Effect from the king- and snow crab on Barents Sea benthos. Results and conclusions from the Norwegian-Russian Workshop in Tromsø 2010
The king crab move further out in the sea in Russian waters compared to the Norwegian waters. This might have important implications on the distribution of feeding pressure and impact of crabs on benthic communities making them different in different areas. Though the king crab population is still s...
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Online Access: | http://hdl.handle.net/11250/113927 |
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ftimr:oai:imr.brage.unit.no:11250/113927 2023-05-15T15:38:41+02:00 Effect from the king- and snow crab on Barents Sea benthos. Results and conclusions from the Norwegian-Russian Workshop in Tromsø 2010 Jørgensen, Lis Lindal Spiridonov, Vassily 2013 application/pdf http://hdl.handle.net/11250/113927 eng eng Havforskningsinstituttet Fisken og havet;8-2013 urn:issn:0071-5638 http://hdl.handle.net/11250/113927 44 s. Barents Sea Barentshavet benthos bentos introduced species introduserte arter king crab kongekrabbe snow crab snøkrabbe VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 Research report 2013 ftimr 2021-09-23T20:14:52Z The king crab move further out in the sea in Russian waters compared to the Norwegian waters. This might have important implications on the distribution of feeding pressure and impact of crabs on benthic communities making them different in different areas. Though the king crab population is still spreading along the coast, the snow-crab population, spreading on the seafloor of the open sea, is expected to increase beyond the standing stock of king crab. The king crab has a measurable effect from foraging on large visible sea stars, brittle stars and bivalves and preferable prey will decrease while species, not preferred, will become dominant together with “hide or flight” bottom animals. Some areas show sign of almost extinction of large prey, and borrowing fauna inside the sediment might have decreased due to the foraging from the crab, and consequently left the sediment environment low in oxygen. Areas with refuge still have high biodiversity. Report Barents Sea Barentshav* Kongekrabbe Snow crab Snøkrabbe Tromsø Institute for Marine Research: Brage IMR Barents Sea Tromsø |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
Barents Sea Barentshavet benthos bentos introduced species introduserte arter king crab kongekrabbe snow crab snøkrabbe VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 |
spellingShingle |
Barents Sea Barentshavet benthos bentos introduced species introduserte arter king crab kongekrabbe snow crab snøkrabbe VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 Jørgensen, Lis Lindal Spiridonov, Vassily Effect from the king- and snow crab on Barents Sea benthos. Results and conclusions from the Norwegian-Russian Workshop in Tromsø 2010 |
topic_facet |
Barents Sea Barentshavet benthos bentos introduced species introduserte arter king crab kongekrabbe snow crab snøkrabbe VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 |
description |
The king crab move further out in the sea in Russian waters compared to the Norwegian waters. This might have important implications on the distribution of feeding pressure and impact of crabs on benthic communities making them different in different areas. Though the king crab population is still spreading along the coast, the snow-crab population, spreading on the seafloor of the open sea, is expected to increase beyond the standing stock of king crab. The king crab has a measurable effect from foraging on large visible sea stars, brittle stars and bivalves and preferable prey will decrease while species, not preferred, will become dominant together with “hide or flight” bottom animals. Some areas show sign of almost extinction of large prey, and borrowing fauna inside the sediment might have decreased due to the foraging from the crab, and consequently left the sediment environment low in oxygen. Areas with refuge still have high biodiversity. |
format |
Report |
author |
Jørgensen, Lis Lindal Spiridonov, Vassily |
author_facet |
Jørgensen, Lis Lindal Spiridonov, Vassily |
author_sort |
Jørgensen, Lis Lindal |
title |
Effect from the king- and snow crab on Barents Sea benthos. Results and conclusions from the Norwegian-Russian Workshop in Tromsø 2010 |
title_short |
Effect from the king- and snow crab on Barents Sea benthos. Results and conclusions from the Norwegian-Russian Workshop in Tromsø 2010 |
title_full |
Effect from the king- and snow crab on Barents Sea benthos. Results and conclusions from the Norwegian-Russian Workshop in Tromsø 2010 |
title_fullStr |
Effect from the king- and snow crab on Barents Sea benthos. Results and conclusions from the Norwegian-Russian Workshop in Tromsø 2010 |
title_full_unstemmed |
Effect from the king- and snow crab on Barents Sea benthos. Results and conclusions from the Norwegian-Russian Workshop in Tromsø 2010 |
title_sort |
effect from the king- and snow crab on barents sea benthos. results and conclusions from the norwegian-russian workshop in tromsø 2010 |
publisher |
Havforskningsinstituttet |
publishDate |
2013 |
url |
http://hdl.handle.net/11250/113927 |
geographic |
Barents Sea Tromsø |
geographic_facet |
Barents Sea Tromsø |
genre |
Barents Sea Barentshav* Kongekrabbe Snow crab Snøkrabbe Tromsø |
genre_facet |
Barents Sea Barentshav* Kongekrabbe Snow crab Snøkrabbe Tromsø |
op_source |
44 s. |
op_relation |
Fisken og havet;8-2013 urn:issn:0071-5638 http://hdl.handle.net/11250/113927 |
_version_ |
1766369927931887616 |