Characterisation of the swimming muscles of two Subantarctic notothenoids
The histochemical characteristics and distribution of muscle fibre types have been investigated in the swimming muscles of the róbalo, Eleginops maclovinus and the lorcho, Patagonotothen tessellata, Subantarctic notothenioids that inhabit the Beagle Channel. The fibre types were differentiated on th...
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Consejo Superior de Investigaciones Científicas
1999
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ftdoajarticles:oai:doaj.org/article:d6474cd2825c45b0a52a7be17904af27 2023-05-15T13:34:26+02:00 Characterisation of the swimming muscles of two Subantarctic notothenoids Daniel Alfredo Fernández Jorge Calvo Ian Alistair Johnston 1999-12-01T00:00:00Z https://doi.org/10.3989/scimar.1999.63s1477 https://doaj.org/article/d6474cd2825c45b0a52a7be17904af27 EN eng Consejo Superior de Investigaciones Científicas http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/937 https://doaj.org/toc/0214-8358 https://doaj.org/toc/1886-8134 0214-8358 1886-8134 doi:10.3989/scimar.1999.63s1477 https://doaj.org/article/d6474cd2825c45b0a52a7be17904af27 Scientia Marina, Vol 63, Iss S1, Pp 477-484 (1999) subantarctic notothenioids muscle histochemistry swimming muscles myosin atpase Aquaculture. Fisheries. Angling SH1-691 article 1999 ftdoajarticles https://doi.org/10.3989/scimar.1999.63s1477 2022-12-31T15:27:01Z The histochemical characteristics and distribution of muscle fibre types have been investigated in the swimming muscles of the róbalo, Eleginops maclovinus and the lorcho, Patagonotothen tessellata, Subantarctic notothenioids that inhabit the Beagle Channel. The fibre types were differentiated on the basis of glycogen and lipid contents and succinate dehydrogenase and myofibrillar ATPase (mATPase) activities. White, red, intermediate and tonic fibres were present in the axial muscle of both species. The same fibre types were identified in the pectoral fin adductor muscles, although the intermediate type was absent. The mATPase technique performed at room temperature (21ºC) allowed a good differentiation of fibre types, overcoming the problems found by previous researchers when applying this technique to Antarctic notothenioids. Four different zones (peripheral, mosaic, main and adjacent to the bone) were found in the adductor profundis muscle. The proportion of the zones varied along the length of the adductor muscle. For both species, the percentage of red fibres found in the axial muscles was less than 5%, indicating that sustained swimming ability is not dependent on these muscles. The pectoral muscle mass/carcase mass ratio was significantly greater in E. maclovinus than in P. tessellata, reflecting a greater capacity for sustained swimming using pectoral fins. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic Scientia Marina 63 S1 477 484 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
subantarctic notothenioids muscle histochemistry swimming muscles myosin atpase Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
subantarctic notothenioids muscle histochemistry swimming muscles myosin atpase Aquaculture. Fisheries. Angling SH1-691 Daniel Alfredo Fernández Jorge Calvo Ian Alistair Johnston Characterisation of the swimming muscles of two Subantarctic notothenoids |
topic_facet |
subantarctic notothenioids muscle histochemistry swimming muscles myosin atpase Aquaculture. Fisheries. Angling SH1-691 |
description |
The histochemical characteristics and distribution of muscle fibre types have been investigated in the swimming muscles of the róbalo, Eleginops maclovinus and the lorcho, Patagonotothen tessellata, Subantarctic notothenioids that inhabit the Beagle Channel. The fibre types were differentiated on the basis of glycogen and lipid contents and succinate dehydrogenase and myofibrillar ATPase (mATPase) activities. White, red, intermediate and tonic fibres were present in the axial muscle of both species. The same fibre types were identified in the pectoral fin adductor muscles, although the intermediate type was absent. The mATPase technique performed at room temperature (21ºC) allowed a good differentiation of fibre types, overcoming the problems found by previous researchers when applying this technique to Antarctic notothenioids. Four different zones (peripheral, mosaic, main and adjacent to the bone) were found in the adductor profundis muscle. The proportion of the zones varied along the length of the adductor muscle. For both species, the percentage of red fibres found in the axial muscles was less than 5%, indicating that sustained swimming ability is not dependent on these muscles. The pectoral muscle mass/carcase mass ratio was significantly greater in E. maclovinus than in P. tessellata, reflecting a greater capacity for sustained swimming using pectoral fins. |
format |
Article in Journal/Newspaper |
author |
Daniel Alfredo Fernández Jorge Calvo Ian Alistair Johnston |
author_facet |
Daniel Alfredo Fernández Jorge Calvo Ian Alistair Johnston |
author_sort |
Daniel Alfredo Fernández |
title |
Characterisation of the swimming muscles of two Subantarctic notothenoids |
title_short |
Characterisation of the swimming muscles of two Subantarctic notothenoids |
title_full |
Characterisation of the swimming muscles of two Subantarctic notothenoids |
title_fullStr |
Characterisation of the swimming muscles of two Subantarctic notothenoids |
title_full_unstemmed |
Characterisation of the swimming muscles of two Subantarctic notothenoids |
title_sort |
characterisation of the swimming muscles of two subantarctic notothenoids |
publisher |
Consejo Superior de Investigaciones Científicas |
publishDate |
1999 |
url |
https://doi.org/10.3989/scimar.1999.63s1477 https://doaj.org/article/d6474cd2825c45b0a52a7be17904af27 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Scientia Marina, Vol 63, Iss S1, Pp 477-484 (1999) |
op_relation |
http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/937 https://doaj.org/toc/0214-8358 https://doaj.org/toc/1886-8134 0214-8358 1886-8134 doi:10.3989/scimar.1999.63s1477 https://doaj.org/article/d6474cd2825c45b0a52a7be17904af27 |
op_doi |
https://doi.org/10.3989/scimar.1999.63s1477 |
container_title |
Scientia Marina |
container_volume |
63 |
container_issue |
S1 |
container_start_page |
477 |
op_container_end_page |
484 |
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1766052675069149184 |