Relationship of otolith strontium-to-calcium ratios and salinity: experimental validation for juvenile salmonids
Analysis of otolith strontium (Sr) or strontium-to-calcium (Sr:Ca) ratios provides a powerful tool to reconstruct the chronology of migration among salinity environments for diadromous salmonids. Although use of this method has been validated by examination of known individuals and translocation exp...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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2005
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Online Access: | http://dx.doi.org/10.1139/f04-182 http://www.nrcresearchpress.com/doi/pdf/10.1139/f04-182 |
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crcansciencepubl:10.1139/f04-182 2024-10-06T13:46:41+00:00 Relationship of otolith strontium-to-calcium ratios and salinity: experimental validation for juvenile salmonids Zimmerman, Christian E 2005 http://dx.doi.org/10.1139/f04-182 http://www.nrcresearchpress.com/doi/pdf/10.1139/f04-182 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 62, issue 1, page 88-97 ISSN 0706-652X 1205-7533 journal-article 2005 crcansciencepubl https://doi.org/10.1139/f04-182 2024-09-12T04:13:26Z Analysis of otolith strontium (Sr) or strontium-to-calcium (Sr:Ca) ratios provides a powerful tool to reconstruct the chronology of migration among salinity environments for diadromous salmonids. Although use of this method has been validated by examination of known individuals and translocation experiments, it has never been validated under controlled experimental conditions. In this study, incorporation of otolith Sr was tested across a range of salinities and resulting levels of ambient Sr and Ca concentrations in juvenile chinook salmon (Oncorhynchus tshawytscha), coho salmon (Oncorhynchus kisutch), sockeye salmon (Oncorhynchus nerka), rainbow trout (Onco rhynchus mykiss), and Arctic char (Salvelinus alpinus). Experimental water was mixed, using stream water and seawater as end members, to create experimental salinities of 0.1, 6.3, 12.7, 18.6, 25.5, and 33.0 psu. Otolith Sr and Sr:Ca ratios were significantly related to salinity for all species (r 2 range: 0.800.91) but provide only enough predictive resolution to discriminate among fresh water, brackish water, and saltwater residency. These results validate the use of otolith Sr:Ca ratios to broadly discriminate salinity histories encountered by salmonids but highlight the need for further research concerning the influence of osmoregulation and physiological changes associated with smolting on otolith microchemistry. Article in Journal/Newspaper Arctic Salvelinus alpinus Canadian Science Publishing Arctic Sockeye ENVELOPE(-130.143,-130.143,54.160,54.160) Canadian Journal of Fisheries and Aquatic Sciences 62 1 88 97 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Analysis of otolith strontium (Sr) or strontium-to-calcium (Sr:Ca) ratios provides a powerful tool to reconstruct the chronology of migration among salinity environments for diadromous salmonids. Although use of this method has been validated by examination of known individuals and translocation experiments, it has never been validated under controlled experimental conditions. In this study, incorporation of otolith Sr was tested across a range of salinities and resulting levels of ambient Sr and Ca concentrations in juvenile chinook salmon (Oncorhynchus tshawytscha), coho salmon (Oncorhynchus kisutch), sockeye salmon (Oncorhynchus nerka), rainbow trout (Onco rhynchus mykiss), and Arctic char (Salvelinus alpinus). Experimental water was mixed, using stream water and seawater as end members, to create experimental salinities of 0.1, 6.3, 12.7, 18.6, 25.5, and 33.0 psu. Otolith Sr and Sr:Ca ratios were significantly related to salinity for all species (r 2 range: 0.800.91) but provide only enough predictive resolution to discriminate among fresh water, brackish water, and saltwater residency. These results validate the use of otolith Sr:Ca ratios to broadly discriminate salinity histories encountered by salmonids but highlight the need for further research concerning the influence of osmoregulation and physiological changes associated with smolting on otolith microchemistry. |
format |
Article in Journal/Newspaper |
author |
Zimmerman, Christian E |
spellingShingle |
Zimmerman, Christian E Relationship of otolith strontium-to-calcium ratios and salinity: experimental validation for juvenile salmonids |
author_facet |
Zimmerman, Christian E |
author_sort |
Zimmerman, Christian E |
title |
Relationship of otolith strontium-to-calcium ratios and salinity: experimental validation for juvenile salmonids |
title_short |
Relationship of otolith strontium-to-calcium ratios and salinity: experimental validation for juvenile salmonids |
title_full |
Relationship of otolith strontium-to-calcium ratios and salinity: experimental validation for juvenile salmonids |
title_fullStr |
Relationship of otolith strontium-to-calcium ratios and salinity: experimental validation for juvenile salmonids |
title_full_unstemmed |
Relationship of otolith strontium-to-calcium ratios and salinity: experimental validation for juvenile salmonids |
title_sort |
relationship of otolith strontium-to-calcium ratios and salinity: experimental validation for juvenile salmonids |
publisher |
Canadian Science Publishing |
publishDate |
2005 |
url |
http://dx.doi.org/10.1139/f04-182 http://www.nrcresearchpress.com/doi/pdf/10.1139/f04-182 |
long_lat |
ENVELOPE(-130.143,-130.143,54.160,54.160) |
geographic |
Arctic Sockeye |
geographic_facet |
Arctic Sockeye |
genre |
Arctic Salvelinus alpinus |
genre_facet |
Arctic Salvelinus alpinus |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 62, issue 1, page 88-97 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f04-182 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
62 |
container_issue |
1 |
container_start_page |
88 |
op_container_end_page |
97 |
_version_ |
1812174997131624448 |