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Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management
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| Zeitschriftentitel: | ICES Journal of Marine Science |
|---|---|
| Personen und Körperschaften: | , , , , , |
| In: | ICES Journal of Marine Science, 72, 2015, 2, S. 595-613 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Oxford University Press (OUP)
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| Schlagwörter: |
| author_facet |
Jørgensen, Lis Lindal Ljubin, Pavel Skjoldal, Hein Rune Ingvaldsen, Randi B. Anisimova, Natalia Manushin, Igor Jørgensen, Lis Lindal Ljubin, Pavel Skjoldal, Hein Rune Ingvaldsen, Randi B. Anisimova, Natalia Manushin, Igor |
|---|---|
| author |
Jørgensen, Lis Lindal Ljubin, Pavel Skjoldal, Hein Rune Ingvaldsen, Randi B. Anisimova, Natalia Manushin, Igor |
| spellingShingle |
Jørgensen, Lis Lindal Ljubin, Pavel Skjoldal, Hein Rune Ingvaldsen, Randi B. Anisimova, Natalia Manushin, Igor ICES Journal of Marine Science Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
| author_sort |
jørgensen, lis lindal |
| spelling |
Jørgensen, Lis Lindal Ljubin, Pavel Skjoldal, Hein Rune Ingvaldsen, Randi B. Anisimova, Natalia Manushin, Igor 1095-9289 1054-3139 Oxford University Press (OUP) Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography http://dx.doi.org/10.1093/icesjms/fsu106 <jats:title>Abstract</jats:title><jats:p>Benthos plays a significant role as substrate, refuge from predation and food for a wide variety of fish and invertebrates of all life stages and should therefore be considered in the ecosystem approach (EA) to management. Epibenthos from trawl catches, used in annual assessments of commercial fish stocks, was identified and measured on-board. The 2011 dataset present the baseline mapping for monitoring and included 354 taxa (218 to species level) analysed with multivariate statistical methods. This revealed four main megafaunal regions: southwestern (SW), banks/slopes in southeast and west (SEW), northwestern (NW), and northeastern (NE) which were significantly related to depth, temperature, salinity, and number of ice-days. The SW region was dominated by filter-feeders (sponges) in the inflow area of warm Atlantic water while the deeper trenches had a detritivorous fauna (echinoderms). In the SEW region, predators (sea stars, anemones and snow crabs) prevailed together with filtrating species (sea cucumber and bivalves) within a mosaic of banks and slopes. Plankton-feeding brittlestars were common in the NW and NE region, but with increasing snow crab population in NE. Climate change, potentially expanding trawling activity, and increasing snow and king crab populations might all have impacts on the benthos. Benthos should therefore be a part of an integrated assessment of a changing sea, and national agencies might consider adding benthic taxonomic expertise on-board scientific research vessels to identify the invertebrate “by-catch” as part of routine trawl surveys.</jats:p> Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management ICES Journal of Marine Science |
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Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management |
| title_unstemmed |
Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management |
| title_full |
Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management |
| title_fullStr |
Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management |
| title_full_unstemmed |
Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management |
| title_short |
Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management |
| title_sort |
distribution of benthic megafauna in the barents sea: baseline for an ecosystem approach to management |
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Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
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http://dx.doi.org/10.1093/icesjms/fsu106 |
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2015 |
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595-613 |
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<jats:title>Abstract</jats:title><jats:p>Benthos plays a significant role as substrate, refuge from predation and food for a wide variety of fish and invertebrates of all life stages and should therefore be considered in the ecosystem approach (EA) to management. Epibenthos from trawl catches, used in annual assessments of commercial fish stocks, was identified and measured on-board. The 2011 dataset present the baseline mapping for monitoring and included 354 taxa (218 to species level) analysed with multivariate statistical methods. This revealed four main megafaunal regions: southwestern (SW), banks/slopes in southeast and west (SEW), northwestern (NW), and northeastern (NE) which were significantly related to depth, temperature, salinity, and number of ice-days. The SW region was dominated by filter-feeders (sponges) in the inflow area of warm Atlantic water while the deeper trenches had a detritivorous fauna (echinoderms). In the SEW region, predators (sea stars, anemones and snow crabs) prevailed together with filtrating species (sea cucumber and bivalves) within a mosaic of banks and slopes. Plankton-feeding brittlestars were common in the NW and NE region, but with increasing snow crab population in NE. Climate change, potentially expanding trawling activity, and increasing snow and king crab populations might all have impacts on the benthos. Benthos should therefore be a part of an integrated assessment of a changing sea, and national agencies might consider adding benthic taxonomic expertise on-board scientific research vessels to identify the invertebrate “by-catch” as part of routine trawl surveys.</jats:p> |
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| author | Jørgensen, Lis Lindal, Ljubin, Pavel, Skjoldal, Hein Rune, Ingvaldsen, Randi B., Anisimova, Natalia, Manushin, Igor |
| author_facet | Jørgensen, Lis Lindal, Ljubin, Pavel, Skjoldal, Hein Rune, Ingvaldsen, Randi B., Anisimova, Natalia, Manushin, Igor, Jørgensen, Lis Lindal, Ljubin, Pavel, Skjoldal, Hein Rune, Ingvaldsen, Randi B., Anisimova, Natalia, Manushin, Igor |
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| description | <jats:title>Abstract</jats:title><jats:p>Benthos plays a significant role as substrate, refuge from predation and food for a wide variety of fish and invertebrates of all life stages and should therefore be considered in the ecosystem approach (EA) to management. Epibenthos from trawl catches, used in annual assessments of commercial fish stocks, was identified and measured on-board. The 2011 dataset present the baseline mapping for monitoring and included 354 taxa (218 to species level) analysed with multivariate statistical methods. This revealed four main megafaunal regions: southwestern (SW), banks/slopes in southeast and west (SEW), northwestern (NW), and northeastern (NE) which were significantly related to depth, temperature, salinity, and number of ice-days. The SW region was dominated by filter-feeders (sponges) in the inflow area of warm Atlantic water while the deeper trenches had a detritivorous fauna (echinoderms). In the SEW region, predators (sea stars, anemones and snow crabs) prevailed together with filtrating species (sea cucumber and bivalves) within a mosaic of banks and slopes. Plankton-feeding brittlestars were common in the NW and NE region, but with increasing snow crab population in NE. Climate change, potentially expanding trawling activity, and increasing snow and king crab populations might all have impacts on the benthos. Benthos should therefore be a part of an integrated assessment of a changing sea, and national agencies might consider adding benthic taxonomic expertise on-board scientific research vessels to identify the invertebrate “by-catch” as part of routine trawl surveys.</jats:p> |
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| institution | DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Zi4, DE-Gla1, DE-15, DE-Pl11, DE-Rs1, DE-14, DE-105, DE-Ch1 |
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| spelling | Jørgensen, Lis Lindal Ljubin, Pavel Skjoldal, Hein Rune Ingvaldsen, Randi B. Anisimova, Natalia Manushin, Igor 1095-9289 1054-3139 Oxford University Press (OUP) Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography http://dx.doi.org/10.1093/icesjms/fsu106 <jats:title>Abstract</jats:title><jats:p>Benthos plays a significant role as substrate, refuge from predation and food for a wide variety of fish and invertebrates of all life stages and should therefore be considered in the ecosystem approach (EA) to management. Epibenthos from trawl catches, used in annual assessments of commercial fish stocks, was identified and measured on-board. The 2011 dataset present the baseline mapping for monitoring and included 354 taxa (218 to species level) analysed with multivariate statistical methods. This revealed four main megafaunal regions: southwestern (SW), banks/slopes in southeast and west (SEW), northwestern (NW), and northeastern (NE) which were significantly related to depth, temperature, salinity, and number of ice-days. The SW region was dominated by filter-feeders (sponges) in the inflow area of warm Atlantic water while the deeper trenches had a detritivorous fauna (echinoderms). In the SEW region, predators (sea stars, anemones and snow crabs) prevailed together with filtrating species (sea cucumber and bivalves) within a mosaic of banks and slopes. Plankton-feeding brittlestars were common in the NW and NE region, but with increasing snow crab population in NE. Climate change, potentially expanding trawling activity, and increasing snow and king crab populations might all have impacts on the benthos. Benthos should therefore be a part of an integrated assessment of a changing sea, and national agencies might consider adding benthic taxonomic expertise on-board scientific research vessels to identify the invertebrate “by-catch” as part of routine trawl surveys.</jats:p> Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management ICES Journal of Marine Science |
| spellingShingle | Jørgensen, Lis Lindal, Ljubin, Pavel, Skjoldal, Hein Rune, Ingvaldsen, Randi B., Anisimova, Natalia, Manushin, Igor, ICES Journal of Marine Science, Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management, Ecology, Aquatic Science, Ecology, Evolution, Behavior and Systematics, Oceanography |
| title | Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management |
| title_full | Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management |
| title_fullStr | Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management |
| title_full_unstemmed | Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management |
| title_short | Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management |
| title_sort | distribution of benthic megafauna in the barents sea: baseline for an ecosystem approach to management |
| title_unstemmed | Distribution of benthic megafauna in the Barents Sea: baseline for an ecosystem approach to management |
| topic | Ecology, Aquatic Science, Ecology, Evolution, Behavior and Systematics, Oceanography |
| url | http://dx.doi.org/10.1093/icesjms/fsu106 |