Fish community dynamics in a coastal no-take marine protected area compared to a harvested area before and after protection from fishing
An ecosystem's ability to maintain key functions during environmental change is largely determined by its biodiversity. We compared fish species composition, richness, diversity, catch per unit effort (CPUE), and fish size between a 1.5 km2 no-take marine protected area (MPA) and a nearby fishe...
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Online Access: | https://hdl.handle.net/11250/3098130 https://doi.org/10.1093/icesjms/fsad074 |
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ftimr:oai:imr.brage.unit.no:11250/3098130 2023-11-12T04:14:22+01:00 Fish community dynamics in a coastal no-take marine protected area compared to a harvested area before and after protection from fishing Varnes, Bjørg Karin Olsen, Esben Moland 2023 application/pdf https://hdl.handle.net/11250/3098130 https://doi.org/10.1093/icesjms/fsad074 eng eng Norges forskningsråd: 294926 ICES Journal of Marine Science. 2023, 80 (5), 1462-1471. urn:issn:1054-3139 https://hdl.handle.net/11250/3098130 https://doi.org/10.1093/icesjms/fsad074 cristin:2163416 1462-1471 80 ICES Journal of Marine Science 5 Peer reviewed Journal article 2023 ftimr https://doi.org/10.1093/icesjms/fsad074 2023-10-25T22:47:27Z An ecosystem's ability to maintain key functions during environmental change is largely determined by its biodiversity. We compared fish species composition, richness, diversity, catch per unit effort (CPUE), and fish size between a 1.5 km2 no-take marine protected area (MPA) and a nearby fished area on the southern Norwegian coast annually for one decade (2011–2021), including before-protection status. In total, >26 thousand fish representing 31 species were sampled using a beach seine. No significant effect of protection was detected on either species richness, diversity, or evenness. For selected species of small-bodied intermediate predators, there was a significant decline in mean body size in the MPA area compared to the fished area, indicative of a response to protection involving trophic interactions. No significant effect of the MPA was detected on either CPUE or body size of Atlantic cod (Gadus morhua), a top predator mainly captured at the juvenile stage by our sampling. The limited responses seen in this study may be linked to the small size of the MPA compared to the dispersal and movement capabilities of species such as the cod. publishedVersion Article in Journal/Newspaper atlantic cod Gadus morhua Institute for Marine Research: Brage IMR ICES Journal of Marine Science 80 5 1462 1471 |
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Institute for Marine Research: Brage IMR |
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English |
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An ecosystem's ability to maintain key functions during environmental change is largely determined by its biodiversity. We compared fish species composition, richness, diversity, catch per unit effort (CPUE), and fish size between a 1.5 km2 no-take marine protected area (MPA) and a nearby fished area on the southern Norwegian coast annually for one decade (2011–2021), including before-protection status. In total, >26 thousand fish representing 31 species were sampled using a beach seine. No significant effect of protection was detected on either species richness, diversity, or evenness. For selected species of small-bodied intermediate predators, there was a significant decline in mean body size in the MPA area compared to the fished area, indicative of a response to protection involving trophic interactions. No significant effect of the MPA was detected on either CPUE or body size of Atlantic cod (Gadus morhua), a top predator mainly captured at the juvenile stage by our sampling. The limited responses seen in this study may be linked to the small size of the MPA compared to the dispersal and movement capabilities of species such as the cod. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Varnes, Bjørg Karin Olsen, Esben Moland |
spellingShingle |
Varnes, Bjørg Karin Olsen, Esben Moland Fish community dynamics in a coastal no-take marine protected area compared to a harvested area before and after protection from fishing |
author_facet |
Varnes, Bjørg Karin Olsen, Esben Moland |
author_sort |
Varnes, Bjørg Karin |
title |
Fish community dynamics in a coastal no-take marine protected area compared to a harvested area before and after protection from fishing |
title_short |
Fish community dynamics in a coastal no-take marine protected area compared to a harvested area before and after protection from fishing |
title_full |
Fish community dynamics in a coastal no-take marine protected area compared to a harvested area before and after protection from fishing |
title_fullStr |
Fish community dynamics in a coastal no-take marine protected area compared to a harvested area before and after protection from fishing |
title_full_unstemmed |
Fish community dynamics in a coastal no-take marine protected area compared to a harvested area before and after protection from fishing |
title_sort |
fish community dynamics in a coastal no-take marine protected area compared to a harvested area before and after protection from fishing |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3098130 https://doi.org/10.1093/icesjms/fsad074 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
1462-1471 80 ICES Journal of Marine Science 5 |
op_relation |
Norges forskningsråd: 294926 ICES Journal of Marine Science. 2023, 80 (5), 1462-1471. urn:issn:1054-3139 https://hdl.handle.net/11250/3098130 https://doi.org/10.1093/icesjms/fsad074 cristin:2163416 |
op_doi |
https://doi.org/10.1093/icesjms/fsad074 |
container_title |
ICES Journal of Marine Science |
container_volume |
80 |
container_issue |
5 |
container_start_page |
1462 |
op_container_end_page |
1471 |
_version_ |
1782332037032574976 |