Influence of sea temperature on herring distribution and migration in the Norwegian Sea in April 1997
After spawning at the west coast of Norway, the Norwegian spring spawning herring migrates northwestwards into the Norwegian Sea to feed in early April. The herring enters areas with distinct oceanographic features both horizontally and vertically in the frontal zone between the warrn Atlantic water...
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ftimr:oai:imr.brage.unit.no:11250/105943 2023-05-15T15:09:34+02:00 Influence of sea temperature on herring distribution and migration in the Norwegian Sea in April 1997 Nøttestad, Leif Misund, Ole Arve Orvik, Kjell Arild Ulvestad, Bente Hoddevik 1999 application/pdf http://hdl.handle.net/11250/105943 eng eng ICES ICES CM Documents;1999/M:3 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/105943 27 s. herring sild Norwegian Sea Norskehavet temperature temperatur distribution utbredelse fish migration vandringer VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ethology: 485 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 Working paper 1999 ftimr 2021-09-23T20:15:20Z After spawning at the west coast of Norway, the Norwegian spring spawning herring migrates northwestwards into the Norwegian Sea to feed in early April. The herring enters areas with distinct oceanographic features both horizontally and vertically in the frontal zone between the warrn Atlantic water and the cold Arctic water. The Atlantic water enters the central Norwegian Sea by means of the outer branch of the Norwegian Atlantic current which runs northeastwards and further north- and northwestwards from the Faroe Islands as an unstable frontal jet. To investigate the influence of sea temperature on the distribution and migration of herring, we performed two synoptic transects with the research vessels R/V "G.O. Sars" and R/V "Håkon Mosby" in April 1997. The R/V ''G.O. Sars" recorded the herring distribution by echo integration, tracked selected schools by sonar and took samples by pelagic trawl, while R/V "Håkon Mosby" canied out continuous sea temperature and salinity recordings of the transects by operating a SeaSoar vehicle, undulating from sea surface to 300 m depth. The relations between sea temperature, herring distribution and migrations horizontally and vertically are studied by combining the synoptic recordings from the two research vessels. Report Arctic Faroe Islands Norskehav* Norwegian Sea Institute for Marine Research: Brage IMR Arctic Norwegian Sea Faroe Islands Norway |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
herring sild Norwegian Sea Norskehavet temperature temperatur distribution utbredelse fish migration vandringer VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ethology: 485 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 |
spellingShingle |
herring sild Norwegian Sea Norskehavet temperature temperatur distribution utbredelse fish migration vandringer VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ethology: 485 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 Nøttestad, Leif Misund, Ole Arve Orvik, Kjell Arild Ulvestad, Bente Hoddevik Influence of sea temperature on herring distribution and migration in the Norwegian Sea in April 1997 |
topic_facet |
herring sild Norwegian Sea Norskehavet temperature temperatur distribution utbredelse fish migration vandringer VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ethology: 485 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 |
description |
After spawning at the west coast of Norway, the Norwegian spring spawning herring migrates northwestwards into the Norwegian Sea to feed in early April. The herring enters areas with distinct oceanographic features both horizontally and vertically in the frontal zone between the warrn Atlantic water and the cold Arctic water. The Atlantic water enters the central Norwegian Sea by means of the outer branch of the Norwegian Atlantic current which runs northeastwards and further north- and northwestwards from the Faroe Islands as an unstable frontal jet. To investigate the influence of sea temperature on the distribution and migration of herring, we performed two synoptic transects with the research vessels R/V "G.O. Sars" and R/V "Håkon Mosby" in April 1997. The R/V ''G.O. Sars" recorded the herring distribution by echo integration, tracked selected schools by sonar and took samples by pelagic trawl, while R/V "Håkon Mosby" canied out continuous sea temperature and salinity recordings of the transects by operating a SeaSoar vehicle, undulating from sea surface to 300 m depth. The relations between sea temperature, herring distribution and migrations horizontally and vertically are studied by combining the synoptic recordings from the two research vessels. |
format |
Report |
author |
Nøttestad, Leif Misund, Ole Arve Orvik, Kjell Arild Ulvestad, Bente Hoddevik |
author_facet |
Nøttestad, Leif Misund, Ole Arve Orvik, Kjell Arild Ulvestad, Bente Hoddevik |
author_sort |
Nøttestad, Leif |
title |
Influence of sea temperature on herring distribution and migration in the Norwegian Sea in April 1997 |
title_short |
Influence of sea temperature on herring distribution and migration in the Norwegian Sea in April 1997 |
title_full |
Influence of sea temperature on herring distribution and migration in the Norwegian Sea in April 1997 |
title_fullStr |
Influence of sea temperature on herring distribution and migration in the Norwegian Sea in April 1997 |
title_full_unstemmed |
Influence of sea temperature on herring distribution and migration in the Norwegian Sea in April 1997 |
title_sort |
influence of sea temperature on herring distribution and migration in the norwegian sea in april 1997 |
publisher |
ICES |
publishDate |
1999 |
url |
http://hdl.handle.net/11250/105943 |
geographic |
Arctic Norwegian Sea Faroe Islands Norway |
geographic_facet |
Arctic Norwegian Sea Faroe Islands Norway |
genre |
Arctic Faroe Islands Norskehav* Norwegian Sea |
genre_facet |
Arctic Faroe Islands Norskehav* Norwegian Sea |
op_source |
27 s. |
op_relation |
ICES CM Documents;1999/M:3 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/105943 |
_version_ |
1766340736878379008 |