Fish, seabirds and trophic cascades in the Baltic Sea
In the relatively simple Baltic Sea ecosystem, zooplankton-feeding sprat Sprattus sprattus is a major food source for breeding seabirds and piscivorous fish, and an important resource for commercial fisheries. Large-scale and long-term ecosystem changes resulting mainly from over fishing and recruit...
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Online Access: | http://hdl.handle.net/11585/721735 https://doi.org/10.3354/meps323233 |
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ftunibolognairis:oai:cris.unibo.it:11585/721735 2024-04-14T08:10:28+00:00 Fish, seabirds and trophic cascades in the Baltic Sea Österblom H Casini M Olsson O Bignert A Österblom H Casini M Olsson O Bignert A 2006 STAMPA http://hdl.handle.net/11585/721735 https://doi.org/10.3354/meps323233 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000241921700021 volume:323 firstpage:233 lastpage:238 numberofpages:6 journal:MARINE ECOLOGY PROGRESS SERIES http://hdl.handle.net/11585/721735 doi:10.3354/meps323233 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-33750607750 Cod · Baltic Sea · Fisheries management · Gadus morhua · Common guillemot · Sprat · Sprattus sprattus · Trophic cascade · Uria aalge · Junk-food hypothesis info:eu-repo/semantics/article 2006 ftunibolognairis https://doi.org/10.3354/meps323233 2024-03-21T18:13:50Z In the relatively simple Baltic Sea ecosystem, zooplankton-feeding sprat Sprattus sprattus is a major food source for breeding seabirds and piscivorous fish, and an important resource for commercial fisheries. Large-scale and long-term ecosystem changes resulting mainly from over fishing and recruitment failure of cod Gadus morhua, which is the main fish predator of sprat, have affected natural-history patterns in a piscivorous seabird, the common guillemot Uria aalge, in a complex way. As the sprat stock increased, leading to lower energy content of fish, common guillemot chick body mass at fledging decreased. However, chick fledging body mass recovered in recent years as the sprat stock diminished, which brought about corresponding increases in sprat weight-at-age and energy content. The cod and sprat fishery affect the common guillemots in the Baltic Sea, but the effects differ depending on the management strategy Article in Journal/Newspaper common guillemot Gadus morhua Uria aalge uria IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) Marine Ecology Progress Series 323 233 238 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
Cod · Baltic Sea · Fisheries management · Gadus morhua · Common guillemot · Sprat · Sprattus sprattus · Trophic cascade · Uria aalge · Junk-food hypothesis |
spellingShingle |
Cod · Baltic Sea · Fisheries management · Gadus morhua · Common guillemot · Sprat · Sprattus sprattus · Trophic cascade · Uria aalge · Junk-food hypothesis Österblom H Casini M Olsson O Bignert A Fish, seabirds and trophic cascades in the Baltic Sea |
topic_facet |
Cod · Baltic Sea · Fisheries management · Gadus morhua · Common guillemot · Sprat · Sprattus sprattus · Trophic cascade · Uria aalge · Junk-food hypothesis |
description |
In the relatively simple Baltic Sea ecosystem, zooplankton-feeding sprat Sprattus sprattus is a major food source for breeding seabirds and piscivorous fish, and an important resource for commercial fisheries. Large-scale and long-term ecosystem changes resulting mainly from over fishing and recruitment failure of cod Gadus morhua, which is the main fish predator of sprat, have affected natural-history patterns in a piscivorous seabird, the common guillemot Uria aalge, in a complex way. As the sprat stock increased, leading to lower energy content of fish, common guillemot chick body mass at fledging decreased. However, chick fledging body mass recovered in recent years as the sprat stock diminished, which brought about corresponding increases in sprat weight-at-age and energy content. The cod and sprat fishery affect the common guillemots in the Baltic Sea, but the effects differ depending on the management strategy |
author2 |
Österblom H Casini M Olsson O Bignert A |
format |
Article in Journal/Newspaper |
author |
Österblom H Casini M Olsson O Bignert A |
author_facet |
Österblom H Casini M Olsson O Bignert A |
author_sort |
Österblom H |
title |
Fish, seabirds and trophic cascades in the Baltic Sea |
title_short |
Fish, seabirds and trophic cascades in the Baltic Sea |
title_full |
Fish, seabirds and trophic cascades in the Baltic Sea |
title_fullStr |
Fish, seabirds and trophic cascades in the Baltic Sea |
title_full_unstemmed |
Fish, seabirds and trophic cascades in the Baltic Sea |
title_sort |
fish, seabirds and trophic cascades in the baltic sea |
publishDate |
2006 |
url |
http://hdl.handle.net/11585/721735 https://doi.org/10.3354/meps323233 |
genre |
common guillemot Gadus morhua Uria aalge uria |
genre_facet |
common guillemot Gadus morhua Uria aalge uria |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000241921700021 volume:323 firstpage:233 lastpage:238 numberofpages:6 journal:MARINE ECOLOGY PROGRESS SERIES http://hdl.handle.net/11585/721735 doi:10.3354/meps323233 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-33750607750 |
op_doi |
https://doi.org/10.3354/meps323233 |
container_title |
Marine Ecology Progress Series |
container_volume |
323 |
container_start_page |
233 |
op_container_end_page |
238 |
_version_ |
1796308033833271296 |