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Seawater carbonate chemistry and condition factor,haematocrit and plasma [Cl-],acute upper thermal tolerance and hypoxia tolerance of pink salmon

Pacific salmon stocks are in decline with climate change named as a contributing factor. The North Pacific coast of British Columbia is characterized by strong temporal and spatial heterogeneity in ocean conditions with upwelling events elevating CO2 levels up to 10-fold those of pre-industrial global averages. Early life stages of pink salmon have been shown to be affected by these CO2 levels, and juveniles naturally migrate through regions of high CO2 during the energetically costly phase of smoltification. To investigate the physiological response of out-migrating wild juvenile pink salmon to these naturally occurring elevated CO2 levels, we captured fish in Georgia Strait, British Columbia and transported them to a marine lab (Hakai Institute, Quadra Island) where fish were exposed to one of three CO2 levels (850, 1500 and 2000 μatm CO2) for 2 weeks. At 1/2, 1 and 2 weeks of exposure, we measured their weight and length to calculate condition factor (Fulton's K), as well as haematocrit and plasma [Cl-]. At each of these times, two additional stressors were imposed (hypoxia and temperature) to provide further insight into their physiological condition. Juvenile pink salmon were largely robust to elevated CO2 concentrations up to 2000 μatm CO2, with no mortality or change in condition factor over the 2-week exposure duration. After 1 week of exposure, temperature and hypoxia tolerance were significantly reduced in high CO2, an effect that did not persist to 2 weeks of exposure. Haematocrit was increased by 20% after 2 weeks in the CO2 treatments relative to the initial measurements, while plasma [Cl-] was not significantly different. Taken together, these data indicate that juvenile pink salmon are quite resilient to naturally occurring high CO2 levels during their ocean outmigration.

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Frommel, Andrea Y, Carless, Justin, Hunt, Brian P V, Brauner, Colin J (2020). Dataset: Seawater carbonate chemistry and condition factor,haematocrit and plasma [Cl-],acute upper thermal tolerance and hypoxia tolerance of pink salmon. https://doi.org/10.1594/PANGAEA.931339

DOI retrieved: 2020

Additional Info

Field Value
Imported on November 29, 2024
Last update November 30, 2024
License CC-BY-4.0
Source https://doi.org/10.1594/PANGAEA.931339
Author Frommel, Andrea Y
Given Name Andrea Y
Family Name Frommel
More Authors
Carless, Justin
Hunt, Brian P V
Brauner, Colin J
Source Creation 2020
Publication Year 2020
Resource Type text/tab-separated-values - filename: Frommel-etal_2021_CP
Subject Areas
Name: BiologicalClassification

Name: Biosphere

Name: Chemistry

Name: Ecology

Related Identifiers
Title: Physiological resilience of pink salmon to naturally occurring ocean acidification
Identifier: https://doi.org/10.1093/conphys/coaa059
Type: DOI
Relation: References
Year: 2020
Source: Conservation Physiology
Authors: Frommel Andrea Y , Carless Justin , Hunt Brian P V , Brauner Colin J , Gattuso Jean-Pierre , Epitalon Jean-Marie , Lavigne Héloïse , Orr James .

Title: seacarb: seawater carbonate chemistry with R. R package version 3.2.16
Identifier: https://cran.r-project.org/web/packages/seacarb/index.html
Type: DOI
Relation: References
Year: 2021
Authors: Frommel Andrea Y , Carless Justin , Hunt Brian P V , Brauner Colin J , Gattuso Jean-Pierre , Epitalon Jean-Marie , Lavigne Héloïse , Orr James .