Environmentally mediated trends in otolith composition of juvenile Atlantic cod (Gadus morhua)
Abstract We evaluated the influence of environmental exposure of juvenile Atlantic cod (Gadus morhua) to inform interpretations of natal origins and movement patterns using otolith geochemistry. Laboratory rearing experiments were conducted with a variety of temperature (∼5, 8.5, and 12°C) and salin...
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Oxford University Press (OUP)
2015
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsv070 http://academic.oup.com/icesjms/article-pdf/72/8/2350/31226109/fsv070.pdf |
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croxfordunivpr:10.1093/icesjms/fsv070 2024-09-30T14:32:08+00:00 Environmentally mediated trends in otolith composition of juvenile Atlantic cod (Gadus morhua) Stanley, Ryan R. E. Bradbury, Ian R. DiBacco, Claudio Snelgrove, Paul V. R. Thorrold, Simon R. Killen, Shaun S. 2015 http://dx.doi.org/10.1093/icesjms/fsv070 http://academic.oup.com/icesjms/article-pdf/72/8/2350/31226109/fsv070.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 72, issue 8, page 2350-2363 ISSN 1095-9289 1054-3139 journal-article 2015 croxfordunivpr https://doi.org/10.1093/icesjms/fsv070 2024-09-17T04:30:54Z Abstract We evaluated the influence of environmental exposure of juvenile Atlantic cod (Gadus morhua) to inform interpretations of natal origins and movement patterns using otolith geochemistry. Laboratory rearing experiments were conducted with a variety of temperature (∼5, 8.5, and 12°C) and salinity (∼25, 28.5, and 32 PSU) combinations. We measured magnesium (Mg), manganese (Mn), strontium (Sr), and barium (Ba), expressed as a ratio to calcium (Ca), using laser ablation inductively coupled plasma mass spectrometry (ICP-MS), and stable carbon (δ13C) and oxygen (δ18O) isotopes using isotope ratio monitoring mass spectrometry. Temperature and salinity significantly affected all elements and isotopes measured, except salinity on Mg:Ca. We detected significant interactions among temperature and salinity for Mn:Ca and Ba:Ca partition coefficients (ratio of otolith chemistry to water chemistry), with significant temperature effects only detected in the 32 and 28.5 PSU salinity treatments. Similarly, we detected a significant interaction between temperature and salinity in incorporation of δ13C, with a significant temperature effect except at intermediate salinity. These results support the contention that environmental mediation of otolith composition varies among species, thus limiting the ability of generalized models to infer life history patterns from chemistry. Our results provide essential baseline information detailing environmental influence on juvenile Atlantic cod otolith composition, punctuating the importance of laboratory validations to translate species-specific otolith composition when inferring in situ life histories and movements. Article in Journal/Newspaper atlantic cod Gadus morhua Oxford University Press ICES Journal of Marine Science 72 8 2350 2363 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract We evaluated the influence of environmental exposure of juvenile Atlantic cod (Gadus morhua) to inform interpretations of natal origins and movement patterns using otolith geochemistry. Laboratory rearing experiments were conducted with a variety of temperature (∼5, 8.5, and 12°C) and salinity (∼25, 28.5, and 32 PSU) combinations. We measured magnesium (Mg), manganese (Mn), strontium (Sr), and barium (Ba), expressed as a ratio to calcium (Ca), using laser ablation inductively coupled plasma mass spectrometry (ICP-MS), and stable carbon (δ13C) and oxygen (δ18O) isotopes using isotope ratio monitoring mass spectrometry. Temperature and salinity significantly affected all elements and isotopes measured, except salinity on Mg:Ca. We detected significant interactions among temperature and salinity for Mn:Ca and Ba:Ca partition coefficients (ratio of otolith chemistry to water chemistry), with significant temperature effects only detected in the 32 and 28.5 PSU salinity treatments. Similarly, we detected a significant interaction between temperature and salinity in incorporation of δ13C, with a significant temperature effect except at intermediate salinity. These results support the contention that environmental mediation of otolith composition varies among species, thus limiting the ability of generalized models to infer life history patterns from chemistry. Our results provide essential baseline information detailing environmental influence on juvenile Atlantic cod otolith composition, punctuating the importance of laboratory validations to translate species-specific otolith composition when inferring in situ life histories and movements. |
format |
Article in Journal/Newspaper |
author |
Stanley, Ryan R. E. Bradbury, Ian R. DiBacco, Claudio Snelgrove, Paul V. R. Thorrold, Simon R. Killen, Shaun S. |
spellingShingle |
Stanley, Ryan R. E. Bradbury, Ian R. DiBacco, Claudio Snelgrove, Paul V. R. Thorrold, Simon R. Killen, Shaun S. Environmentally mediated trends in otolith composition of juvenile Atlantic cod (Gadus morhua) |
author_facet |
Stanley, Ryan R. E. Bradbury, Ian R. DiBacco, Claudio Snelgrove, Paul V. R. Thorrold, Simon R. Killen, Shaun S. |
author_sort |
Stanley, Ryan R. E. |
title |
Environmentally mediated trends in otolith composition of juvenile Atlantic cod (Gadus morhua) |
title_short |
Environmentally mediated trends in otolith composition of juvenile Atlantic cod (Gadus morhua) |
title_full |
Environmentally mediated trends in otolith composition of juvenile Atlantic cod (Gadus morhua) |
title_fullStr |
Environmentally mediated trends in otolith composition of juvenile Atlantic cod (Gadus morhua) |
title_full_unstemmed |
Environmentally mediated trends in otolith composition of juvenile Atlantic cod (Gadus morhua) |
title_sort |
environmentally mediated trends in otolith composition of juvenile atlantic cod (gadus morhua) |
publisher |
Oxford University Press (OUP) |
publishDate |
2015 |
url |
http://dx.doi.org/10.1093/icesjms/fsv070 http://academic.oup.com/icesjms/article-pdf/72/8/2350/31226109/fsv070.pdf |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
ICES Journal of Marine Science volume 72, issue 8, page 2350-2363 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fsv070 |
container_title |
ICES Journal of Marine Science |
container_volume |
72 |
container_issue |
8 |
container_start_page |
2350 |
op_container_end_page |
2363 |
_version_ |
1811636383358386176 |