Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice

The Arctic Ocean is a bellwether for ocean acidification, yet few direct Arctic studies have been carried out and limited observations exist, especially in winter. We present unique under-ice physicochemical data showing the persistence of a mid water column area of high CO2 and low pH through late...

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Bibliographic Details
Main Authors: Lewis, Ceri N, Findlay, Helen S
Format: Dataset
Language:English
Published: PANGAEA 2013
Subjects:
Alkalinity
total
standard deviation
Animalia
Aragonite saturation state
Arctic
Arthropoda
Behaviour
Bicarbonate ion
Bottles or small containers/Aquaria (<20 L)
Calanus sp.
Calcite saturation state
Calculated using CO2SYS
Calculated using seacarb after Nisumaa et al. (2010)
Carbon
inorganic
dissolved
Carbonate ion
Carbonate system computation flag
Carbon dioxide
Coast and continental shelf
Coulometric titration
DATE/TIME
Deer_Bay_OA
EXP
Experiment
Fugacity of carbon dioxide (water) at sea surface temperature (wet air)
Heart beat rate
Laboratory experiment
LATITUDE
LONGITUDE
Mortality/Survival
OA-ICC
Ocean Acidification International Coordination Centre
Oithona similis
Partial pressure of carbon dioxide
Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)
Pelagos
pH
Arctic Ocean
Ocean acidification
Sea ice
Zooplankton
Copepods
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.835484
https://doi.org/10.1594/PANGAEA.835484
Description
Summary:The Arctic Ocean is a bellwether for ocean acidification, yet few direct Arctic studies have been carried out and limited observations exist, especially in winter. We present unique under-ice physicochemical data showing the persistence of a mid water column area of high CO2 and low pH through late winter, Zooplankton data demonstrating that the dominant copepod species are distributed across these different physicochemical conditions, and empirical data demonstrating that these copepods show sensitivity to pCO2 that parallels the range of natural pCO2 they experience through their daily vertical migration behavior. Our data, collected as part of the Catlin Arctic Survey, provide unique insight into the link between environmental variability, behavior, and an organism's physiological tolerance to CO2 in key Arctic biota.

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