Influence of prehatch temperature on the development of muscle cellularity in posthatch Atlantic salmon ( Salmo salar)
Previous work has shown that higher incubation temperatures produce newly hatched salmon (Salmo salar) with fewer but larger muscle fibres than salmon incubated at colder temperatures. Our purpose was to study the effect of differing incubation temperatures on the development of muscle cellularity i...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Canadian Science Publishing
1995
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crcansciencepubl:10.1139/f95-068 2024-09-15T17:56:10+00:00 Influence of prehatch temperature on the development of muscle cellularity in posthatch Atlantic salmon ( Salmo salar) Nathanailides, C. Stickland, N. C Lopez-Albors, O. 1995 http://dx.doi.org/10.1139/f95-068 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-068 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 52, issue 4, page 675-680 ISSN 0706-652X 1205-7533 journal-article 1995 crcansciencepubl https://doi.org/10.1139/f95-068 2024-08-08T04:13:34Z Previous work has shown that higher incubation temperatures produce newly hatched salmon (Salmo salar) with fewer but larger muscle fibres than salmon incubated at colder temperatures. Our purpose was to study the effect of differing incubation temperatures on the development of muscle cellularity in posthatch salmon. Eggs from a single pair of Atlantic salmon were incubated at either the stream ambient temperature (fluctuating around 5 °C prehatch and gradually rising to around 10 °C posthatch) or at 11 °C. From each group, samples were taken at hatching, first feeding, and at 3 weeks after first feeding. During the period of exogenous feeding under study, the ambient group grew faster. The number of muscle fibres remained lower in the 11 °C fish but there was more muscle fibre hypertrophy in the ambient group so that the difference in muscle fibre size seen at hatching was eliminated by 3 weeks after first feeding. It is suggested that reduced number of nuclei in the 11 °C fish at hatching may contribute to the relatively reduced fibre hypertrophy in these fish. The results indicate that embryonic myogenesis can affect the posthatch growth of salmon at least up to 3 weeks after first feeding. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 52 4 675 680 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
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English |
description |
Previous work has shown that higher incubation temperatures produce newly hatched salmon (Salmo salar) with fewer but larger muscle fibres than salmon incubated at colder temperatures. Our purpose was to study the effect of differing incubation temperatures on the development of muscle cellularity in posthatch salmon. Eggs from a single pair of Atlantic salmon were incubated at either the stream ambient temperature (fluctuating around 5 °C prehatch and gradually rising to around 10 °C posthatch) or at 11 °C. From each group, samples were taken at hatching, first feeding, and at 3 weeks after first feeding. During the period of exogenous feeding under study, the ambient group grew faster. The number of muscle fibres remained lower in the 11 °C fish but there was more muscle fibre hypertrophy in the ambient group so that the difference in muscle fibre size seen at hatching was eliminated by 3 weeks after first feeding. It is suggested that reduced number of nuclei in the 11 °C fish at hatching may contribute to the relatively reduced fibre hypertrophy in these fish. The results indicate that embryonic myogenesis can affect the posthatch growth of salmon at least up to 3 weeks after first feeding. |
format |
Article in Journal/Newspaper |
author |
Nathanailides, C. Stickland, N. C Lopez-Albors, O. |
spellingShingle |
Nathanailides, C. Stickland, N. C Lopez-Albors, O. Influence of prehatch temperature on the development of muscle cellularity in posthatch Atlantic salmon ( Salmo salar) |
author_facet |
Nathanailides, C. Stickland, N. C Lopez-Albors, O. |
author_sort |
Nathanailides, C. |
title |
Influence of prehatch temperature on the development of muscle cellularity in posthatch Atlantic salmon ( Salmo salar) |
title_short |
Influence of prehatch temperature on the development of muscle cellularity in posthatch Atlantic salmon ( Salmo salar) |
title_full |
Influence of prehatch temperature on the development of muscle cellularity in posthatch Atlantic salmon ( Salmo salar) |
title_fullStr |
Influence of prehatch temperature on the development of muscle cellularity in posthatch Atlantic salmon ( Salmo salar) |
title_full_unstemmed |
Influence of prehatch temperature on the development of muscle cellularity in posthatch Atlantic salmon ( Salmo salar) |
title_sort |
influence of prehatch temperature on the development of muscle cellularity in posthatch atlantic salmon ( salmo salar) |
publisher |
Canadian Science Publishing |
publishDate |
1995 |
url |
http://dx.doi.org/10.1139/f95-068 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-068 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 52, issue 4, page 675-680 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f95-068 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
52 |
container_issue |
4 |
container_start_page |
675 |
op_container_end_page |
680 |
_version_ |
1810432372724727808 |