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Wrasse fishery on t...
Wrasse fishery on the Swedish West Coast: towards ecosystem-based management
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Bourlat, Sarah (author)
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- Faust, Ellika (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences,Department of marine sciences, Tjärnö Marine Laboratory
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- Wennhage, Håkan, 1965 (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för akvatiska resurser,Department of Aquatic Resources
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- Wikström, Andreas (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för akvatiska resurser,Department of Aquatic Resources
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- Rigby, Kristie, 1987 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences
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- Vigo, Maria (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences
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- Kraly, Paul (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences
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- Selander, Erik, 1973 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences
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- André, Carl, 1958 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences,Department of marine sciences, Tjärnö Marine Laboratory
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(creator_code:org_t)
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- 2021-03-10
- 2021
- English.
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In: ICES Journal of Marine Science. - : Oxford University Press (OUP). - 1054-3139 .- 1095-9289. ; :fsaa249
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Abstract
Subject headings
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- Fishing and translocation of marine species for use in aquaculture is widespread. Corkwing, goldsinny, and ballan wrasse (Symphodus melops, Ctenolabrus rupestris, and Labrus bergylta) are fished on the Swedish west coast for use as cleaner-fish in Norwegian salmon farms. Here, we aim to provide knowledge and recommendations to support ecosystem-based management for wrasse fisheries in Sweden. We compared fished and non-fished areas to test if current fishery levels have led to stock depletion. To gain insight on the role of wrasse in the algal belt trophic chain, we analysed the gut contents of goldsinny and corkwing using metabarcoding. Finally, we analysed the trophic interactions of wrasse and potential prey in a mesocosm study. We could not detect any signs of stock depletion or altered size structure in fished areas compared to the protected control area. Gut analyses confirmed both goldsinny and corkwing as non-specialized, omnivorous opportunists and revealed, with 189 prey taxa detected, a broader spectrum of prey than previously known. Common prey items included mesoherbivores such as small gastropods and crustaceans, but also insects and algae. We conclude that there are no visible signs of stock depletion at the current removal level of wrasses by the fishery. However, this emerging fishery should be closely monitored for potential cascading effects on the algal belt ecosystem, and our study could provide a baseline for future monitoring.
Subject headings
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Bioinformatik och systembiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Bioinformatics and Systems Biology (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- LANTBRUKSVETENSKAPER -- Annan lantbruksvetenskap -- Vilt- och fiskeförvaltning (hsv//swe)
- AGRICULTURAL SCIENCES -- Other Agricultural Sciences -- Fish and Wildlife Management (hsv//eng)
Keyword
- cleaner fish
- Ctenolabrus rupestris
- diet analysis
- ecosystem-based management
- mesocosm
- metabarcoding
- Symphodus melops
- wrasse fisheries
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Bourlat, Sarah
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Faust, Ellika
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Wennhage, Håkan, ...
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Wikström, Andrea ...
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Rigby, Kristie, ...
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Vigo, Maria
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show more...
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Kraly, Paul
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Selander, Erik, ...
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André, Carl, 195 ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Genetics
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Ecology
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Bioinformatics a ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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- AGRICULTURAL SCIENCES
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AGRICULTURAL SCI ...
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and Other Agricultur ...
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and Fish and Wildlif ...
- Articles in the publication
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ICES Journal of ...
- By the university
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University of Gothenburg
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Swedish University of Agricultural Sciences