Aggression and growth of different populations of Atlantic salmon parr
In order to study aggression and growth of salmon parr of different populations and the possible effect of fin-clipping on these traits hatchery reared parr originating from three populations (2 Norwegian, 1 Swedish) were stocked in three aquaria with 90 unmarked fish in each. Three aquaria were sto...
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ftimr:oai:imr.brage.unit.no:11250/103418 2024-09-15T17:56:04+00:00 Aggression and growth of different populations of Atlantic salmon parr Holm, Marianne Fernö, Anders 1978 application/pdf http://hdl.handle.net/11250/103418 eng eng ICES ICES CM Documents;1978/M:24 This report is not to be quoted without prior consultation with the General Secretary. http://hdl.handle.net/11250/103418 9 s. atlantisk laks atlantic salmon VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 Working paper 1978 ftimr 2024-07-31T03:37:25Z In order to study aggression and growth of salmon parr of different populations and the possible effect of fin-clipping on these traits hatchery reared parr originating from three populations (2 Norwegian, 1 Swedish) were stocked in three aquaria with 90 unmarked fish in each. Three aquaria were stocked with a mixed group of 30 each of the populations. These fish were fin-clipped (adipose or pelvic fins) in order to enable identification of groups. Observation time was 15 min/day/aquarium, altogether 28 days of observation were made. Total experimental time was 8 weeks. Significant differences in agonistic behaviour as well as in growth (p<0,001) was found between the populations. An effect of fin-clipping could also be detected in this study. At least one fish per aquarium established dominancy for part of the time. Most of the dominants in the mixed groups came from the same population. Report Atlantic salmon Institute for Marine Research: Brage IMR |
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Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
atlantisk laks atlantic salmon VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 |
spellingShingle |
atlantisk laks atlantic salmon VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 Holm, Marianne Fernö, Anders Aggression and growth of different populations of Atlantic salmon parr |
topic_facet |
atlantisk laks atlantic salmon VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 |
description |
In order to study aggression and growth of salmon parr of different populations and the possible effect of fin-clipping on these traits hatchery reared parr originating from three populations (2 Norwegian, 1 Swedish) were stocked in three aquaria with 90 unmarked fish in each. Three aquaria were stocked with a mixed group of 30 each of the populations. These fish were fin-clipped (adipose or pelvic fins) in order to enable identification of groups. Observation time was 15 min/day/aquarium, altogether 28 days of observation were made. Total experimental time was 8 weeks. Significant differences in agonistic behaviour as well as in growth (p<0,001) was found between the populations. An effect of fin-clipping could also be detected in this study. At least one fish per aquarium established dominancy for part of the time. Most of the dominants in the mixed groups came from the same population. |
format |
Report |
author |
Holm, Marianne Fernö, Anders |
author_facet |
Holm, Marianne Fernö, Anders |
author_sort |
Holm, Marianne |
title |
Aggression and growth of different populations of Atlantic salmon parr |
title_short |
Aggression and growth of different populations of Atlantic salmon parr |
title_full |
Aggression and growth of different populations of Atlantic salmon parr |
title_fullStr |
Aggression and growth of different populations of Atlantic salmon parr |
title_full_unstemmed |
Aggression and growth of different populations of Atlantic salmon parr |
title_sort |
aggression and growth of different populations of atlantic salmon parr |
publisher |
ICES |
publishDate |
1978 |
url |
http://hdl.handle.net/11250/103418 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
9 s. |
op_relation |
ICES CM Documents;1978/M:24 This report is not to be quoted without prior consultation with the General Secretary. http://hdl.handle.net/11250/103418 |
_version_ |
1810432287070748672 |