Enzyme activities of digestive and metabolic enzymes of Calanus finmarchicus from Maria S. Merian cruise MSM26 in spring 2013

The present study aimed to contribute to the knowledge on the intraspecific variations of enzyme activities in populations of Calanus finmarchicus from different longitudes across the North Atlantic Ocean and their relation to changing environmental conditions. C. finmarchicus was sampled across the...

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Bibliographic Details
Main Authors: Schmithüsen, Tosia, Niehoff, Barbara, Auel, Holger
Format: Dataset
Language:English
Published: PANGAEA 2014
Subjects:
Basin Scale Analysis
Synthesis and Integration
EURO-BASIN
Irminger Basin
Calanus finmarchicus
Iceland
North Atlantic
Copepods
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.835181
https://doi.org/10.1594/PANGAEA.835181
Description
Summary:The present study aimed to contribute to the knowledge on the intraspecific variations of enzyme activities in populations of Calanus finmarchicus from different longitudes across the North Atlantic Ocean and their relation to changing environmental conditions. C. finmarchicus was sampled across the North Atlantic in basins with decreasing temperature regimes from east to west (Iceland Basin, Irminger Basin and Labrador Basin) in late March/early April 2013. Potential maximum enzyme activities of digestive (proteinases and lipases/esterases) and metabolic (citrate synthase) enzymes of copepods from all sampling stations were analysed and thermal profiles (5-50°C) of enzyme activities were determined. In order to investigate its acclimation potential, C. finmarchicus were acclimated to 4°C and 15°C for two weeks and thermal profiles of enzyme activities were compared afterwards.

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