Influence of feed ration size on somatic and muscle growth in landlocked dwarf and farmed Atlantic salmon Salmo salar
We examined the possible adaptation of the dwarf Bleke population of Atlantic salmon Salmo salar from Lake Byglandsfjord in southern Norway to limited food resources. The growth performance and muscle development in juvenile Bleke and farmed S. salar under satiated or restricted (50%) feeding were e...
Published in: | Journal of Fish Biology |
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Online Access: | http://hdl.handle.net/10023/19668 https://doi.org/10.1111/jfb.13942 |
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/19668 2023-07-02T03:31:42+02:00 Influence of feed ration size on somatic and muscle growth in landlocked dwarf and farmed Atlantic salmon Salmo salar Andersen, Øivind Vieira, Vera Dessen, Jens-Erik Johnston, Ian A. University of St Andrews. School of Biology University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Scottish Oceans Institute University of St Andrews. Centre for Research into Ecological & Environmental Modelling 2020-03-18 7 application/pdf http://hdl.handle.net/10023/19668 https://doi.org/10.1111/jfb.13942 eng eng Journal of Fish Biology Andersen , Ø , Vieira , V , Dessen , J-E & Johnston , I A 2019 , ' Influence of feed ration size on somatic and muscle growth in landlocked dwarf and farmed Atlantic salmon Salmo salar ' , Journal of Fish Biology , vol. 94 , no. 4 , pp. 614-620 . https://doi.org/10.1111/jfb.13942 0022-1112 PURE: 257988095 PURE UUID: 829de309-2809-4e38-bde4-98d49555ec04 RIS: urn:70A92BF8253C08D6EEEBB8A50C370900 ORCID: /0000-0002-7796-5754/work/55643767 Scopus: 85064216195 WOS: 000466180500008 http://hdl.handle.net/10023/19668 https://doi.org/10.1111/jfb.13942 Copyright © 2019 The Fisheries Society of the British Isles. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1111/jfb.13942 Adaptation Dwarfism Feed restriction Hypertrophy Landlocked salmon Muscle fibre QH301 Biology SH Aquaculture. Fisheries. Angling NDAS QH301 SH Journal article 2020 ftstandrewserep https://doi.org/10.1111/jfb.13942 2023-06-13T18:28:48Z We examined the possible adaptation of the dwarf Bleke population of Atlantic salmon Salmo salar from Lake Byglandsfjord in southern Norway to limited food resources. The growth performance and muscle development in juvenile Bleke and farmed S. salar under satiated or restricted (50%) feeding were examined for 10 months, starting 3 weeks after first‐feeding stage. Four‐thousand fish were divided into four replicated groups and random samples of 16–40 fish per group were measured six times during the experiment. The two strains showed no significant difference in mean body mass when fed restricted ration, but the individual variation was considerably higher in the farmed fish. Both Bleke and farmed S. salar grew significantly faster when fed to satiation, but the farmed S. salar showed much higher gain in mass and were three times heavier (201.5 g v. 66.7 g) and possessed twice as many fast muscle fibres (179682 v. 84779) compared with landlocked S. salar after 10 months. Farmed fish fed full ration displayed both hypertrophic and hyperplasic muscle growth, while the increased growth in Bleke S. salar was entirely associated with a larger fibre diameter. The landlocked Bleke strain has apparently adapted to low food availability by minimising the metabolic costs of maintenance and growth through reduced dominance hierarchies and by an increase in average muscle fibre diameter relative to the ancestral condition. Postprint Peer reviewed Article in Journal/Newspaper Atlantic salmon Salmo salar University of St Andrews: Digital Research Repository Norway Journal of Fish Biology 94 4 614 620 |
institution |
Open Polar |
collection |
University of St Andrews: Digital Research Repository |
op_collection_id |
ftstandrewserep |
language |
English |
topic |
Adaptation Dwarfism Feed restriction Hypertrophy Landlocked salmon Muscle fibre QH301 Biology SH Aquaculture. Fisheries. Angling NDAS QH301 SH |
spellingShingle |
Adaptation Dwarfism Feed restriction Hypertrophy Landlocked salmon Muscle fibre QH301 Biology SH Aquaculture. Fisheries. Angling NDAS QH301 SH Andersen, Øivind Vieira, Vera Dessen, Jens-Erik Johnston, Ian A. Influence of feed ration size on somatic and muscle growth in landlocked dwarf and farmed Atlantic salmon Salmo salar |
topic_facet |
Adaptation Dwarfism Feed restriction Hypertrophy Landlocked salmon Muscle fibre QH301 Biology SH Aquaculture. Fisheries. Angling NDAS QH301 SH |
description |
We examined the possible adaptation of the dwarf Bleke population of Atlantic salmon Salmo salar from Lake Byglandsfjord in southern Norway to limited food resources. The growth performance and muscle development in juvenile Bleke and farmed S. salar under satiated or restricted (50%) feeding were examined for 10 months, starting 3 weeks after first‐feeding stage. Four‐thousand fish were divided into four replicated groups and random samples of 16–40 fish per group were measured six times during the experiment. The two strains showed no significant difference in mean body mass when fed restricted ration, but the individual variation was considerably higher in the farmed fish. Both Bleke and farmed S. salar grew significantly faster when fed to satiation, but the farmed S. salar showed much higher gain in mass and were three times heavier (201.5 g v. 66.7 g) and possessed twice as many fast muscle fibres (179682 v. 84779) compared with landlocked S. salar after 10 months. Farmed fish fed full ration displayed both hypertrophic and hyperplasic muscle growth, while the increased growth in Bleke S. salar was entirely associated with a larger fibre diameter. The landlocked Bleke strain has apparently adapted to low food availability by minimising the metabolic costs of maintenance and growth through reduced dominance hierarchies and by an increase in average muscle fibre diameter relative to the ancestral condition. Postprint Peer reviewed |
author2 |
University of St Andrews. School of Biology University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Scottish Oceans Institute University of St Andrews. Centre for Research into Ecological & Environmental Modelling |
format |
Article in Journal/Newspaper |
author |
Andersen, Øivind Vieira, Vera Dessen, Jens-Erik Johnston, Ian A. |
author_facet |
Andersen, Øivind Vieira, Vera Dessen, Jens-Erik Johnston, Ian A. |
author_sort |
Andersen, Øivind |
title |
Influence of feed ration size on somatic and muscle growth in landlocked dwarf and farmed Atlantic salmon Salmo salar |
title_short |
Influence of feed ration size on somatic and muscle growth in landlocked dwarf and farmed Atlantic salmon Salmo salar |
title_full |
Influence of feed ration size on somatic and muscle growth in landlocked dwarf and farmed Atlantic salmon Salmo salar |
title_fullStr |
Influence of feed ration size on somatic and muscle growth in landlocked dwarf and farmed Atlantic salmon Salmo salar |
title_full_unstemmed |
Influence of feed ration size on somatic and muscle growth in landlocked dwarf and farmed Atlantic salmon Salmo salar |
title_sort |
influence of feed ration size on somatic and muscle growth in landlocked dwarf and farmed atlantic salmon salmo salar |
publishDate |
2020 |
url |
http://hdl.handle.net/10023/19668 https://doi.org/10.1111/jfb.13942 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
Journal of Fish Biology Andersen , Ø , Vieira , V , Dessen , J-E & Johnston , I A 2019 , ' Influence of feed ration size on somatic and muscle growth in landlocked dwarf and farmed Atlantic salmon Salmo salar ' , Journal of Fish Biology , vol. 94 , no. 4 , pp. 614-620 . https://doi.org/10.1111/jfb.13942 0022-1112 PURE: 257988095 PURE UUID: 829de309-2809-4e38-bde4-98d49555ec04 RIS: urn:70A92BF8253C08D6EEEBB8A50C370900 ORCID: /0000-0002-7796-5754/work/55643767 Scopus: 85064216195 WOS: 000466180500008 http://hdl.handle.net/10023/19668 https://doi.org/10.1111/jfb.13942 |
op_rights |
Copyright © 2019 The Fisheries Society of the British Isles. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1111/jfb.13942 |
op_doi |
https://doi.org/10.1111/jfb.13942 |
container_title |
Journal of Fish Biology |
container_volume |
94 |
container_issue |
4 |
container_start_page |
614 |
op_container_end_page |
620 |
_version_ |
1770271090059247616 |