Species-Specific Responses of Juvenile Rockfish to Elevated pCO2: From Behavior to Genomics
In the California Current ecosystem, global climate change is predicted to trigger large-scale changes in ocean chemistry within this century. Ocean acidification-which occurs when increased levels of atmospheric CO2 dissolve into the ocean-is one of the biggest potential threats to marine life. In...
Main Authors: | , , , , , , , , , |
---|---|
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
eScholarship, University of California
2017
|
Subjects: | |
Online Access: | https://escholarship.org/uc/item/9b49221r |
id |
ftcdlib:oai:escholarship.org:ark:/13030/qt9b49221r |
---|---|
record_format |
openpolar |
spelling |
ftcdlib:oai:escholarship.org:ark:/13030/qt9b49221r 2024-04-21T08:09:46+00:00 Species-Specific Responses of Juvenile Rockfish to Elevated pCO2: From Behavior to Genomics Hamilton, Scott L Logan, Cheryl A Fennie, Hamilton W Sogard, Susan M Barry, James P Makukhov, April D Tobosa, Lauren R Boyer, Kirsten Lovera, Christopher F Bernardi, Giacomo Dam, Hans G e0169670 2017-01-01 application/pdf https://escholarship.org/uc/item/9b49221r unknown eScholarship, University of California qt9b49221r https://escholarship.org/uc/item/9b49221r public PLOS ONE, vol 12, iss 1 Biological Sciences Ecology Genetics Life Below Water Climate Action Animals Behavior Animal Carbon Dioxide Genomics Perciformes Principal Component Analysis Transcription Factors General Science & Technology article 2017 ftcdlib 2024-03-27T15:38:09Z In the California Current ecosystem, global climate change is predicted to trigger large-scale changes in ocean chemistry within this century. Ocean acidification-which occurs when increased levels of atmospheric CO2 dissolve into the ocean-is one of the biggest potential threats to marine life. In a coastal upwelling system, we compared the effects of chronic exposure to low pH (elevated pCO2) at four treatment levels (i.e., pCO2 = ambient [500], moderate [750], high [1900], and extreme [2800 μatm]) on behavior, physiology, and patterns of gene expression in white muscle tissue of juvenile rockfish (genus Sebastes), integrating responses from the transcriptome to the whole organism level. Experiments were conducted simultaneously on two closely related species that both inhabit kelp forests, yet differ in early life history traits, to compare high-CO2 tolerance among species. Our findings indicate that these congeners express different sensitivities to elevated CO2 levels. Copper rockfish (S. caurinus) exhibited changes in behavioral lateralization, reduced critical swimming speed, depressed aerobic scope, changes in metabolic enzyme activity, and increases in the expression of transcription factors and regulatory genes at high pCO2 exposure. Blue rockfish (S. mystinus), in contrast, showed no significant changes in behavior, swimming physiology, or aerobic capacity, but did exhibit significant changes in the expression of muscle structural genes as a function of pCO2, indicating acclimatization potential. The capacity of long-lived, late to mature, commercially important fish to acclimatize and adapt to changing ocean chemistry over the next 50-100 years is likely dependent on species-specific physiological tolerances. Article in Journal/Newspaper Ocean acidification University of California: eScholarship |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Biological Sciences Ecology Genetics Life Below Water Climate Action Animals Behavior Animal Carbon Dioxide Genomics Perciformes Principal Component Analysis Transcription Factors General Science & Technology |
spellingShingle |
Biological Sciences Ecology Genetics Life Below Water Climate Action Animals Behavior Animal Carbon Dioxide Genomics Perciformes Principal Component Analysis Transcription Factors General Science & Technology Hamilton, Scott L Logan, Cheryl A Fennie, Hamilton W Sogard, Susan M Barry, James P Makukhov, April D Tobosa, Lauren R Boyer, Kirsten Lovera, Christopher F Bernardi, Giacomo Species-Specific Responses of Juvenile Rockfish to Elevated pCO2: From Behavior to Genomics |
topic_facet |
Biological Sciences Ecology Genetics Life Below Water Climate Action Animals Behavior Animal Carbon Dioxide Genomics Perciformes Principal Component Analysis Transcription Factors General Science & Technology |
description |
In the California Current ecosystem, global climate change is predicted to trigger large-scale changes in ocean chemistry within this century. Ocean acidification-which occurs when increased levels of atmospheric CO2 dissolve into the ocean-is one of the biggest potential threats to marine life. In a coastal upwelling system, we compared the effects of chronic exposure to low pH (elevated pCO2) at four treatment levels (i.e., pCO2 = ambient [500], moderate [750], high [1900], and extreme [2800 μatm]) on behavior, physiology, and patterns of gene expression in white muscle tissue of juvenile rockfish (genus Sebastes), integrating responses from the transcriptome to the whole organism level. Experiments were conducted simultaneously on two closely related species that both inhabit kelp forests, yet differ in early life history traits, to compare high-CO2 tolerance among species. Our findings indicate that these congeners express different sensitivities to elevated CO2 levels. Copper rockfish (S. caurinus) exhibited changes in behavioral lateralization, reduced critical swimming speed, depressed aerobic scope, changes in metabolic enzyme activity, and increases in the expression of transcription factors and regulatory genes at high pCO2 exposure. Blue rockfish (S. mystinus), in contrast, showed no significant changes in behavior, swimming physiology, or aerobic capacity, but did exhibit significant changes in the expression of muscle structural genes as a function of pCO2, indicating acclimatization potential. The capacity of long-lived, late to mature, commercially important fish to acclimatize and adapt to changing ocean chemistry over the next 50-100 years is likely dependent on species-specific physiological tolerances. |
author2 |
Dam, Hans G |
format |
Article in Journal/Newspaper |
author |
Hamilton, Scott L Logan, Cheryl A Fennie, Hamilton W Sogard, Susan M Barry, James P Makukhov, April D Tobosa, Lauren R Boyer, Kirsten Lovera, Christopher F Bernardi, Giacomo |
author_facet |
Hamilton, Scott L Logan, Cheryl A Fennie, Hamilton W Sogard, Susan M Barry, James P Makukhov, April D Tobosa, Lauren R Boyer, Kirsten Lovera, Christopher F Bernardi, Giacomo |
author_sort |
Hamilton, Scott L |
title |
Species-Specific Responses of Juvenile Rockfish to Elevated pCO2: From Behavior to Genomics |
title_short |
Species-Specific Responses of Juvenile Rockfish to Elevated pCO2: From Behavior to Genomics |
title_full |
Species-Specific Responses of Juvenile Rockfish to Elevated pCO2: From Behavior to Genomics |
title_fullStr |
Species-Specific Responses of Juvenile Rockfish to Elevated pCO2: From Behavior to Genomics |
title_full_unstemmed |
Species-Specific Responses of Juvenile Rockfish to Elevated pCO2: From Behavior to Genomics |
title_sort |
species-specific responses of juvenile rockfish to elevated pco2: from behavior to genomics |
publisher |
eScholarship, University of California |
publishDate |
2017 |
url |
https://escholarship.org/uc/item/9b49221r |
op_coverage |
e0169670 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
PLOS ONE, vol 12, iss 1 |
op_relation |
qt9b49221r https://escholarship.org/uc/item/9b49221r |
op_rights |
public |
_version_ |
1796950980487544832 |