A Review of the Population Structure and Ecology of Redfish in the Irminger Sea and Adjacent Waters
19 páginas, 7 figuras.-- Deep-sea Fisheries Symposium – Oral, September 2001. Three types of Sebastes mentella in the Irminger Sea and adjacent waters have been described and there is a strong controversy about whether these types are more than one stock. Preliminary genetic studies have shown the e...
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ftcsic:oai:digital.csic.es:10261/26880 2024-02-11T10:03:26+01:00 A Review of the Population Structure and Ecology of Redfish in the Irminger Sea and Adjacent Waters Saborido-Rey, Fran Garabana, Dolores Stransky, Christoph 2001 1015911 bytes application/pdf http://hdl.handle.net/10261/26880 en eng Northwest Atlantic Fisheries Organization N4495 http://www.nafo.int/publications/frames/science.html Scientific Council Research (SCR) Documents 01/107 (2001) 0256-6915 http://hdl.handle.net/10261/26880 open artículo http://purl.org/coar/resource_type/c_6501 2001 ftcsic 2024-01-16T09:27:57Z 19 páginas, 7 figuras.-- Deep-sea Fisheries Symposium – Oral, September 2001. Three types of Sebastes mentella in the Irminger Sea and adjacent waters have been described and there is a strong controversy about whether these types are more than one stock. Preliminary genetic studies have shown the existence of three different groups, characterised by genetic differences. The biological or ecological significance of these between-group differences, however, has not been evaluated yet. In the present paper, we review the S. mentella life cycle in the area from published data. Spawning of S. mentella in the Irminger Sea takes place in a single area above Reykjanes Ridge. The larvae drift towards East Greenland and from there they are carried to West Greenland (NAFO Subareas 0+1). Afterwards, they return to East Greenland where the main nursery area has been identified. There is an evident migration of juvenile fish from the nursery area into the open Irminger Sea, where many different cohorts are involved in the spawning fraction of the population. We also compare these data of the ecology of the species with the genetic results and we conclude that the observed genetic differences can be derived from possible genetic drift, selection or mostly from temporal variation (age dependency) which has been reported in other species with as high longevity as S. mentella. We conclude that S. mentella in the Irminger Sea and adjacent waters comprises one single stock. The present study was realised within the REDFISH project (QLK5-CT1999-01222), financially supported by the European Commission within the research framework QUALITY OF LIFE AND MANAGEMENT OF LIVING RESOURCES, Key Action 5: Sustainable Agriculture, Fisheries and Forestry. Peer reviewed Article in Journal/Newspaper East Greenland Greenland Sebastes mentella Digital.CSIC (Spanish National Research Council) Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
19 páginas, 7 figuras.-- Deep-sea Fisheries Symposium – Oral, September 2001. Three types of Sebastes mentella in the Irminger Sea and adjacent waters have been described and there is a strong controversy about whether these types are more than one stock. Preliminary genetic studies have shown the existence of three different groups, characterised by genetic differences. The biological or ecological significance of these between-group differences, however, has not been evaluated yet. In the present paper, we review the S. mentella life cycle in the area from published data. Spawning of S. mentella in the Irminger Sea takes place in a single area above Reykjanes Ridge. The larvae drift towards East Greenland and from there they are carried to West Greenland (NAFO Subareas 0+1). Afterwards, they return to East Greenland where the main nursery area has been identified. There is an evident migration of juvenile fish from the nursery area into the open Irminger Sea, where many different cohorts are involved in the spawning fraction of the population. We also compare these data of the ecology of the species with the genetic results and we conclude that the observed genetic differences can be derived from possible genetic drift, selection or mostly from temporal variation (age dependency) which has been reported in other species with as high longevity as S. mentella. We conclude that S. mentella in the Irminger Sea and adjacent waters comprises one single stock. The present study was realised within the REDFISH project (QLK5-CT1999-01222), financially supported by the European Commission within the research framework QUALITY OF LIFE AND MANAGEMENT OF LIVING RESOURCES, Key Action 5: Sustainable Agriculture, Fisheries and Forestry. Peer reviewed |
format |
Article in Journal/Newspaper |
author |
Saborido-Rey, Fran Garabana, Dolores Stransky, Christoph |
spellingShingle |
Saborido-Rey, Fran Garabana, Dolores Stransky, Christoph A Review of the Population Structure and Ecology of Redfish in the Irminger Sea and Adjacent Waters |
author_facet |
Saborido-Rey, Fran Garabana, Dolores Stransky, Christoph |
author_sort |
Saborido-Rey, Fran |
title |
A Review of the Population Structure and Ecology of Redfish in the Irminger Sea and Adjacent Waters |
title_short |
A Review of the Population Structure and Ecology of Redfish in the Irminger Sea and Adjacent Waters |
title_full |
A Review of the Population Structure and Ecology of Redfish in the Irminger Sea and Adjacent Waters |
title_fullStr |
A Review of the Population Structure and Ecology of Redfish in the Irminger Sea and Adjacent Waters |
title_full_unstemmed |
A Review of the Population Structure and Ecology of Redfish in the Irminger Sea and Adjacent Waters |
title_sort |
review of the population structure and ecology of redfish in the irminger sea and adjacent waters |
publisher |
Northwest Atlantic Fisheries Organization |
publishDate |
2001 |
url |
http://hdl.handle.net/10261/26880 |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) ENVELOPE(-22.250,-22.250,65.467,65.467) |
geographic |
Greenland Irminger Sea Reykjanes |
geographic_facet |
Greenland Irminger Sea Reykjanes |
genre |
East Greenland Greenland Sebastes mentella |
genre_facet |
East Greenland Greenland Sebastes mentella |
op_relation |
N4495 http://www.nafo.int/publications/frames/science.html Scientific Council Research (SCR) Documents 01/107 (2001) 0256-6915 http://hdl.handle.net/10261/26880 |
op_rights |
open |
_version_ |
1790599674231521280 |