A model-based evaluation of Marine Protected Areas: the example of eastern Baltic cod (Gadus morhua callarias L.)
The eastern Baltic cod stock collapsed as a consequence of climate-driven adverse hydrographic conditions and over fishing and has remained at historically low levels. Spatio-temporal fishing closures [Marine Protected Areas (MPAs)] have been implemented since 1995, to protect and restore the spawni...
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ftarchimer:oai:archimer.ifremer.fr:6094 2023-05-15T16:19:12+02:00 A model-based evaluation of Marine Protected Areas: the example of eastern Baltic cod (Gadus morhua callarias L.) Kraus, Gerd Pelletier, Dominique Dubreuil, Julien Moellmann, Christian Hinrichsen, Hans-harald Bastardie, Francois Vermard, Youen Mahevas, Stephanie 2009 application/pdf https://archimer.ifremer.fr/doc/2009/publication-6094.pdf https://doi.org/10.1093/icesjms/fsn166 https://archimer.ifremer.fr/doc/00000/6094/ eng eng Oxford university press https://archimer.ifremer.fr/doc/2009/publication-6094.pdf doi:10.1093/icesjms/fsn166 https://archimer.ifremer.fr/doc/00000/6094/ 2008 ICES/CIEM info:eu-repo/semantics/openAccess restricted use ICES Journal of Marine Science (1054-3139) (Oxford university press), 2009 , Vol. 66 , N. 1 , P. 109-121 Stock recovery Model Marine Protected Areas Fishery management Baltic cod text Publication info:eu-repo/semantics/article 2009 ftarchimer https://doi.org/10.1093/icesjms/fsn166 2021-09-23T20:16:59Z The eastern Baltic cod stock collapsed as a consequence of climate-driven adverse hydrographic conditions and over fishing and has remained at historically low levels. Spatio-temporal fishing closures [Marine Protected Areas (MPAs)] have been implemented since 1995, to protect and restore the spawning stock. However, no signs of recovery have been observed yet, either suggesting that MPAs are an inappropriate management measure or pointing towards suboptimal closure design. We used the spatially explicit fishery simulation model ISIS-Fish to evaluate proposed and implemented fishery closures, combining an age-structured population module with a multifleet exploitation module and a management module in a single model environment. The model is parameterized based on (i) the large amount of biological knowledge available for cod and (ii) an analysis of existing spatially disaggregated fishery data. As the population dynamics of eastern Baltic cod depend strongly on the climate-driven hydrographic regime, we considered two production regimes of the stock. MPAs were only effective for stock recovery when they reduced overall fishing effort. The performance of MPAs needs to be evaluated relative to environmental regimes, especially for stocks facing strong environmental variability. Article in Journal/Newspaper Gadus morhua Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) ICES Journal of Marine Science 66 1 109 121 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Stock recovery Model Marine Protected Areas Fishery management Baltic cod |
spellingShingle |
Stock recovery Model Marine Protected Areas Fishery management Baltic cod Kraus, Gerd Pelletier, Dominique Dubreuil, Julien Moellmann, Christian Hinrichsen, Hans-harald Bastardie, Francois Vermard, Youen Mahevas, Stephanie A model-based evaluation of Marine Protected Areas: the example of eastern Baltic cod (Gadus morhua callarias L.) |
topic_facet |
Stock recovery Model Marine Protected Areas Fishery management Baltic cod |
description |
The eastern Baltic cod stock collapsed as a consequence of climate-driven adverse hydrographic conditions and over fishing and has remained at historically low levels. Spatio-temporal fishing closures [Marine Protected Areas (MPAs)] have been implemented since 1995, to protect and restore the spawning stock. However, no signs of recovery have been observed yet, either suggesting that MPAs are an inappropriate management measure or pointing towards suboptimal closure design. We used the spatially explicit fishery simulation model ISIS-Fish to evaluate proposed and implemented fishery closures, combining an age-structured population module with a multifleet exploitation module and a management module in a single model environment. The model is parameterized based on (i) the large amount of biological knowledge available for cod and (ii) an analysis of existing spatially disaggregated fishery data. As the population dynamics of eastern Baltic cod depend strongly on the climate-driven hydrographic regime, we considered two production regimes of the stock. MPAs were only effective for stock recovery when they reduced overall fishing effort. The performance of MPAs needs to be evaluated relative to environmental regimes, especially for stocks facing strong environmental variability. |
format |
Article in Journal/Newspaper |
author |
Kraus, Gerd Pelletier, Dominique Dubreuil, Julien Moellmann, Christian Hinrichsen, Hans-harald Bastardie, Francois Vermard, Youen Mahevas, Stephanie |
author_facet |
Kraus, Gerd Pelletier, Dominique Dubreuil, Julien Moellmann, Christian Hinrichsen, Hans-harald Bastardie, Francois Vermard, Youen Mahevas, Stephanie |
author_sort |
Kraus, Gerd |
title |
A model-based evaluation of Marine Protected Areas: the example of eastern Baltic cod (Gadus morhua callarias L.) |
title_short |
A model-based evaluation of Marine Protected Areas: the example of eastern Baltic cod (Gadus morhua callarias L.) |
title_full |
A model-based evaluation of Marine Protected Areas: the example of eastern Baltic cod (Gadus morhua callarias L.) |
title_fullStr |
A model-based evaluation of Marine Protected Areas: the example of eastern Baltic cod (Gadus morhua callarias L.) |
title_full_unstemmed |
A model-based evaluation of Marine Protected Areas: the example of eastern Baltic cod (Gadus morhua callarias L.) |
title_sort |
model-based evaluation of marine protected areas: the example of eastern baltic cod (gadus morhua callarias l.) |
publisher |
Oxford university press |
publishDate |
2009 |
url |
https://archimer.ifremer.fr/doc/2009/publication-6094.pdf https://doi.org/10.1093/icesjms/fsn166 https://archimer.ifremer.fr/doc/00000/6094/ |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
ICES Journal of Marine Science (1054-3139) (Oxford university press), 2009 , Vol. 66 , N. 1 , P. 109-121 |
op_relation |
https://archimer.ifremer.fr/doc/2009/publication-6094.pdf doi:10.1093/icesjms/fsn166 https://archimer.ifremer.fr/doc/00000/6094/ |
op_rights |
2008 ICES/CIEM info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1093/icesjms/fsn166 |
container_title |
ICES Journal of Marine Science |
container_volume |
66 |
container_issue |
1 |
container_start_page |
109 |
op_container_end_page |
121 |
_version_ |
1766005553240211456 |