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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Published in:Scientia Marina
Main Authors: Valenzuela, Andrea, Bustamante, Carlos, Lamilla, Julio
Format: Article in Journal/Newspaper
Language:English
Published: Consejo Superior de Investigaciones Científicas 2008
Subjects:
shark bycatch
teeth
dermal denticles
neurocraneum morphology
descarte de tiburones
dientes
dentículos dérmicos
morfología del neurocráneo
spiny dogfish
Squalus acanthias
Online Access:https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/820
https://doi.org/10.3989/scimar.2008.72n2231
id ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/820
record_format openpolar
institution Open Polar
collection Scientia Marina (E-Journal)
op_collection_id ftjscientiamarin
language English
topic shark bycatch
teeth
dermal denticles
neurocraneum morphology
descarte de tiburones
dientes
dentículos dérmicos
morfología del neurocráneo
spellingShingle shark bycatch
teeth
dermal denticles
neurocraneum morphology
descarte de tiburones
dientes
dentículos dérmicos
morfología del neurocráneo
Valenzuela, Andrea
Bustamante, Carlos
Lamilla, Julio
Morphological characteristics of five bycatch sharks caught by southern Chilean demersal longline fisheries
topic_facet shark bycatch
teeth
dermal denticles
neurocraneum morphology
descarte de tiburones
dientes
dentículos dérmicos
morfología del neurocráneo
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). El descarte de tiburones en las pesquerías demersales artesanales de congrio dorado (Genypterus blacodes) y de la raya volantín (Dipturus chilensis) es frecuente dentro de sus faenas de pesca, sin embargo, no existe un monitoreo sobre los desembarques que permita controlar este problema. Esto es evidente en especies endémicas, como son la mayoría de los condrictios costeros y de aguas profundas. El principal carácter sistemático de estas especies es su morfología externa, además de la forma del neurocráneo y disposición de dientes y dentículos dérmicos los que nos permiten identificar diferencias específicas. El objetivo de este trabajo es contribuir al conocimiento biológico y taxonómico de cinco especies de tiburones demersales en cuanto a la morfometría del neurocráneo, y morfología de dientes y dentículos dérmicos, de dos especies de Scyliorhínidos, Schroederichthys chilensis y Halaelurus canescens; además de tres Squaliformes, Centroscyllium granulatum, Deania calcea y Squalus acanthias.
format Article in Journal/Newspaper
author Valenzuela, Andrea
Bustamante, Carlos
Lamilla, Julio
author_facet Valenzuela, Andrea
Bustamante, Carlos
Lamilla, Julio
author_sort Valenzuela, Andrea
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://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/820
https://doi.org/10.3989/scimar.2008.72n2231
genre spiny dogfish
Squalus acanthias
genre_facet spiny dogfish
Squalus acanthias
op_source Scientia Marina; Vol. 72 No. 2 (2008); 231-237
Scientia Marina; Vol. 72 Núm. 2 (2008); 231-237
1886-8134
0214-8358
10.3989/scimar.2008.72n2
op_relation https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/820/861
Applegate, S.P. – 1965. Tooth terminology and variation in sharks with special reference to the sand shark, Carcharias Taurus Rafinesque. Nat. Hist. Mus. Los Angeles, Contr. Sci, 086: 1-18.
Bonfil, R. – 1994. Overview of world elasmobranch fisheries. FAO Fish.Tech. 341: 1-119.
Brander, K. – 1981. Disappearance of common skate Raia batis from Irish Sea. Nature, 290: 48-49. doi:10.1038/290048a0
Chirichigno, N. – 1974. Clave para identificar los peces marinos del Perú. Instituto del Mar del Peru, Callao.
Compagno, L.J.V. – 1984. FAO Species Catalogue. Vol. 4. Sharks of the World. An annotated and illustrated catalogue of sharks species know to date. FAO Fish. Biol. Synop. (125), vol. 4, pt 1: 1-250.
Compagno, L.J.V. – 1988. Sharks of the order Carcharhiniformes. Princeton University Press, New Jersey.
Compagno, L.J.V. – 2001. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. FAO Species Catalogue for Fishery Purposes 1 (2): 1-269.
Deynat, P.P. – 2000. Les denticules myrmécoïdes, un noveau caractère diagnostique pour les Rajidé (Chondricties, Batoydea). Ann Sci. Nat., 21 :65-80
Gravendeel, R., W. Van neer and D. Brinkhuizen. – 2002. An identification key for dermal denticles of Rajidae from the North Sea. Int. J. Osteoarchaeol., 12: 420-441. doi:10.1002/oa.645
Hall, M., D. Alverson and K. Metuzals. – 2000. By-Catch: Problems and Solutions. Mar. Poll. Bull., 41 (1-6): 204-219.
Ishiyama, R. – 1958. Studies on the rajid fishes (Rajidae) found in the waters around Japan. J. Shimonoseki Coll. Fish., 7: 193-394.
Johns, M.J., C.R Barnes and M.J. Orchard. – 1997. Taxonomy and biostratigraphy of Middle and Late Triassic elasmobranch ichthyoliths from north-eastern British Columbia. Geol. Surv. Can. Bull., 502: 1-235
Lamilla, J. – 2003. Life history of deep-sea Chilean Chondrichthyan. Conservation and Management of Deep-sea Chondrichthyan Fishes. Deep Sea Conf. 2003: 4
Lamilla J. and S. Saez. – 2003. Clave taxonómica para el reconocimiento de especies de rayas chilenas (Chondrichthyes, Batoidea). Inv. Mar. Valparaíso, 31(2) 3:16.
Lamilla, J. and C. Bustamante. – 2005. Guía de Campo para el reconocimiento de especies de Tiburones, Rayas y Quimeras. Oceana 17: 1-72
Leible, M., D.M. Dittus and C.G. Belmar. – 1981. Atlas anatómico de la pintarroja, Schroederichthys chilensis. Universidad Católica de Chile, Talcahuano.
Meléndez, R. and D. Meneses. – 1989. Tiburones del Talud Continental recolectados entre Arica (18º30’S) e Isla Mocha (38º30’S). Chile. Inv. Mar. Valparaíso, 17: 3-37.
Stevens J.D., R. Bonfil, K. Dulvy and T.A. Walker. – 2000. The effects of fishing on sharks, rays, and chimaeras (Chondrichthyan), and the implications for marine ecosystems. ICES J. Mar. Sci., 57: 476-494. doi:10.1006/jmsc.2000.0724
Sho Tanaka S., T. Kitamura and H. Nakano. -2002. Identification of shark species by SEM observation of denticle of shark fins. Col. Vol.Sci.Pap. ICCAT, 54 (4): 1386-1394. (2002)
Valenzuela A., R. Saldivia, C. Bustamante and J. Lamilla. – 2006. Diferenciación morfológica de tres especies de Scyliorhinidae mediante dentículos dérmicos, Halelururs canescens (Günther, 1878), Schroederichthys chilensis (Guichenot, 1848) y Schroederichthys bivius (Smith, 1938) (Chondrichthyes: Scyliorhinidae). XXVI Congr. Cienc. Mar, Iquique.
Walker, P.A. and J.R.G. Hislop. – 1998. Sensitive skates or resilient rays? Spatial and temporal shifts in ray species composition in the central and north-western North Sea between 1930 and the present day. ICES J. Mar. Sci., 55: 392-402. doi:10.1006/jmsc.1997.0325
Wheeler A. and A.K. Jones. – 1989. Fishes. Cambridge Manuals in Archaeology. Cambridge University, Cambridge.
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/820
doi:10.3989/scimar.2008.72n2231
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op_doi https://doi.org/10.3989/scimar.2008.72n2231
https://doi.org/10.3989/scimar.2008.72n2
https://doi.org/10.1038/290048a0
https://doi.org/10.1002/oa.645
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spelling ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/820 2023-05-15T18:51:08+02:00 Morphological characteristics of five bycatch sharks caught by southern Chilean demersal longline fisheries Características morfológicas de cinco tiburones capturados por la pesquería palangrera demersal del sur de Chile Valenzuela, Andrea Bustamante, Carlos Lamilla, Julio 2008-06-30 application/pdf https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/820 https://doi.org/10.3989/scimar.2008.72n2231 eng eng Consejo Superior de Investigaciones Científicas https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/820/861 Applegate, S.P. – 1965. Tooth terminology and variation in sharks with special reference to the sand shark, Carcharias Taurus Rafinesque. Nat. Hist. Mus. Los Angeles, Contr. Sci, 086: 1-18. Bonfil, R. – 1994. Overview of world elasmobranch fisheries. FAO Fish.Tech. 341: 1-119. Brander, K. – 1981. Disappearance of common skate Raia batis from Irish Sea. Nature, 290: 48-49. doi:10.1038/290048a0 Chirichigno, N. – 1974. Clave para identificar los peces marinos del Perú. Instituto del Mar del Peru, Callao. Compagno, L.J.V. – 1984. FAO Species Catalogue. Vol. 4. Sharks of the World. An annotated and illustrated catalogue of sharks species know to date. FAO Fish. Biol. Synop. (125), vol. 4, pt 1: 1-250. Compagno, L.J.V. – 1988. Sharks of the order Carcharhiniformes. Princeton University Press, New Jersey. Compagno, L.J.V. – 2001. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. FAO Species Catalogue for Fishery Purposes 1 (2): 1-269. Deynat, P.P. – 2000. Les denticules myrmécoïdes, un noveau caractère diagnostique pour les Rajidé (Chondricties, Batoydea). Ann Sci. Nat., 21 :65-80 Gravendeel, R., W. Van neer and D. Brinkhuizen. – 2002. An identification key for dermal denticles of Rajidae from the North Sea. Int. J. Osteoarchaeol., 12: 420-441. doi:10.1002/oa.645 Hall, M., D. Alverson and K. Metuzals. – 2000. By-Catch: Problems and Solutions. Mar. Poll. Bull., 41 (1-6): 204-219. Ishiyama, R. – 1958. Studies on the rajid fishes (Rajidae) found in the waters around Japan. J. Shimonoseki Coll. Fish., 7: 193-394. Johns, M.J., C.R Barnes and M.J. Orchard. – 1997. Taxonomy and biostratigraphy of Middle and Late Triassic elasmobranch ichthyoliths from north-eastern British Columbia. Geol. Surv. Can. Bull., 502: 1-235 Lamilla, J. – 2003. Life history of deep-sea Chilean Chondrichthyan. Conservation and Management of Deep-sea Chondrichthyan Fishes. Deep Sea Conf. 2003: 4 Lamilla J. and S. Saez. – 2003. Clave taxonómica para el reconocimiento de especies de rayas chilenas (Chondrichthyes, Batoidea). Inv. Mar. Valparaíso, 31(2) 3:16. Lamilla, J. and C. Bustamante. – 2005. Guía de Campo para el reconocimiento de especies de Tiburones, Rayas y Quimeras. Oceana 17: 1-72 Leible, M., D.M. Dittus and C.G. Belmar. – 1981. Atlas anatómico de la pintarroja, Schroederichthys chilensis. Universidad Católica de Chile, Talcahuano. Meléndez, R. and D. Meneses. – 1989. Tiburones del Talud Continental recolectados entre Arica (18º30’S) e Isla Mocha (38º30’S). Chile. Inv. Mar. Valparaíso, 17: 3-37. Stevens J.D., R. Bonfil, K. Dulvy and T.A. Walker. – 2000. The effects of fishing on sharks, rays, and chimaeras (Chondrichthyan), and the implications for marine ecosystems. ICES J. Mar. Sci., 57: 476-494. doi:10.1006/jmsc.2000.0724 Sho Tanaka S., T. Kitamura and H. Nakano. -2002. Identification of shark species by SEM observation of denticle of shark fins. Col. Vol.Sci.Pap. ICCAT, 54 (4): 1386-1394. (2002) Valenzuela A., R. Saldivia, C. Bustamante and J. Lamilla. – 2006. Diferenciación morfológica de tres especies de Scyliorhinidae mediante dentículos dérmicos, Halelururs canescens (Günther, 1878), Schroederichthys chilensis (Guichenot, 1848) y Schroederichthys bivius (Smith, 1938) (Chondrichthyes: Scyliorhinidae). XXVI Congr. Cienc. Mar, Iquique. Walker, P.A. and J.R.G. Hislop. – 1998. Sensitive skates or resilient rays? Spatial and temporal shifts in ray species composition in the central and north-western North Sea between 1930 and the present day. ICES J. Mar. Sci., 55: 392-402. doi:10.1006/jmsc.1997.0325 Wheeler A. and A.K. Jones. – 1989. Fishes. Cambridge Manuals in Archaeology. Cambridge University, Cambridge. https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/820 doi:10.3989/scimar.2008.72n2231 Copyright (c) 2008 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 CC-BY Scientia Marina; Vol. 72 No. 2 (2008); 231-237 Scientia Marina; Vol. 72 Núm. 2 (2008); 231-237 1886-8134 0214-8358 10.3989/scimar.2008.72n2 shark bycatch teeth dermal denticles neurocraneum morphology descarte de tiburones dientes dentículos dérmicos morfología del neurocráneo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed article Artículo revisado por pares 2008 ftjscientiamarin https://doi.org/10.3989/scimar.2008.72n2231 https://doi.org/10.3989/scimar.2008.72n2 https://doi.org/10.1038/290048a0 https://doi.org/10.1002/oa.645 https://doi.org/10.1006/jmsc.2000.0724 2022-03-20T16:30:49Z 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). El descarte de tiburones en las pesquerías demersales artesanales de congrio dorado (Genypterus blacodes) y de la raya volantín (Dipturus chilensis) es frecuente dentro de sus faenas de pesca, sin embargo, no existe un monitoreo sobre los desembarques que permita controlar este problema. Esto es evidente en especies endémicas, como son la mayoría de los condrictios costeros y de aguas profundas. El principal carácter sistemático de estas especies es su morfología externa, además de la forma del neurocráneo y disposición de dientes y dentículos dérmicos los que nos permiten identificar diferencias específicas. El objetivo de este trabajo es contribuir al conocimiento biológico y taxonómico de cinco especies de tiburones demersales en cuanto a la morfometría del neurocráneo, y morfología de dientes y dentículos dérmicos, de dos especies de Scyliorhínidos, Schroederichthys chilensis y Halaelurus canescens; además de tres Squaliformes, Centroscyllium granulatum, Deania calcea y Squalus acanthias. Article in Journal/Newspaper spiny dogfish Squalus acanthias Scientia Marina (E-Journal) Scientia Marina 72 2

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