Prehistoric versus modern Baltic Sea cod fisheries: selectivity across the millennia
Combining Stone Age and modern data provides unique insights for management, extending beyond contemporary problems and shifting baselines. Using fish chronometric parts, we compared demographic characteristics of exploited cod populations from the Neolithic Period (4500 BP) to the modern highly exp...
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crroyalsociety:10.1098/rspb.2008.0711 2024-10-06T13:51:10+00:00 Prehistoric versus modern Baltic Sea cod fisheries: selectivity across the millennia Limburg, Karin E Walther, Yvonne Hong, Bongghi Olson, Carina Storå, Jan 2008 http://dx.doi.org/10.1098/rspb.2008.0711 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2008.0711 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2008.0711 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 275, issue 1652, page 2659-2665 ISSN 0962-8452 1471-2954 journal-article 2008 crroyalsociety https://doi.org/10.1098/rspb.2008.0711 2024-09-09T06:01:27Z Combining Stone Age and modern data provides unique insights for management, extending beyond contemporary problems and shifting baselines. Using fish chronometric parts, we compared demographic characteristics of exploited cod populations from the Neolithic Period (4500 BP) to the modern highly exploited fishery in the central Baltic Sea. We found that Neolithic cod were larger (mean 56.4 cm, 95% confidence interval (CI)±0.9) than modern fish (weighted mean length in catch =49.5±0.2 cm in 1995, 48.2±0.2 cm in 2003), and older (mean ages =4.7±0.11, 3.1±0.02 and 3.6±0.02 years for Neolithic, 1995, and 2003 fisheries, respectively). Fishery-independent surveys in 1995 and 2003 show that mean sizes in the stock are 16–17 cm smaller than reflected in the fishery, and mean ages approximately 1–1.5 years younger. Modelled von Bertalanffy growth and back-calculated lengths indicated that Neolithic cod grew to smaller asymptotic lengths, but were larger at younger ages, implying rapid early growth. Very small Neolithic cod were absent and large individuals were rare as in modern times. This could be owing to selective harvests, the absence of small and large fish in the area or a combination. Comparing modern and prehistoric times, fishery selection is evident, but apparently not as great as in the North Atlantic proper. Article in Journal/Newspaper North Atlantic The Royal Society Proceedings of the Royal Society B: Biological Sciences 275 1652 2659 2665 |
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crroyalsociety |
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English |
description |
Combining Stone Age and modern data provides unique insights for management, extending beyond contemporary problems and shifting baselines. Using fish chronometric parts, we compared demographic characteristics of exploited cod populations from the Neolithic Period (4500 BP) to the modern highly exploited fishery in the central Baltic Sea. We found that Neolithic cod were larger (mean 56.4 cm, 95% confidence interval (CI)±0.9) than modern fish (weighted mean length in catch =49.5±0.2 cm in 1995, 48.2±0.2 cm in 2003), and older (mean ages =4.7±0.11, 3.1±0.02 and 3.6±0.02 years for Neolithic, 1995, and 2003 fisheries, respectively). Fishery-independent surveys in 1995 and 2003 show that mean sizes in the stock are 16–17 cm smaller than reflected in the fishery, and mean ages approximately 1–1.5 years younger. Modelled von Bertalanffy growth and back-calculated lengths indicated that Neolithic cod grew to smaller asymptotic lengths, but were larger at younger ages, implying rapid early growth. Very small Neolithic cod were absent and large individuals were rare as in modern times. This could be owing to selective harvests, the absence of small and large fish in the area or a combination. Comparing modern and prehistoric times, fishery selection is evident, but apparently not as great as in the North Atlantic proper. |
format |
Article in Journal/Newspaper |
author |
Limburg, Karin E Walther, Yvonne Hong, Bongghi Olson, Carina Storå, Jan |
spellingShingle |
Limburg, Karin E Walther, Yvonne Hong, Bongghi Olson, Carina Storå, Jan Prehistoric versus modern Baltic Sea cod fisheries: selectivity across the millennia |
author_facet |
Limburg, Karin E Walther, Yvonne Hong, Bongghi Olson, Carina Storå, Jan |
author_sort |
Limburg, Karin E |
title |
Prehistoric versus modern Baltic Sea cod fisheries: selectivity across the millennia |
title_short |
Prehistoric versus modern Baltic Sea cod fisheries: selectivity across the millennia |
title_full |
Prehistoric versus modern Baltic Sea cod fisheries: selectivity across the millennia |
title_fullStr |
Prehistoric versus modern Baltic Sea cod fisheries: selectivity across the millennia |
title_full_unstemmed |
Prehistoric versus modern Baltic Sea cod fisheries: selectivity across the millennia |
title_sort |
prehistoric versus modern baltic sea cod fisheries: selectivity across the millennia |
publisher |
The Royal Society |
publishDate |
2008 |
url |
http://dx.doi.org/10.1098/rspb.2008.0711 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2008.0711 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2008.0711 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 275, issue 1652, page 2659-2665 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2008.0711 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
275 |
container_issue |
1652 |
container_start_page |
2659 |
op_container_end_page |
2665 |
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1812179363743924224 |