copepods in the northern Benguela upwelling system. J Exp Mar Biol Ecol 442, 1-9.|
|Teuber L, Schukat A, Hagen W, Auel H (2013) Distribution and ecophysiology of calanoid copepods in relation to the oxygen minimum zone in the Eastern Tropical Atlantic. PLoS ONE 8(11): e77590.|
|Geist S, Schukat A, Werner T (2012) Environmental changes in the pelagic: consequences and acclimatization strategies - from plankton to fish. In: Wiedling J, Einsporn M (eds). Proceedings ofYOUMARES 3: Between Space and Seafloor - aqua vita est, YOUMARES 3, Lübeck, German Society for Marine Research, 88 p.|