Effects on Scope for Growth due to elevated carbon dioxide in the copepod Calanus finmarchicus
Cohorts of the keystone copepod species Calanus finmarchicus exposed to simulated
ocean acidification environments were followed during the course of two consecutive
generations. The time of development into the different molting stages were monitored.
While the more moderate CO2 concentration(1080 ppm) did not seem to affect the development
rate, a slower development into molting stages were found in the highest
exposure groups (2080 - 3080 ppm CO2). Measurements of oxygen consumption and
feeding rate in sub adult individuals (copepodite stage C5) were integrated into calculations
of the overall energy balance (Scope for Growth) of the animals. Together with
biometric measurements that were performed these results points to an energy depletion
due chronic exposure of elevated CO2 as has been predicted for the future. This stage
of Calanus finmarchicus seems to be tolerant to a more moderate CO2 elevation (1080
ppm) over the time frame of this study.
Place, publisher, year, edition, pages
Institutt for biologi , 2013. , 80 p.
IdentifiersURN: urn:nbn:no:ntnu:diva-21607Local ID: ntnudaim:10235OAI: oai:DiVA.org:ntnu-21607DiVA: diva2:640174
Pedersen, Sindre Andre, Forsker