TY - JOUR

T1 - The effect of changes in temperature and food on the development of Calanus finmarchicus and Calanus helgolandicus populations

A1 - Møller,Eva Friis

A1 - Maar,Marie

A1 - Jonasdottir,Sigrun

A1 - Nielsen,Torkel Gissel

A1 - Tönnesson,K.

AU - Møller,Eva Friis

AU - Maar,Marie

AU - Jonasdottir,Sigrun

AU - Nielsen,Torkel Gissel

AU - Tönnesson,K.

PB - American Society of Limnology and Oceanography, Inc.

PY - 2012

Y1 - 2012

N2 - 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

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

U2 - 10.4319/lo.2012.57.1.0000

DO - 10.4319/lo.2012.57.1.0000

JO - Limnology and Oceanography

JF - Limnology and Oceanography

SN - 0024-3590

IS - 1

VL - 57

SP - 211

EP - 220

ER -