Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, Germany There has been considerable debate recently, how temperature affects nutritional demands and food selectivity in poikilotherms. Here, we will use the results of the studies published to date on the interactions between changing environmental conditions and grazer nutritional demands to assess the potential consequences of changes in environmental conditions on the interaction between zooplankton and their prey. Complex reactions to temperature change have been reported in the literature and by ourselves, and here we will assess the potential consequences of these reactions for seasonal and spatial distributions of zooplankton and their prey. Our analysis suggests that changes in phenology of zooplankton, which currently are largely attributed to changes in water temperature may need a more elaborate explanation.

Primary Presenter: Maarten Boersma, Alfred-Wegener-Institut (AWI) (maarten.boersma@awi.de)

Authors:

Cecilia Laspoumaderes, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung  (claspoumaderes@comahue-conicet.gob.ar)

Karen Wiltshire, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung  (karen.wiltshire@awi.de)

Inga Kirstein, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung  (inga.kirstein@awi.de)

Areti Balkoni, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung  (areti.balkoni@awi.de)

Cédric Meunier, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung  (cedric.meunier@awi.de)