Effects of multispecies and density-dependent factors on MSY reference points: example of the Baltic Sea sprat
In this paper, maximum sustainable yield (MSY) parameters for the Baltic Sea sprat (Sprattus sprattus) are estimated in relation to pressure from cod (Gadus morhua) predation and the influence of density dependence on sprat growth. This study is based on long-term deterministic and stochastic simula...
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crcansciencepubl:10.1139/cjfas-2016-0220 2023-12-17T10:30:23+01:00 Effects of multispecies and density-dependent factors on MSY reference points: example of the Baltic Sea sprat Horbowy, Jan Luzeńczyk, Anna 2017 http://dx.doi.org/10.1139/cjfas-2016-0220 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2016-0220 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2016-0220 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 74, issue 6, page 864-870 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2017 crcansciencepubl https://doi.org/10.1139/cjfas-2016-0220 2023-11-19T13:39:03Z In this paper, maximum sustainable yield (MSY) parameters for the Baltic Sea sprat (Sprattus sprattus) are estimated in relation to pressure from cod (Gadus morhua) predation and the influence of density dependence on sprat growth. This study is based on long-term deterministic and stochastic simulations in which sprat density-dependent growth and predation mortality are considered. The resultant model is a relatively simple tool that allows for streamlined analyses of problems typically approached using complex multispecies models. The analysis indicates that estimates of the MSY parameters (i.e., MSY and F MSY ) and equilibrium biomass differ significantly between approaches that hold growth and natural mortality constant and those that allow for density-dependent growth and natural mortality. Based on the cod biomass observed in the 1980s, the MSY parameters estimated by a model that accounts for density-dependent growth and by a model assuming constant growth may differ by a factor of 2. As such, the MSY parameters decline (approximately linearly) with the size of the cod stock. Article in Journal/Newspaper Gadus morhua Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 74 6 864 870 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Horbowy, Jan Luzeńczyk, Anna Effects of multispecies and density-dependent factors on MSY reference points: example of the Baltic Sea sprat |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
In this paper, maximum sustainable yield (MSY) parameters for the Baltic Sea sprat (Sprattus sprattus) are estimated in relation to pressure from cod (Gadus morhua) predation and the influence of density dependence on sprat growth. This study is based on long-term deterministic and stochastic simulations in which sprat density-dependent growth and predation mortality are considered. The resultant model is a relatively simple tool that allows for streamlined analyses of problems typically approached using complex multispecies models. The analysis indicates that estimates of the MSY parameters (i.e., MSY and F MSY ) and equilibrium biomass differ significantly between approaches that hold growth and natural mortality constant and those that allow for density-dependent growth and natural mortality. Based on the cod biomass observed in the 1980s, the MSY parameters estimated by a model that accounts for density-dependent growth and by a model assuming constant growth may differ by a factor of 2. As such, the MSY parameters decline (approximately linearly) with the size of the cod stock. |
format |
Article in Journal/Newspaper |
author |
Horbowy, Jan Luzeńczyk, Anna |
author_facet |
Horbowy, Jan Luzeńczyk, Anna |
author_sort |
Horbowy, Jan |
title |
Effects of multispecies and density-dependent factors on MSY reference points: example of the Baltic Sea sprat |
title_short |
Effects of multispecies and density-dependent factors on MSY reference points: example of the Baltic Sea sprat |
title_full |
Effects of multispecies and density-dependent factors on MSY reference points: example of the Baltic Sea sprat |
title_fullStr |
Effects of multispecies and density-dependent factors on MSY reference points: example of the Baltic Sea sprat |
title_full_unstemmed |
Effects of multispecies and density-dependent factors on MSY reference points: example of the Baltic Sea sprat |
title_sort |
effects of multispecies and density-dependent factors on msy reference points: example of the baltic sea sprat |
publisher |
Canadian Science Publishing |
publishDate |
2017 |
url |
http://dx.doi.org/10.1139/cjfas-2016-0220 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2016-0220 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2016-0220 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 74, issue 6, page 864-870 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2016-0220 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
74 |
container_issue |
6 |
container_start_page |
864 |
op_container_end_page |
870 |
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1785583345176936448 |