Juvenile Atlantic cod behavior appears robust to near-future CO2 levels

Abstract Background Ocean acidification caused by the anthropogenic release of CO 2 is considered a major threat to marine ecosystems. One unexpected impact of elevated water CO 2 levels is that behavioral alterations may occur in tropical reef fish and certain temperate fish species. These effects...

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Main Authors: Jutfelt, Fredrik, Hedgärde, Maria
Format: Other/Unknown Material
Language:English
Published: BioMed Central Ltd. 2015
Subjects:
Online Access:http://www.frontiersinzoology.com/content/12/1/11
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spelling ftbiomed:oai:biomedcentral.com:s12983-015-0104-2 2023-05-15T15:27:04+02:00 Juvenile Atlantic cod behavior appears robust to near-future CO2 levels Jutfelt, Fredrik Hedgärde, Maria 2015-05-23 http://www.frontiersinzoology.com/content/12/1/11 en eng BioMed Central Ltd. http://www.frontiersinzoology.com/content/12/1/11 Copyright 2015 Jutfelt and Hedgärde; licensee BioMed Central. Carbon dioxide Teleost Climate change Boldness Lateralization Behavior Gadus morhua Ocean acidification Research 2015 ftbiomed 2015-05-23T23:56:59Z Abstract Background Ocean acidification caused by the anthropogenic release of CO 2 is considered a major threat to marine ecosystems. One unexpected impact of elevated water CO 2 levels is that behavioral alterations may occur in tropical reef fish and certain temperate fish species. These effects appear to alter many different types of sensory and cognitive functions; if widespread and persistent, they have the potential to cause ecosystem changes. Methods We investigated whether economically and ecologically important Atlantic cod also display behavioral abnormalities by exposing 52 juvenile cod to control conditions (500 μatm, duplicate tanks) or an end-of-the-century ocean acidification scenario (1000 μatm, duplicate tanks) for one month, during which time the fish were examined for a range of behaviors that have been reported to be affected by elevated CO 2 in other fish. The behaviors were swimming activity, as measured by number of lines crossed per minute, the emergence from shelter, determined by how long it took the fish to exit a shelter after a disturbance, relative lateralization (a measure of behavioral turning side preference), and absolute lateralization (the strength of behavioral symmetry). Results We found no effect of CO 2 treatment on any of the four behaviors tested: activity (F = 1.61, p = 0.33), emergence from shelter (F = 0.13, p = 0.76), relative lateralization (F = 2.82, p = 0.50), and absolute lateralization (F = 0.80, p = 0.26). Conclusion Our results indicate that the behavior of Atlantic cod could be resilient to the impacts of near-future levels of water CO 2 . Other/Unknown Material atlantic cod Gadus morhua Ocean acidification BioMed Central
institution Open Polar
collection BioMed Central
op_collection_id ftbiomed
language English
topic Carbon dioxide
Teleost
Climate change
Boldness
Lateralization
Behavior
Gadus morhua
Ocean acidification
spellingShingle Carbon dioxide
Teleost
Climate change
Boldness
Lateralization
Behavior
Gadus morhua
Ocean acidification
Jutfelt, Fredrik
Hedgärde, Maria
Juvenile Atlantic cod behavior appears robust to near-future CO2 levels
topic_facet Carbon dioxide
Teleost
Climate change
Boldness
Lateralization
Behavior
Gadus morhua
Ocean acidification
description Abstract Background Ocean acidification caused by the anthropogenic release of CO 2 is considered a major threat to marine ecosystems. One unexpected impact of elevated water CO 2 levels is that behavioral alterations may occur in tropical reef fish and certain temperate fish species. These effects appear to alter many different types of sensory and cognitive functions; if widespread and persistent, they have the potential to cause ecosystem changes. Methods We investigated whether economically and ecologically important Atlantic cod also display behavioral abnormalities by exposing 52 juvenile cod to control conditions (500 μatm, duplicate tanks) or an end-of-the-century ocean acidification scenario (1000 μatm, duplicate tanks) for one month, during which time the fish were examined for a range of behaviors that have been reported to be affected by elevated CO 2 in other fish. The behaviors were swimming activity, as measured by number of lines crossed per minute, the emergence from shelter, determined by how long it took the fish to exit a shelter after a disturbance, relative lateralization (a measure of behavioral turning side preference), and absolute lateralization (the strength of behavioral symmetry). Results We found no effect of CO 2 treatment on any of the four behaviors tested: activity (F = 1.61, p = 0.33), emergence from shelter (F = 0.13, p = 0.76), relative lateralization (F = 2.82, p = 0.50), and absolute lateralization (F = 0.80, p = 0.26). Conclusion Our results indicate that the behavior of Atlantic cod could be resilient to the impacts of near-future levels of water CO 2 .
format Other/Unknown Material
author Jutfelt, Fredrik
Hedgärde, Maria
author_facet Jutfelt, Fredrik
Hedgärde, Maria
author_sort Jutfelt, Fredrik
title Juvenile Atlantic cod behavior appears robust to near-future CO2 levels
title_short Juvenile Atlantic cod behavior appears robust to near-future CO2 levels
title_full Juvenile Atlantic cod behavior appears robust to near-future CO2 levels
title_fullStr Juvenile Atlantic cod behavior appears robust to near-future CO2 levels
title_full_unstemmed Juvenile Atlantic cod behavior appears robust to near-future CO2 levels
title_sort juvenile atlantic cod behavior appears robust to near-future co2 levels
publisher BioMed Central Ltd.
publishDate 2015
url http://www.frontiersinzoology.com/content/12/1/11
genre atlantic cod
Gadus morhua
Ocean acidification
genre_facet atlantic cod
Gadus morhua
Ocean acidification
op_relation http://www.frontiersinzoology.com/content/12/1/11
op_rights Copyright 2015 Jutfelt and Hedgärde; licensee BioMed Central.
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