Experiment: Metabolic shifts in the Antarctic fish Notothenia rossii in response to rising temperature and PCO2 ...

IntroductionOngoing ocean warming and acidification increasingly affect marine ecosystems, in particular around the Antarctic Peninsula. Yet little is known about the capability of Antarctic notothenioid fish to cope with rising temperature in acidifying seawater. While the whole animal level is exp...

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Bibliographic Details
Main Authors: Strobel, Anneli, Bennecke, Swaantje, Leo, Elettra, Mintenbeck, Katja, Pörtner, Hans-Otto, Mark, Felix Christopher
Format: Dataset
Language:English
Published: PANGAEA 2014
Subjects:
Species
Treatment temperature
Carbon dioxide
Length, total
Length, standard
Wet mass
Gender
Hepatosomatic index
Condition factor
Haematocrit
Lactate
Osmotic concentration
pH, extracellular
pH, intracellular
Respiration rate, oxygen
Multiple investigations
Jubany_Dallmann
Carlini/Jubany Station
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158
Antarctic
Antarctic Peninsula
Arctic
The Antarctic
Antarc*
Notothenia rossii
Sea ice
Online Access:https://dx.doi.org/10.1594/pangaea.829830
https://doi.pangaea.de/10.1594/PANGAEA.829830
Description
Summary:IntroductionOngoing ocean warming and acidification increasingly affect marine ecosystems, in particular around the Antarctic Peninsula. Yet little is known about the capability of Antarctic notothenioid fish to cope with rising temperature in acidifying seawater. While the whole animal level is expected to be more sensitive towards hypercapnia and temperature, the basis of thermal tolerance is set at the cellular level, with a putative key role for mitochondria. This study therefore investigates the physiological responses of the Antarctic Notothenia rossii after long-term acclimation to increased temperatures (7°C) and elevated PCO2 (0.2 kPa CO2) at different levels of physiological organisation.ResultsFor an integrated picture, we analysed the acclimation capacities of N. rossii by measuring routine metabolic rate (RMR), mitochondrial capacities (state III respiration) as well as intra- and extracellular acid-base status during acute thermal challenges and after long-term acclimation to changing ... : Supplement to: Strobel, Anneli; Bennecke, Swaantje; Leo, Elettra; Mintenbeck, Katja; Pörtner, Hans-Otto; Mark, Felix Christopher (2012): Metabolic shifts in the Antarctic fish Notothenia rossii in response to rising temperature and PCO2. Frontiers in Zoology, 9(1), 28 ...

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