Deep-sea sharks as by-catch of an experimental fishing survey for black scabbardfishes (Aphanopus spp.) off the Canary Islands (NE Atlantic)

The deep-sea sharks associated as by-catch of the Madeiran midwater drifting longline fishery for scabbardfishes (Aphanopus spp.) were investigated by means of an experimental survey at 800-1200 m depth within the Canary Islands Exclusive Economic Zone, whose fishing grounds have been exploited duri...

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Main Authors: Mafalda Freitas, Luísa Costa, João Delgado, Sebastián Jiménez, Viriato Timóteo, Joana Vasconcelos, José A. González
Format: Article
Language:English
Published: Consejo Superior de Investigaciones Científicas 2018-12-01
Series:Scientia Marina
Subjects:
Online Access:http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1772
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author Mafalda Freitas
Luísa Costa
João Delgado
Sebastián Jiménez
Viriato Timóteo
Joana Vasconcelos
José A. González
author_facet Mafalda Freitas
Luísa Costa
João Delgado
Sebastián Jiménez
Viriato Timóteo
Joana Vasconcelos
José A. González
author_sort Mafalda Freitas
collection DOAJ
description The deep-sea sharks associated as by-catch of the Madeiran midwater drifting longline fishery for scabbardfishes (Aphanopus spp.) were investigated by means of an experimental survey at 800-1200 m depth within the Canary Islands Exclusive Economic Zone, whose fishing grounds have been exploited during the past 15 years. Nine species of chondrichthyans were identified, belonging to five families: Pseudotriakidae, Centrophoridae, Etmopteridae, Somniosidae and Chimaeridae. Data on length, weight and sex ratio for the 436 chondrichthyan individuals caught in the March 2009 survey are given. Several voucher specimens of each species caught were deposited in the collections of the Natural History Museum of Funchal.
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spelling doaj.art-0a34d1eadad9458eb1683dd4b940c4562022-12-21T21:56:39ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342018-12-0182S115115410.3989/scimar.04793.03A1737Deep-sea sharks as by-catch of an experimental fishing survey for black scabbardfishes (Aphanopus spp.) off the Canary Islands (NE Atlantic)Mafalda Freitas0https://orcid.org/0000-0002-2758-7177Luísa Costa1https://orcid.org/0000-0001-9107-6200João Delgado2https://orcid.org/0000-0003-4268-7202Sebastián Jiménez3https://orcid.org/0000-0002-6534-4096Viriato Timóteo4Joana Vasconcelos5https://orcid.org/0000-0003-3880-2554José A. González6https://orcid.org/0000-0001-8584-6731OOM - Funchal Marine Biology Station and Marine and Environmental Sciences Centre (MARE) - OOM - Funchal Natural History MuseumOOM - Funchal Marine Biology Station and Marine and Environmental Sciences Centre (MARE)OOM - Research Service, Regional Directorate of FisheriesInstituto Español de Oceanografía, Centro Oceanográfico de CanariasOOM - Research Service, Regional Directorate of FisheriesOOM - Research Service, Regional Directorate of FisheriesApplied Marine Ecology and Fisheries, i-UNAT, Universidad de Las Palmas de Gran CanariaThe deep-sea sharks associated as by-catch of the Madeiran midwater drifting longline fishery for scabbardfishes (Aphanopus spp.) were investigated by means of an experimental survey at 800-1200 m depth within the Canary Islands Exclusive Economic Zone, whose fishing grounds have been exploited during the past 15 years. Nine species of chondrichthyans were identified, belonging to five families: Pseudotriakidae, Centrophoridae, Etmopteridae, Somniosidae and Chimaeridae. Data on length, weight and sex ratio for the 436 chondrichthyan individuals caught in the March 2009 survey are given. Several voucher specimens of each species caught were deposited in the collections of the Natural History Museum of Funchal.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1772by-catchdeep-sea chondrichthyesmidwater drifting longlinene atlantic
spellingShingle Mafalda Freitas
Luísa Costa
João Delgado
Sebastián Jiménez
Viriato Timóteo
Joana Vasconcelos
José A. González
Deep-sea sharks as by-catch of an experimental fishing survey for black scabbardfishes (Aphanopus spp.) off the Canary Islands (NE Atlantic)
Scientia Marina
by-catch
deep-sea chondrichthyes
midwater drifting longline
ne atlantic
title Deep-sea sharks as by-catch of an experimental fishing survey for black scabbardfishes (Aphanopus spp.) off the Canary Islands (NE Atlantic)
title_full Deep-sea sharks as by-catch of an experimental fishing survey for black scabbardfishes (Aphanopus spp.) off the Canary Islands (NE Atlantic)
title_fullStr Deep-sea sharks as by-catch of an experimental fishing survey for black scabbardfishes (Aphanopus spp.) off the Canary Islands (NE Atlantic)
title_full_unstemmed Deep-sea sharks as by-catch of an experimental fishing survey for black scabbardfishes (Aphanopus spp.) off the Canary Islands (NE Atlantic)
title_short Deep-sea sharks as by-catch of an experimental fishing survey for black scabbardfishes (Aphanopus spp.) off the Canary Islands (NE Atlantic)
title_sort deep sea sharks as by catch of an experimental fishing survey for black scabbardfishes aphanopus spp off the canary islands ne atlantic
topic by-catch
deep-sea chondrichthyes
midwater drifting longline
ne atlantic
url http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1772
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