The migration of coastal cod (Gadus morhua L.) tagged in a fjord of western Norway
This study is part of a research program investigating the possibility of enhancing the production of coastal cod via a large scale release of pond produced fish in Masfjorden, a fjord of western Norway. An analysis of parts of the ecosystem are being carried out prior to the large scale experiment...
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ftimr:oai:imr.brage.unit.no:11250/104505 2023-05-15T16:19:12+02:00 The migration of coastal cod (Gadus morhua L.) tagged in a fjord of western Norway Nordeide, Jarle Tryti Salvanes, Anne Gro Vea 1988 application/pdf http://hdl.handle.net/11250/104505 eng eng ICES ICES CM Documents;1988/G:5 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/104505 20 s. coastal cod kysttorsk recapture gjenfangst VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ethology: 485 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 Working paper 1988 ftimr 2021-09-23T20:14:46Z This study is part of a research program investigating the possibility of enhancing the production of coastal cod via a large scale release of pond produced fish in Masfjorden, a fjord of western Norway. An analysis of parts of the ecosystem are being carried out prior to the large scale experiment with a special focus on the cod population of the fjord. The paper deals with the migration pattern of wild cod which were caught, tagged and recaptured and also, pond produced cod released in small scale tag-release-recapture experiments. We applied Spearman's rank correlation test and Kolmogrov-Smirnov two-sample test to assess whether larger individuals migrate longer distances than smaller cod. The major proportion of the immature wild and pond produced cod were nearly stationary and only 15.0 and 7.0 percent, respectively were recaptured more than five kilometers from the release site. However, a larger proportion, 54 percent, of mature cod were recaptured outside the release site, of which the !argest individuals were found to migrate the longest distances, with some of the latter intermingling with cod from contiguous fjords. Report Gadus morhua Institute for Marine Research: Brage IMR Norway |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
coastal cod kysttorsk recapture gjenfangst VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ethology: 485 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 |
spellingShingle |
coastal cod kysttorsk recapture gjenfangst VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ethology: 485 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 Nordeide, Jarle Tryti Salvanes, Anne Gro Vea The migration of coastal cod (Gadus morhua L.) tagged in a fjord of western Norway |
topic_facet |
coastal cod kysttorsk recapture gjenfangst VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ethology: 485 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 |
description |
This study is part of a research program investigating the possibility of enhancing the production of coastal cod via a large scale release of pond produced fish in Masfjorden, a fjord of western Norway. An analysis of parts of the ecosystem are being carried out prior to the large scale experiment with a special focus on the cod population of the fjord. The paper deals with the migration pattern of wild cod which were caught, tagged and recaptured and also, pond produced cod released in small scale tag-release-recapture experiments. We applied Spearman's rank correlation test and Kolmogrov-Smirnov two-sample test to assess whether larger individuals migrate longer distances than smaller cod. The major proportion of the immature wild and pond produced cod were nearly stationary and only 15.0 and 7.0 percent, respectively were recaptured more than five kilometers from the release site. However, a larger proportion, 54 percent, of mature cod were recaptured outside the release site, of which the !argest individuals were found to migrate the longest distances, with some of the latter intermingling with cod from contiguous fjords. |
format |
Report |
author |
Nordeide, Jarle Tryti Salvanes, Anne Gro Vea |
author_facet |
Nordeide, Jarle Tryti Salvanes, Anne Gro Vea |
author_sort |
Nordeide, Jarle Tryti |
title |
The migration of coastal cod (Gadus morhua L.) tagged in a fjord of western Norway |
title_short |
The migration of coastal cod (Gadus morhua L.) tagged in a fjord of western Norway |
title_full |
The migration of coastal cod (Gadus morhua L.) tagged in a fjord of western Norway |
title_fullStr |
The migration of coastal cod (Gadus morhua L.) tagged in a fjord of western Norway |
title_full_unstemmed |
The migration of coastal cod (Gadus morhua L.) tagged in a fjord of western Norway |
title_sort |
migration of coastal cod (gadus morhua l.) tagged in a fjord of western norway |
publisher |
ICES |
publishDate |
1988 |
url |
http://hdl.handle.net/11250/104505 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
20 s. |
op_relation |
ICES CM Documents;1988/G:5 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/104505 |
_version_ |
1766005548877086720 |