FN Archimer Export Format PT J TI The effect of changes in temperature and food on the development of Calanus finmarchicus and Calanus helgolandicus populations BT AF FRiis Møller, Eva maar, marie Jónasdóttir, Sigrún H. Nielsen, Torkel Gissel Tönnesson, Kajsa AS 1:1;2:1;3:2;4:2;5:3; FF 1:;2:;3:;4:;5:; C1 Department of Bioscience, Aarhus University, Roskilde, Denmark National Institute of Aquatic Resources, Section for Ocean Ecology and Climate, Technical University of Denmark, Charlottenlund, Denmark Department of Marine Ecology - Göteborg, University of Gothenburg, Göteborg, Sweden C2 UNIV AARHUS, DENMARK UNIV TECH DENMARK (DTU AQUA), DENMARK UNIV GOTHENBURG, SWEDEN IF 3.41 TC 51 UR https://archimer.ifremer.fr/doc/00058/16931/14412.pdf LA English DT Article AB We studied the response in development times of Calanus finmarchicus and Calanus helgolandicus to changes in temperature and food conditions. Grazing experiments were performed at different temperatures for both species, and the results were implemented in a stage-resolved zooplankton population model that predicted development times from biomass increments controlled by ingestion and metabolic losses. Predictions were validated against development data from the literature, and show that C. finmarchicus develops faster than C. helgolandicus below 11°C and slower above. The different relative development rates of the species are related to different temperature responses in ingestion rates. A temperature increase of 1°C to 2°C may have consequences for the relative contribution of C. helgolandicus and C. finmarchicus to the copepod community, and both seasonal and spatial displacements of the Calanus populations can be expected under climate change. PY 2012 SO Limnology and oceanography SN 0024-3590 PU ASLO VL 57 IS 1 UT 000298321300018 BP 211 EP 220 DI 10.4319/lo.2012.57.1.0211 ID 16931 ER EF