Food for thought : Eastern Baltic cod in distress: biological changes and challenges for stock assessment
The eastern Baltic (EB) cod (Gadus morhua) stock was depleted and overexploited for decades until the mid-2000s, when fishing mortality rapidly declined and biomass started to increase, as shown by stock assessments. These positive developments were partly assigned to effective management measures,...
Published in: | ICES Journal of Marine Science |
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ftopenagrar:oai:www.openagrar.de:timport_mods_00029928 2024-09-15T18:07:20+00:00 Food for thought : Eastern Baltic cod in distress: biological changes and challenges for stock assessment Eero, Margit Hjelm, Joakim Behrens, Jane Buchmann, Kurt Cardinale, Massimiliano Casini, Michele Gasyukov, Pavel Holmgren, Noel Horbowy, Jan Hüssy, Karin Kirkegaard, Eskild Kornilovs, Georgs Krumme, Uwe Köster, Friedrich-W. Oeberst, Rainer Plikshs, Maris Radtke, Krzysztof Raid, Tiit Schmidt, Jörn Oliver Zimmermann, Christopher 2015 6 https://doi.org/10.1093/icesjms/fsv109 https://www.openagrar.de/receive/timport_mods_00029928 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00029928/dn055269.pdf http://icesjms.oxfordjournals.org/content/early/2015/06/07/icesjms.fsv109 eng eng ICES journal of marine science : journal du Conseil -- ICES J Mar Sci -- 1054-3139 -- 29056-7 https://doi.org/DOI:10.1093/icesjms/fsv109 https://www.openagrar.de/receive/timport_mods_00029928 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00029928/dn055269.pdf http://icesjms.oxfordjournals.org/content/early/2015/06/07/icesjms.fsv109 only signed in user info:eu-repo/semantics/restrictedAccess article Text data quality eastern Baltic cod ecosystem understanding stock assessment article Text doc-type:article 2015 ftopenagrar https://doi.org/10.1093/icesjms/fsv109 2024-07-08T23:56:24Z The eastern Baltic (EB) cod (Gadus morhua) stock was depleted and overexploited for decades until the mid-2000s, when fishing mortality rapidly declined and biomass started to increase, as shown by stock assessments. These positive developments were partly assigned to effective management measures, and the EB cod was considered one of the most successful stock recoveries in recent times. In contrast to this optimistic view, the analytical stock assessment failed in 2014, leaving the present stock status unclear. Deteriorated quality of some basic input data for stock assessment in combination with changes in environmental and ecological conditions has led to an unusual situation for cod in the Baltic Sea, which poses new challenges for stock assessment and management advice.Anumber of adverse developments such as low nutritional condition and disappearance of larger individuals indicate that the stock is in distress. In this study, we (i) summarize the knowledge of recent changes in cod biology and ecosystem conditions, (ii) describe the subsequent challenges for stock assessment, and (iii) highlight the key questions where answers are urgently needed to understand the present stock status and provide scientifically solid support for cod management in the Baltic Sea. Article in Journal/Newspaper Gadus morhua OpenAgrar (OA) ICES Journal of Marine Science 72 8 2180 2186 |
institution |
Open Polar |
collection |
OpenAgrar (OA) |
op_collection_id |
ftopenagrar |
language |
English |
topic |
article Text data quality eastern Baltic cod ecosystem understanding stock assessment |
spellingShingle |
article Text data quality eastern Baltic cod ecosystem understanding stock assessment Eero, Margit Hjelm, Joakim Behrens, Jane Buchmann, Kurt Cardinale, Massimiliano Casini, Michele Gasyukov, Pavel Holmgren, Noel Horbowy, Jan Hüssy, Karin Kirkegaard, Eskild Kornilovs, Georgs Krumme, Uwe Köster, Friedrich-W. Oeberst, Rainer Plikshs, Maris Radtke, Krzysztof Raid, Tiit Schmidt, Jörn Oliver Zimmermann, Christopher Food for thought : Eastern Baltic cod in distress: biological changes and challenges for stock assessment |
topic_facet |
article Text data quality eastern Baltic cod ecosystem understanding stock assessment |
description |
The eastern Baltic (EB) cod (Gadus morhua) stock was depleted and overexploited for decades until the mid-2000s, when fishing mortality rapidly declined and biomass started to increase, as shown by stock assessments. These positive developments were partly assigned to effective management measures, and the EB cod was considered one of the most successful stock recoveries in recent times. In contrast to this optimistic view, the analytical stock assessment failed in 2014, leaving the present stock status unclear. Deteriorated quality of some basic input data for stock assessment in combination with changes in environmental and ecological conditions has led to an unusual situation for cod in the Baltic Sea, which poses new challenges for stock assessment and management advice.Anumber of adverse developments such as low nutritional condition and disappearance of larger individuals indicate that the stock is in distress. In this study, we (i) summarize the knowledge of recent changes in cod biology and ecosystem conditions, (ii) describe the subsequent challenges for stock assessment, and (iii) highlight the key questions where answers are urgently needed to understand the present stock status and provide scientifically solid support for cod management in the Baltic Sea. |
format |
Article in Journal/Newspaper |
author |
Eero, Margit Hjelm, Joakim Behrens, Jane Buchmann, Kurt Cardinale, Massimiliano Casini, Michele Gasyukov, Pavel Holmgren, Noel Horbowy, Jan Hüssy, Karin Kirkegaard, Eskild Kornilovs, Georgs Krumme, Uwe Köster, Friedrich-W. Oeberst, Rainer Plikshs, Maris Radtke, Krzysztof Raid, Tiit Schmidt, Jörn Oliver Zimmermann, Christopher |
author_facet |
Eero, Margit Hjelm, Joakim Behrens, Jane Buchmann, Kurt Cardinale, Massimiliano Casini, Michele Gasyukov, Pavel Holmgren, Noel Horbowy, Jan Hüssy, Karin Kirkegaard, Eskild Kornilovs, Georgs Krumme, Uwe Köster, Friedrich-W. Oeberst, Rainer Plikshs, Maris Radtke, Krzysztof Raid, Tiit Schmidt, Jörn Oliver Zimmermann, Christopher |
author_sort |
Eero, Margit |
title |
Food for thought : Eastern Baltic cod in distress: biological changes and challenges for stock assessment |
title_short |
Food for thought : Eastern Baltic cod in distress: biological changes and challenges for stock assessment |
title_full |
Food for thought : Eastern Baltic cod in distress: biological changes and challenges for stock assessment |
title_fullStr |
Food for thought : Eastern Baltic cod in distress: biological changes and challenges for stock assessment |
title_full_unstemmed |
Food for thought : Eastern Baltic cod in distress: biological changes and challenges for stock assessment |
title_sort |
food for thought : eastern baltic cod in distress: biological changes and challenges for stock assessment |
publishDate |
2015 |
url |
https://doi.org/10.1093/icesjms/fsv109 https://www.openagrar.de/receive/timport_mods_00029928 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00029928/dn055269.pdf http://icesjms.oxfordjournals.org/content/early/2015/06/07/icesjms.fsv109 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_relation |
ICES journal of marine science : journal du Conseil -- ICES J Mar Sci -- 1054-3139 -- 29056-7 https://doi.org/DOI:10.1093/icesjms/fsv109 https://www.openagrar.de/receive/timport_mods_00029928 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00029928/dn055269.pdf http://icesjms.oxfordjournals.org/content/early/2015/06/07/icesjms.fsv109 |
op_rights |
only signed in user info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1093/icesjms/fsv109 |
container_title |
ICES Journal of Marine Science |
container_volume |
72 |
container_issue |
8 |
container_start_page |
2180 |
op_container_end_page |
2186 |
_version_ |
1810444708027039744 |