Differences in growth between offspring of anadromous and freshwater brown trout Salmo trutta
In this study, individual growth of juvenile offspring of anadromous and freshwater resident brown trout Salmo trutta and crosses between the two from the River Imsa, Norway, was estimated. The juveniles were incubated until hatching at two temperatures (±S.D.), either 4.4 ± 1.5 C or 7.1 ± 0.6 C. Gr...
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Online Access: | https://hdl.handle.net/11250/2734293 https://doi.org/10.1111/jfb.14693 |
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ftninstnf:oai:brage.nina.no:11250/2734293 2024-06-23T07:51:23+00:00 Differences in growth between offspring of anadromous and freshwater brown trout Salmo trutta Jonsson, Bror Jonsson, Nina River Imsa, Norway 2021 application/pdf https://hdl.handle.net/11250/2734293 https://doi.org/10.1111/jfb.14693 eng eng Norges forskningsråd: 268005 urn:issn:0022-1112 https://hdl.handle.net/11250/2734293 https://doi.org/10.1111/jfb.14693 cristin:1894080 Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no © 2021 The Authors. Journal of Fish Biology anadromous brown trout daily growth fish freshwater resident Salmo trutta temperature VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Peer reviewed Journal article 2021 ftninstnf https://doi.org/10.1111/jfb.14693 2024-06-07T03:57:56Z In this study, individual growth of juvenile offspring of anadromous and freshwater resident brown trout Salmo trutta and crosses between the two from the River Imsa, Norway, was estimated. The juveniles were incubated until hatching at two temperatures (±S.D.), either 4.4 ± 1.5 C or 7.1 ± 0.6 C. Growth rate was estimated for 22 days in August–September when the fish on average were c. 8 g in wet mass, and the estimates were standardized to 1 g fish dry mass. Offspring of anadromous S. trutta grew better at both 15 and 18 C than offspring of freshwater resident S. trutta or offspring of crosses between the two S. trutta types. This difference appears not to result from a maternal effect because anadromous S. trutta grew better than the hybrids with anadromous mothers. Instead, this appears to be an inherited difference between the anadromous and the freshwater resident fish lending support to the hypothesis that anadromous and freshwater resident S. trutta in this river differ in genetic expression. Egg incubation temperature of S. trutta appeared not to influence the later growth as reported earlier from the studies of Atlantic salmon Salmo salar. publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar Norwegian Institute for Nature Research: Brage NINA Norway Journal of Fish Biology 99 1 18 24 |
institution |
Open Polar |
collection |
Norwegian Institute for Nature Research: Brage NINA |
op_collection_id |
ftninstnf |
language |
English |
topic |
anadromous brown trout daily growth fish freshwater resident Salmo trutta temperature VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
spellingShingle |
anadromous brown trout daily growth fish freshwater resident Salmo trutta temperature VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Jonsson, Bror Jonsson, Nina Differences in growth between offspring of anadromous and freshwater brown trout Salmo trutta |
topic_facet |
anadromous brown trout daily growth fish freshwater resident Salmo trutta temperature VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
description |
In this study, individual growth of juvenile offspring of anadromous and freshwater resident brown trout Salmo trutta and crosses between the two from the River Imsa, Norway, was estimated. The juveniles were incubated until hatching at two temperatures (±S.D.), either 4.4 ± 1.5 C or 7.1 ± 0.6 C. Growth rate was estimated for 22 days in August–September when the fish on average were c. 8 g in wet mass, and the estimates were standardized to 1 g fish dry mass. Offspring of anadromous S. trutta grew better at both 15 and 18 C than offspring of freshwater resident S. trutta or offspring of crosses between the two S. trutta types. This difference appears not to result from a maternal effect because anadromous S. trutta grew better than the hybrids with anadromous mothers. Instead, this appears to be an inherited difference between the anadromous and the freshwater resident fish lending support to the hypothesis that anadromous and freshwater resident S. trutta in this river differ in genetic expression. Egg incubation temperature of S. trutta appeared not to influence the later growth as reported earlier from the studies of Atlantic salmon Salmo salar. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Jonsson, Bror Jonsson, Nina |
author_facet |
Jonsson, Bror Jonsson, Nina |
author_sort |
Jonsson, Bror |
title |
Differences in growth between offspring of anadromous and freshwater brown trout Salmo trutta |
title_short |
Differences in growth between offspring of anadromous and freshwater brown trout Salmo trutta |
title_full |
Differences in growth between offspring of anadromous and freshwater brown trout Salmo trutta |
title_fullStr |
Differences in growth between offspring of anadromous and freshwater brown trout Salmo trutta |
title_full_unstemmed |
Differences in growth between offspring of anadromous and freshwater brown trout Salmo trutta |
title_sort |
differences in growth between offspring of anadromous and freshwater brown trout salmo trutta |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2734293 https://doi.org/10.1111/jfb.14693 |
op_coverage |
River Imsa, Norway |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology |
op_relation |
Norges forskningsråd: 268005 urn:issn:0022-1112 https://hdl.handle.net/11250/2734293 https://doi.org/10.1111/jfb.14693 cristin:1894080 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no © 2021 The Authors. |
op_doi |
https://doi.org/10.1111/jfb.14693 |
container_title |
Journal of Fish Biology |
container_volume |
99 |
container_issue |
1 |
container_start_page |
18 |
op_container_end_page |
24 |
_version_ |
1802642476348997632 |