Morphological characteristics of five bycatch sharks caught by southern Chilean demersal longline fisheries
The by-catch of sharks in artisanal demersal pink cusk-eel (Genypterus blacodes) and yellownose skate (Dipturus chilensis) fisheries is frequent within their fishing effort. Nevertheless, there is no registry of landings, which could help to control this problem. This is particularly evident for end...
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Consejo Superior de Investigaciones Científicas
2008
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ftdoajarticles:oai:doaj.org/article:aa214319aa9341a49e33dce84b734727 2023-05-15T18:51:07+02:00 Morphological characteristics of five bycatch sharks caught by southern Chilean demersal longline fisheries Andrea Valenzuela Carlos Bustamante Julio Lamilla 2008-06-01T00:00:00Z https://doi.org/10.3989/scimar.2008.72n2231 https://doaj.org/article/aa214319aa9341a49e33dce84b734727 EN eng Consejo Superior de Investigaciones Científicas http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/820 https://doaj.org/toc/0214-8358 https://doaj.org/toc/1886-8134 0214-8358 1886-8134 doi:10.3989/scimar.2008.72n2231 https://doaj.org/article/aa214319aa9341a49e33dce84b734727 Scientia Marina, Vol 72, Iss 2, Pp 231-237 (2008) shark bycatch teeth dermal denticles neurocraneum morphology Aquaculture. Fisheries. Angling SH1-691 article 2008 ftdoajarticles https://doi.org/10.3989/scimar.2008.72n2231 2022-12-31T08:57:51Z The by-catch of sharks in artisanal demersal pink cusk-eel (Genypterus blacodes) and yellownose skate (Dipturus chilensis) fisheries is frequent within their fishing effort. Nevertheless, there is no registry of landings, which could help to control this problem. This is particularly evident for endemic species, which includes most coastal and deep water Chilean sharks. The main systematic characteristic of these Chondrichthyan species is the external morphology of the neurocraneum. The form and arrangement of the teeth and dermal denticles allow specific differences to be identified. The objective of this paper is to contribute to the biology and systematic knowledge of demersal shark species, teeth and dermal denticle morphology and neurocraneum morphometrics of two species of Scyliorhinids, the redspotted catshark (Schroederichthys chilensis) and the dusky catshark (Halaelurus canescens), as well as three Squaliforms, the granular dogfish (Centroscyllium granulatum), the birdbeak dogfish (Deania calcea) and the spiny dogfish (Squalus acanthias). Article in Journal/Newspaper spiny dogfish Squalus acanthias Directory of Open Access Journals: DOAJ Articles Scientia Marina 72 2 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
shark bycatch teeth dermal denticles neurocraneum morphology Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
shark bycatch teeth dermal denticles neurocraneum morphology Aquaculture. Fisheries. Angling SH1-691 Andrea Valenzuela Carlos Bustamante Julio Lamilla Morphological characteristics of five bycatch sharks caught by southern Chilean demersal longline fisheries |
topic_facet |
shark bycatch teeth dermal denticles neurocraneum morphology Aquaculture. Fisheries. Angling SH1-691 |
description |
The by-catch of sharks in artisanal demersal pink cusk-eel (Genypterus blacodes) and yellownose skate (Dipturus chilensis) fisheries is frequent within their fishing effort. Nevertheless, there is no registry of landings, which could help to control this problem. This is particularly evident for endemic species, which includes most coastal and deep water Chilean sharks. The main systematic characteristic of these Chondrichthyan species is the external morphology of the neurocraneum. The form and arrangement of the teeth and dermal denticles allow specific differences to be identified. The objective of this paper is to contribute to the biology and systematic knowledge of demersal shark species, teeth and dermal denticle morphology and neurocraneum morphometrics of two species of Scyliorhinids, the redspotted catshark (Schroederichthys chilensis) and the dusky catshark (Halaelurus canescens), as well as three Squaliforms, the granular dogfish (Centroscyllium granulatum), the birdbeak dogfish (Deania calcea) and the spiny dogfish (Squalus acanthias). |
format |
Article in Journal/Newspaper |
author |
Andrea Valenzuela Carlos Bustamante Julio Lamilla |
author_facet |
Andrea Valenzuela Carlos Bustamante Julio Lamilla |
author_sort |
Andrea Valenzuela |
title |
Morphological characteristics of five bycatch sharks caught by southern Chilean demersal longline fisheries |
title_short |
Morphological characteristics of five bycatch sharks caught by southern Chilean demersal longline fisheries |
title_full |
Morphological characteristics of five bycatch sharks caught by southern Chilean demersal longline fisheries |
title_fullStr |
Morphological characteristics of five bycatch sharks caught by southern Chilean demersal longline fisheries |
title_full_unstemmed |
Morphological characteristics of five bycatch sharks caught by southern Chilean demersal longline fisheries |
title_sort |
morphological characteristics of five bycatch sharks caught by southern chilean demersal longline fisheries |
publisher |
Consejo Superior de Investigaciones Científicas |
publishDate |
2008 |
url |
https://doi.org/10.3989/scimar.2008.72n2231 https://doaj.org/article/aa214319aa9341a49e33dce84b734727 |
genre |
spiny dogfish Squalus acanthias |
genre_facet |
spiny dogfish Squalus acanthias |
op_source |
Scientia Marina, Vol 72, Iss 2, Pp 231-237 (2008) |
op_relation |
http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/820 https://doaj.org/toc/0214-8358 https://doaj.org/toc/1886-8134 0214-8358 1886-8134 doi:10.3989/scimar.2008.72n2231 https://doaj.org/article/aa214319aa9341a49e33dce84b734727 |
op_doi |
https://doi.org/10.3989/scimar.2008.72n2231 |
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Scientia Marina |
container_volume |
72 |
container_issue |
2 |
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1766244910507229184 |