Aggression and growth of Atlantic salmon parr. II. Different populations in pure and mixed groups
The aggressive behaviour and growth of different populations of Atlantic salmon parr and the possible effect of fin-clipping on these traits were studied. Each of three 2001 aquaria was stocked with 90 unmarked hatchery parr from one of three different populations (one Swedish, two Norwegian). Three...
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[Fiskeridirektoratets havforskningsinstitutt]
1986
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Online Access: | http://hdl.handle.net/11250/114518 |
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ftimr:oai:imr.brage.unit.no:11250/114518 2023-05-15T15:30:59+02:00 Aggression and growth of Atlantic salmon parr. II. Different populations in pure and mixed groups Holm, Marianne Fernö, Anders 1986 290880 bytes application/pdf http://hdl.handle.net/11250/114518 eng eng [Fiskeridirektoratets havforskningsinstitutt] Fiskeridirektoratets skrifter, Serie Havundersøkelser vol 18 no 3 http://hdl.handle.net/11250/114518 s. 123-129 Research report 1986 ftimr 2021-09-23T20:14:53Z The aggressive behaviour and growth of different populations of Atlantic salmon parr and the possible effect of fin-clipping on these traits were studied. Each of three 2001 aquaria was stocked with 90 unmarked hatchery parr from one of three different populations (one Swedish, two Norwegian). Three other aquaria were stocked with mixed groups consisting of 30 parr from each population. To enable identification, two of the three groups were alternately fin-clipped (adipose fin or pelvic fins). Significant differences in aggressive activity and growth were found between the populations. The population with the most aggressive parr had the slowest growth in both pure and mixed groups. Parr with cut pelvic fins both performed and received fewer aggressive acts than parr with cut adipose fin or unmarked parr. The results suggest a negative correlation between aggression and growth, and indicate that growth differences between populations to some extent may be mediated by genetically determined differences in behaviour. Report Atlantic salmon Institute for Marine Research: Brage IMR |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
The aggressive behaviour and growth of different populations of Atlantic salmon parr and the possible effect of fin-clipping on these traits were studied. Each of three 2001 aquaria was stocked with 90 unmarked hatchery parr from one of three different populations (one Swedish, two Norwegian). Three other aquaria were stocked with mixed groups consisting of 30 parr from each population. To enable identification, two of the three groups were alternately fin-clipped (adipose fin or pelvic fins). Significant differences in aggressive activity and growth were found between the populations. The population with the most aggressive parr had the slowest growth in both pure and mixed groups. Parr with cut pelvic fins both performed and received fewer aggressive acts than parr with cut adipose fin or unmarked parr. The results suggest a negative correlation between aggression and growth, and indicate that growth differences between populations to some extent may be mediated by genetically determined differences in behaviour. |
format |
Report |
author |
Holm, Marianne Fernö, Anders |
spellingShingle |
Holm, Marianne Fernö, Anders Aggression and growth of Atlantic salmon parr. II. Different populations in pure and mixed groups |
author_facet |
Holm, Marianne Fernö, Anders |
author_sort |
Holm, Marianne |
title |
Aggression and growth of Atlantic salmon parr. II. Different populations in pure and mixed groups |
title_short |
Aggression and growth of Atlantic salmon parr. II. Different populations in pure and mixed groups |
title_full |
Aggression and growth of Atlantic salmon parr. II. Different populations in pure and mixed groups |
title_fullStr |
Aggression and growth of Atlantic salmon parr. II. Different populations in pure and mixed groups |
title_full_unstemmed |
Aggression and growth of Atlantic salmon parr. II. Different populations in pure and mixed groups |
title_sort |
aggression and growth of atlantic salmon parr. ii. different populations in pure and mixed groups |
publisher |
[Fiskeridirektoratets havforskningsinstitutt] |
publishDate |
1986 |
url |
http://hdl.handle.net/11250/114518 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
s. 123-129 |
op_relation |
Fiskeridirektoratets skrifter, Serie Havundersøkelser vol 18 no 3 http://hdl.handle.net/11250/114518 |
_version_ |
1766361464852971520 |