It’s elemental, my dear watson : Validating seasonal patterns in otolith chemical chronologies
Accurate age data are essential for reliable fish stock assessment. Yet many stocks suffer from inconsistencies in age interpretation. A new approach to obtain age makes use of the chemical composition of otoliths. This study validates the periodicity of recurrent patterns in25 Mg,31 P,34 K,55 Mn,63...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Canadian Science Publishing, NRC Research Press
2021
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Online Access: | https://lup.lub.lu.se/record/b032172c-47b4-4a33-b3c8-50963a741f91 https://doi.org/10.1139/cjfas-2020-0388 |
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ftulundlup:oai:lup.lub.lu.se:b032172c-47b4-4a33-b3c8-50963a741f91 2023-05-15T16:19:14+02:00 It’s elemental, my dear watson : Validating seasonal patterns in otolith chemical chronologies Hüssy, Karin Krüger-Johnsen, Maria Thomsen, Tonny Bernt Heredia, Benjamin Dominguez Næraa, Tomas Limburg, Karin E. Heimbrand, Yvette McQueen, Kate Haase, Stefanie Krumme, Uwe Casini, Michele Mion, Monica Radtke, Krzysztof 2021 https://lup.lub.lu.se/record/b032172c-47b4-4a33-b3c8-50963a741f91 https://doi.org/10.1139/cjfas-2020-0388 eng eng Canadian Science Publishing, NRC Research Press https://lup.lub.lu.se/record/b032172c-47b4-4a33-b3c8-50963a741f91 http://dx.doi.org/10.1139/cjfas-2020-0388 scopus:85105505202 Canadian Journal of Fisheries and Aquatic Sciences; 78(5), pp 551-566 (2021) ISSN: 0706-652X Ecology contributiontojournal/article info:eu-repo/semantics/article text 2021 ftulundlup https://doi.org/10.1139/cjfas-2020-0388 2023-02-01T23:39:08Z Accurate age data are essential for reliable fish stock assessment. Yet many stocks suffer from inconsistencies in age interpretation. A new approach to obtain age makes use of the chemical composition of otoliths. This study validates the periodicity of recurrent patterns in25 Mg,31 P,34 K,55 Mn,63 Cu,64 Zn,66 Zn,85 Rb,88 Sr,138 Ba, and208 Pb in Baltic cod (Gadus morhua) otoliths from tag–recapture and known-age samples. Otolith P concentrations showed the highest consistency in seasonality over the years, with minima co-occurring with otolith winter zones in the known-age otoliths and in late winter – early spring when water temperatures are coldest in tagged cod . The timing of minima differs between stocks, occurring around February in western Baltic cod and 1 month later in eastern Baltic cod; seasonal maxima are also stock-specific, occurring in August and October, respectively. The amplitude in P is larger in faster-growing western compared with eastern Baltic cod. Seasonal patterns with minima in winter – late spring were also evident in Mg and Mn, but less consistent over time and fish size than P. Chronological patterns in P, and to a lesser extent Mg and Mn, may have the potential to supplement traditional age estimation or to guide the visual identification of translucent and opaque otolith patterns used in traditional age estimation. Article in Journal/Newspaper Gadus morhua Lund University Publications (LUP) Canadian Journal of Fisheries and Aquatic Sciences 78 5 551 566 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Ecology |
spellingShingle |
Ecology Hüssy, Karin Krüger-Johnsen, Maria Thomsen, Tonny Bernt Heredia, Benjamin Dominguez Næraa, Tomas Limburg, Karin E. Heimbrand, Yvette McQueen, Kate Haase, Stefanie Krumme, Uwe Casini, Michele Mion, Monica Radtke, Krzysztof It’s elemental, my dear watson : Validating seasonal patterns in otolith chemical chronologies |
topic_facet |
Ecology |
description |
Accurate age data are essential for reliable fish stock assessment. Yet many stocks suffer from inconsistencies in age interpretation. A new approach to obtain age makes use of the chemical composition of otoliths. This study validates the periodicity of recurrent patterns in25 Mg,31 P,34 K,55 Mn,63 Cu,64 Zn,66 Zn,85 Rb,88 Sr,138 Ba, and208 Pb in Baltic cod (Gadus morhua) otoliths from tag–recapture and known-age samples. Otolith P concentrations showed the highest consistency in seasonality over the years, with minima co-occurring with otolith winter zones in the known-age otoliths and in late winter – early spring when water temperatures are coldest in tagged cod . The timing of minima differs between stocks, occurring around February in western Baltic cod and 1 month later in eastern Baltic cod; seasonal maxima are also stock-specific, occurring in August and October, respectively. The amplitude in P is larger in faster-growing western compared with eastern Baltic cod. Seasonal patterns with minima in winter – late spring were also evident in Mg and Mn, but less consistent over time and fish size than P. Chronological patterns in P, and to a lesser extent Mg and Mn, may have the potential to supplement traditional age estimation or to guide the visual identification of translucent and opaque otolith patterns used in traditional age estimation. |
format |
Article in Journal/Newspaper |
author |
Hüssy, Karin Krüger-Johnsen, Maria Thomsen, Tonny Bernt Heredia, Benjamin Dominguez Næraa, Tomas Limburg, Karin E. Heimbrand, Yvette McQueen, Kate Haase, Stefanie Krumme, Uwe Casini, Michele Mion, Monica Radtke, Krzysztof |
author_facet |
Hüssy, Karin Krüger-Johnsen, Maria Thomsen, Tonny Bernt Heredia, Benjamin Dominguez Næraa, Tomas Limburg, Karin E. Heimbrand, Yvette McQueen, Kate Haase, Stefanie Krumme, Uwe Casini, Michele Mion, Monica Radtke, Krzysztof |
author_sort |
Hüssy, Karin |
title |
It’s elemental, my dear watson : Validating seasonal patterns in otolith chemical chronologies |
title_short |
It’s elemental, my dear watson : Validating seasonal patterns in otolith chemical chronologies |
title_full |
It’s elemental, my dear watson : Validating seasonal patterns in otolith chemical chronologies |
title_fullStr |
It’s elemental, my dear watson : Validating seasonal patterns in otolith chemical chronologies |
title_full_unstemmed |
It’s elemental, my dear watson : Validating seasonal patterns in otolith chemical chronologies |
title_sort |
it’s elemental, my dear watson : validating seasonal patterns in otolith chemical chronologies |
publisher |
Canadian Science Publishing, NRC Research Press |
publishDate |
2021 |
url |
https://lup.lub.lu.se/record/b032172c-47b4-4a33-b3c8-50963a741f91 https://doi.org/10.1139/cjfas-2020-0388 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences; 78(5), pp 551-566 (2021) ISSN: 0706-652X |
op_relation |
https://lup.lub.lu.se/record/b032172c-47b4-4a33-b3c8-50963a741f91 http://dx.doi.org/10.1139/cjfas-2020-0388 scopus:85105505202 |
op_doi |
https://doi.org/10.1139/cjfas-2020-0388 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
78 |
container_issue |
5 |
container_start_page |
551 |
op_container_end_page |
566 |
_version_ |
1766005584282255360 |