Muscle growth in the Antarctic teleost, Notothenia neglecta (Nybelin)
A histochemical and electron microscopy study was carried out on muscle growth in demersal stages of the Antarctic teleost Notothenia neglecta Nybelin. The total number of myotomal muscle fibres was similar in fish ranging in body mass from 11.9g to 889g. Post-anal myotomes contained around 17,000 s...
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Cambridge University Press (CUP)
1991
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Online Access: | http://dx.doi.org/10.1017/s0954102091000068 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102091000068 |
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crcambridgeupr:10.1017/s0954102091000068 2024-03-03T08:37:35+00:00 Muscle growth in the Antarctic teleost, Notothenia neglecta (Nybelin) Battram, John C. Johnston, Ian A. 1991 http://dx.doi.org/10.1017/s0954102091000068 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102091000068 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 3, issue 1, page 29-33 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 1991 crcambridgeupr https://doi.org/10.1017/s0954102091000068 2024-02-08T08:38:13Z A histochemical and electron microscopy study was carried out on muscle growth in demersal stages of the Antarctic teleost Notothenia neglecta Nybelin. The total number of myotomal muscle fibres was similar in fish ranging in body mass from 11.9g to 889g. Post-anal myotomes contained around 17,000 slow muscle fibres and 70,000 fast muscle fibres. Myosatellite cells were extremely rare. The diameter of fast fibres varied from <10μm to 130μm in the smallest, and from >40μm to 450μm in the largest fish studied. Slow muscle fibre diameters in the largest fish ranged from >30μm to 260μm. Even the largest diameter slow fibres contained significant numbers of mitochondria, which suggests that the diffusion of oxygen does not limit metabolism. The results confirm that muscle fibre hyperplasia ceases prior to the demersal stages of the life history, and that subsequent muscle growth is entirely via the hypertrophy of existing fibres. Comparative studies suggest that this may be one of the factors contributing to the relatively slow rate of somatic growth in this species. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Cambridge University Press Antarctic The Antarctic Antarctic Science 3 1 29 33 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Battram, John C. Johnston, Ian A. Muscle growth in the Antarctic teleost, Notothenia neglecta (Nybelin) |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
A histochemical and electron microscopy study was carried out on muscle growth in demersal stages of the Antarctic teleost Notothenia neglecta Nybelin. The total number of myotomal muscle fibres was similar in fish ranging in body mass from 11.9g to 889g. Post-anal myotomes contained around 17,000 slow muscle fibres and 70,000 fast muscle fibres. Myosatellite cells were extremely rare. The diameter of fast fibres varied from <10μm to 130μm in the smallest, and from >40μm to 450μm in the largest fish studied. Slow muscle fibre diameters in the largest fish ranged from >30μm to 260μm. Even the largest diameter slow fibres contained significant numbers of mitochondria, which suggests that the diffusion of oxygen does not limit metabolism. The results confirm that muscle fibre hyperplasia ceases prior to the demersal stages of the life history, and that subsequent muscle growth is entirely via the hypertrophy of existing fibres. Comparative studies suggest that this may be one of the factors contributing to the relatively slow rate of somatic growth in this species. |
format |
Article in Journal/Newspaper |
author |
Battram, John C. Johnston, Ian A. |
author_facet |
Battram, John C. Johnston, Ian A. |
author_sort |
Battram, John C. |
title |
Muscle growth in the Antarctic teleost, Notothenia neglecta (Nybelin) |
title_short |
Muscle growth in the Antarctic teleost, Notothenia neglecta (Nybelin) |
title_full |
Muscle growth in the Antarctic teleost, Notothenia neglecta (Nybelin) |
title_fullStr |
Muscle growth in the Antarctic teleost, Notothenia neglecta (Nybelin) |
title_full_unstemmed |
Muscle growth in the Antarctic teleost, Notothenia neglecta (Nybelin) |
title_sort |
muscle growth in the antarctic teleost, notothenia neglecta (nybelin) |
publisher |
Cambridge University Press (CUP) |
publishDate |
1991 |
url |
http://dx.doi.org/10.1017/s0954102091000068 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102091000068 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctic Science |
genre_facet |
Antarc* Antarctic Antarctic Science |
op_source |
Antarctic Science volume 3, issue 1, page 29-33 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102091000068 |
container_title |
Antarctic Science |
container_volume |
3 |
container_issue |
1 |
container_start_page |
29 |
op_container_end_page |
33 |
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1792499891784646656 |