Recovery in eastern Baltic cod: is increased recruitment caused by decreased predation on early life stages?
Cod (Gadus morhua) recruitment in the eastern Baltic Sea is influenced by predation on early life stages by sprat (Sprattus sprattus) and herring (Clupea harengus), which is considered as one of the mechanisms preventing cod recovery in the 1990s. In the light of improved cod recruitment in the seco...
Published in: | ICES Journal of Marine Science |
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2014
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ftopenagrar:oai:www.openagrar.de:timport_mods_00029919 2023-05-15T16:19:08+02:00 Recovery in eastern Baltic cod: is increased recruitment caused by decreased predation on early life stages? Neumann, Viola Köster, Friedrich-W. Schaber, Matthias Eero, Margit 2014 10 https://doi.org/10.1093/icesjms/fsu112 https://www.openagrar.de/receive/timport_mods_00029919 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00029919/dn053601.pdf eng eng ICES journal of marine science : journal du Conseil -- ICES J Mar Sci -- 1054-3139 -- 29056-7 https://doi.org/10.1093/icesjms/fsu112 https://www.openagrar.de/receive/timport_mods_00029919 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00029919/dn053601.pdf only signed in user info:eu-repo/semantics/openAccess Text Baltic Sea clupeids cod eggs diet composition predator–prey overlap article Text 2014 ftopenagrar https://doi.org/10.1093/icesjms/fsu112 2023-03-06T00:05:36Z Cod (Gadus morhua) recruitment in the eastern Baltic Sea is influenced by predation on early life stages by sprat (Sprattus sprattus) and herring (Clupea harengus), which is considered as one of the mechanisms preventing cod recovery in the 1990s. In the light of improved cod recruitment in the second half of the 2000s, new analyses of stomach content of sprat and herring were conducted, to elucidate the contribution of changes in predation pressure on cod recruitment. Comparison of stomach contents of sprat and herring in 2004–2008 with data from the 1990s showed a similar diet composition in the two periods; however, changes were found in the ichthyoplankton abundance and composition in the diet, indicating reduced predation pressure on cod eggs in the most recent period. The abundance of cod eggs in the field, availability of other prey, and horizontal and vertical overlap between predator and prey were investigated as potential factors influencing cod egg predation. Article in Journal/Newspaper Gadus morhua OpenAgrar (OA) ICES Journal of Marine Science 71 6 1382 1392 |
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Open Polar |
collection |
OpenAgrar (OA) |
op_collection_id |
ftopenagrar |
language |
English |
topic |
Text Baltic Sea clupeids cod eggs diet composition predator–prey overlap |
spellingShingle |
Text Baltic Sea clupeids cod eggs diet composition predator–prey overlap Neumann, Viola Köster, Friedrich-W. Schaber, Matthias Eero, Margit Recovery in eastern Baltic cod: is increased recruitment caused by decreased predation on early life stages? |
topic_facet |
Text Baltic Sea clupeids cod eggs diet composition predator–prey overlap |
description |
Cod (Gadus morhua) recruitment in the eastern Baltic Sea is influenced by predation on early life stages by sprat (Sprattus sprattus) and herring (Clupea harengus), which is considered as one of the mechanisms preventing cod recovery in the 1990s. In the light of improved cod recruitment in the second half of the 2000s, new analyses of stomach content of sprat and herring were conducted, to elucidate the contribution of changes in predation pressure on cod recruitment. Comparison of stomach contents of sprat and herring in 2004–2008 with data from the 1990s showed a similar diet composition in the two periods; however, changes were found in the ichthyoplankton abundance and composition in the diet, indicating reduced predation pressure on cod eggs in the most recent period. The abundance of cod eggs in the field, availability of other prey, and horizontal and vertical overlap between predator and prey were investigated as potential factors influencing cod egg predation. |
format |
Article in Journal/Newspaper |
author |
Neumann, Viola Köster, Friedrich-W. Schaber, Matthias Eero, Margit |
author_facet |
Neumann, Viola Köster, Friedrich-W. Schaber, Matthias Eero, Margit |
author_sort |
Neumann, Viola |
title |
Recovery in eastern Baltic cod: is increased recruitment caused by decreased predation on early life stages? |
title_short |
Recovery in eastern Baltic cod: is increased recruitment caused by decreased predation on early life stages? |
title_full |
Recovery in eastern Baltic cod: is increased recruitment caused by decreased predation on early life stages? |
title_fullStr |
Recovery in eastern Baltic cod: is increased recruitment caused by decreased predation on early life stages? |
title_full_unstemmed |
Recovery in eastern Baltic cod: is increased recruitment caused by decreased predation on early life stages? |
title_sort |
recovery in eastern baltic cod: is increased recruitment caused by decreased predation on early life stages? |
publishDate |
2014 |
url |
https://doi.org/10.1093/icesjms/fsu112 https://www.openagrar.de/receive/timport_mods_00029919 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00029919/dn053601.pdf |
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/10.1093/icesjms/fsu112 https://www.openagrar.de/receive/timport_mods_00029919 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00029919/dn053601.pdf |
op_rights |
only signed in user info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/icesjms/fsu112 |
container_title |
ICES Journal of Marine Science |
container_volume |
71 |
container_issue |
6 |
container_start_page |
1382 |
op_container_end_page |
1392 |
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1766005461236056064 |