Suitability of otolith microchemistry for stock separation of Baltic cod
Microchemical otolith analyses have been shown to provide valuable information on the life history, dispersal and stock characteristics of teleost fish. In the present study, the suitability of this technique for identifying the origin and distribution of Atlantic cod Gadus morhua L. from the Baltic...
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ftopenagrar:oai:www.openagrar.de:timport_mods_00013803 2024-09-15T17:55:34+00:00 Suitability of otolith microchemistry for stock separation of Baltic cod Heidemann, Franziska Marohn, Lasse Hinrichsen, Hans-Harald Huwer, Bastian Hüssy, Karin Klügel, Andreas Böttcher, Uwe Hanel, Reinhold 2012 9 https://doi.org/10.3354/meps09922 https://www.openagrar.de/receive/timport_mods_00013803 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00013803/dn050863.pdf eng eng Marine ecology progress series -- Mar Ecol Prog Ser MEPS -- 1616-1599 -- 0171-8630 -- 2022265-8 -- 800780-9 https://doi.org/10.3354/meps09922 https://www.openagrar.de/receive/timport_mods_00013803 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00013803/dn050863.pdf only signed in user info:eu-repo/semantics/restrictedAccess article Text Gadus morhua Stock discrimination Baltic Sea Otolith microchemistry article Text doc-type:article 2012 ftopenagrar https://doi.org/10.3354/meps09922 2024-07-08T23:56:24Z Microchemical otolith analyses have been shown to provide valuable information on the life history, dispersal and stock characteristics of teleost fish. In the present study, the suitability of this technique for identifying the origin and distribution of Atlantic cod Gadus morhua L. from the Baltic Sea was examined using laser ablation-ICPMS. The capacity to distinguish individuals from different Baltic Sea stocks and from the adjacent North Sea stock based on incoporation of stock-specific elemental fingerprints along otolith growth axes was investigated. It was further tested if different origins led to spawning-site specific element concentrations in otolith cores. The results indicate that microchemical analyses of Baltic cod otoliths are applicable for differentiating individuals of different stocks. Analyses of similarities including 12 element/calcium ratios resulted in significant differences between individuals from the eastern and the western Baltic Sea and between North Sea and Baltic Sea samples. Sr/Ca, Ba/Ca, Y/Ca, Mg/Ca, Zr/Ca and Mn/Ca ratios had the strongest discriminatory power. A further separation of individuals caught in 3 different spawning grounds of the eastern Baltic, however, was not possible. Elemental compositions from the core regions of otoliths from young of the year cod caught in eastern and western Baltic Sea spawning grounds showed significant differences in Sr/Ca, Ba/Ca and Mg/Ca concentrations. Analyses of similarities again showed significant differences between these areas for juveniles. This study demonstrates the potential of otolith microchemical analyses to provide important information about the stock structure and connectivity of G. morhua in the Baltic Sea Article in Journal/Newspaper atlantic cod Gadus morhua OpenAgrar (OA) Marine Ecology Progress Series 465 217 226 |
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Open Polar |
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OpenAgrar (OA) |
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ftopenagrar |
language |
English |
topic |
article Text Gadus morhua Stock discrimination Baltic Sea Otolith microchemistry |
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article Text Gadus morhua Stock discrimination Baltic Sea Otolith microchemistry Heidemann, Franziska Marohn, Lasse Hinrichsen, Hans-Harald Huwer, Bastian Hüssy, Karin Klügel, Andreas Böttcher, Uwe Hanel, Reinhold Suitability of otolith microchemistry for stock separation of Baltic cod |
topic_facet |
article Text Gadus morhua Stock discrimination Baltic Sea Otolith microchemistry |
description |
Microchemical otolith analyses have been shown to provide valuable information on the life history, dispersal and stock characteristics of teleost fish. In the present study, the suitability of this technique for identifying the origin and distribution of Atlantic cod Gadus morhua L. from the Baltic Sea was examined using laser ablation-ICPMS. The capacity to distinguish individuals from different Baltic Sea stocks and from the adjacent North Sea stock based on incoporation of stock-specific elemental fingerprints along otolith growth axes was investigated. It was further tested if different origins led to spawning-site specific element concentrations in otolith cores. The results indicate that microchemical analyses of Baltic cod otoliths are applicable for differentiating individuals of different stocks. Analyses of similarities including 12 element/calcium ratios resulted in significant differences between individuals from the eastern and the western Baltic Sea and between North Sea and Baltic Sea samples. Sr/Ca, Ba/Ca, Y/Ca, Mg/Ca, Zr/Ca and Mn/Ca ratios had the strongest discriminatory power. A further separation of individuals caught in 3 different spawning grounds of the eastern Baltic, however, was not possible. Elemental compositions from the core regions of otoliths from young of the year cod caught in eastern and western Baltic Sea spawning grounds showed significant differences in Sr/Ca, Ba/Ca and Mg/Ca concentrations. Analyses of similarities again showed significant differences between these areas for juveniles. This study demonstrates the potential of otolith microchemical analyses to provide important information about the stock structure and connectivity of G. morhua in the Baltic Sea |
format |
Article in Journal/Newspaper |
author |
Heidemann, Franziska Marohn, Lasse Hinrichsen, Hans-Harald Huwer, Bastian Hüssy, Karin Klügel, Andreas Böttcher, Uwe Hanel, Reinhold |
author_facet |
Heidemann, Franziska Marohn, Lasse Hinrichsen, Hans-Harald Huwer, Bastian Hüssy, Karin Klügel, Andreas Böttcher, Uwe Hanel, Reinhold |
author_sort |
Heidemann, Franziska |
title |
Suitability of otolith microchemistry for stock separation of Baltic cod |
title_short |
Suitability of otolith microchemistry for stock separation of Baltic cod |
title_full |
Suitability of otolith microchemistry for stock separation of Baltic cod |
title_fullStr |
Suitability of otolith microchemistry for stock separation of Baltic cod |
title_full_unstemmed |
Suitability of otolith microchemistry for stock separation of Baltic cod |
title_sort |
suitability of otolith microchemistry for stock separation of baltic cod |
publishDate |
2012 |
url |
https://doi.org/10.3354/meps09922 https://www.openagrar.de/receive/timport_mods_00013803 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00013803/dn050863.pdf |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
Marine ecology progress series -- Mar Ecol Prog Ser MEPS -- 1616-1599 -- 0171-8630 -- 2022265-8 -- 800780-9 https://doi.org/10.3354/meps09922 https://www.openagrar.de/receive/timport_mods_00013803 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00013803/dn050863.pdf |
op_rights |
only signed in user info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.3354/meps09922 |
container_title |
Marine Ecology Progress Series |
container_volume |
465 |
container_start_page |
217 |
op_container_end_page |
226 |
_version_ |
1810431833190432768 |