Daño en invertebrados bentónicos en la captura incidental de la pesquería de vieira patagónica.
Patagonian scallop (Zygochlamys patagonica) fishery catch, at Argentine sea, is mechanically processed on board where non target species and scallops that do not reach the commercial size are separated with metal drums and discarded to sea. The aim of this study was to analyze the direct damage produced to the main bycatch invertebrate species, distinguishing between that caused by trawling and the one generated by the on board selection process. The subsamples were collected during the 2012 assessment cruises carried out on board of commercial vessels equipped with different selection process systems. Sea urchin Sterechinus agassizii, organism with a very fragile body structure, was the most affected species. It was observed that many benthic invertebrates are retained by the on board selection process thus passing to the final stage, reason for which they do not survive. An additional discard point in one of the vessels allows most species to return to sea with a damage similar than when they arrived to deck. The level of damage varied among species and, even within the same species, according to size. The level of damage, specific to each species, is related to the individuals morphology.
Main Authors: | , , , , , , , |
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Format: | Journal Contribution biblioteca |
Language: | Spanish / Castilian |
Published: |
2017
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Subjects: | Pesquería de vieira, Bentos, Zoobentos, Captura incidental, Efectos inducidos por el hombre, Arrastre, Buques pesqueros, Procesamiento de productos pesqueros, Pectinidae, Zygochlamys patagonica, Sterechinus agassizii, Vieira, Erizo, Métodos de captura, ASFA_2015::S::Scallop fisheries, ASFA_2015::B::Benthos, ASFA_2015::Y::Zoobenthos, ASFA_2015::B::By catch, ASFA_2015::M::Man-induced effects, ASFA_2015::T::Trawling, ASFA_2015::C::Catching methods, ASFA_2015::F::Fishing vessels, ASFA_2015::P::Processing fishery products, |
Online Access: | http://hdl.handle.net/1834/12674 |
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dig-aquadocs-1834-126742021-09-18T23:22:12Z Daño en invertebrados bentónicos en la captura incidental de la pesquería de vieira patagónica. Damage to benthic invertebrates in the Patagonian scallop fishery bycatch Escolar, M. Schwartz, M. Marecos, A. Herrera, S. Díaz, R. Schejter, L. Campodónico, S. Bremec, C.S. Pesquería de vieira Bentos Zoobentos Captura incidental Efectos inducidos por el hombre Arrastre Buques pesqueros Procesamiento de productos pesqueros Pectinidae Zygochlamys patagonica Sterechinus agassizii Vieira Erizo Métodos de captura ASFA_2015::S::Scallop fisheries ASFA_2015::B::Benthos ASFA_2015::Y::Zoobenthos ASFA_2015::B::By catch ASFA_2015::M::Man-induced effects ASFA_2015::T::Trawling ASFA_2015::C::Catching methods ASFA_2015::F::Fishing vessels ASFA_2015::P::Processing fishery products Patagonian scallop (Zygochlamys patagonica) fishery catch, at Argentine sea, is mechanically processed on board where non target species and scallops that do not reach the commercial size are separated with metal drums and discarded to sea. The aim of this study was to analyze the direct damage produced to the main bycatch invertebrate species, distinguishing between that caused by trawling and the one generated by the on board selection process. The subsamples were collected during the 2012 assessment cruises carried out on board of commercial vessels equipped with different selection process systems. Sea urchin Sterechinus agassizii, organism with a very fragile body structure, was the most affected species. It was observed that many benthic invertebrates are retained by the on board selection process thus passing to the final stage, reason for which they do not survive. An additional discard point in one of the vessels allows most species to return to sea with a damage similar than when they arrived to deck. The level of damage varied among species and, even within the same species, according to size. The level of damage, specific to each species, is related to the individuals morphology. La captura de la pesquería de vieira patagónica (Zygochlamys patagonica), del mar Argentino, se procesa mecánicamente a bordo donde las especies no objetivo y las vieiras que no alcanzan la talla comercial se separan con rolos selectores y descartan al mar. El objetivo del presente trabajo fue analizar el daño directo que se provoca a las principales especies de invertebrados de la captura incidental, diferenciando entre el daño que ocasiona el arrastre y el que genera el proceso de selección a bordo. Las submuestras se tomaron durante las campañas de evaluación que se realizaron en 2012 a bordo de buques comerciales equipados con distintos sistemas de procesos de selección. El erizo Sterechinus agassizii, organismo con estructura corporal muy frágil, fue la especie más afectada. Se observó que muchos invertebrados bentónicos son retenidos por el proceso de selección a bordo, pasando a la etapa de procesamiento final, por lo que no sobreviven. Un punto adicional de descarte en unos de los buques permite que la mayoría de las especies retornen al mar con un daño similar al que llegaron a cubierta. El nivel de daño varió de una especie a otra, e incluso dentro de una misma especie, varió con la talla. El nivel de daño es especie-específico y está relacionado con la morfología de los individuos. Published 2018-04-26T15:04:10Z 2018-04-26T15:04:10Z 2017 Journal Contribution Refereed 0325-6375 http://hdl.handle.net/1834/12674 es 3465 pp.53-73 Atlántico Sudoccidental Argentina |
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topic |
Pesquería de vieira Bentos Zoobentos Captura incidental Efectos inducidos por el hombre Arrastre Buques pesqueros Procesamiento de productos pesqueros Pectinidae Zygochlamys patagonica Sterechinus agassizii Vieira Erizo Métodos de captura ASFA_2015::S::Scallop fisheries ASFA_2015::B::Benthos ASFA_2015::Y::Zoobenthos ASFA_2015::B::By catch ASFA_2015::M::Man-induced effects ASFA_2015::T::Trawling ASFA_2015::C::Catching methods ASFA_2015::F::Fishing vessels ASFA_2015::P::Processing fishery products Pesquería de vieira Bentos Zoobentos Captura incidental Efectos inducidos por el hombre Arrastre Buques pesqueros Procesamiento de productos pesqueros Pectinidae Zygochlamys patagonica Sterechinus agassizii Vieira Erizo Métodos de captura ASFA_2015::S::Scallop fisheries ASFA_2015::B::Benthos ASFA_2015::Y::Zoobenthos ASFA_2015::B::By catch ASFA_2015::M::Man-induced effects ASFA_2015::T::Trawling ASFA_2015::C::Catching methods ASFA_2015::F::Fishing vessels ASFA_2015::P::Processing fishery products |
spellingShingle |
Pesquería de vieira Bentos Zoobentos Captura incidental Efectos inducidos por el hombre Arrastre Buques pesqueros Procesamiento de productos pesqueros Pectinidae Zygochlamys patagonica Sterechinus agassizii Vieira Erizo Métodos de captura ASFA_2015::S::Scallop fisheries ASFA_2015::B::Benthos ASFA_2015::Y::Zoobenthos ASFA_2015::B::By catch ASFA_2015::M::Man-induced effects ASFA_2015::T::Trawling ASFA_2015::C::Catching methods ASFA_2015::F::Fishing vessels ASFA_2015::P::Processing fishery products Pesquería de vieira Bentos Zoobentos Captura incidental Efectos inducidos por el hombre Arrastre Buques pesqueros Procesamiento de productos pesqueros Pectinidae Zygochlamys patagonica Sterechinus agassizii Vieira Erizo Métodos de captura ASFA_2015::S::Scallop fisheries ASFA_2015::B::Benthos ASFA_2015::Y::Zoobenthos ASFA_2015::B::By catch ASFA_2015::M::Man-induced effects ASFA_2015::T::Trawling ASFA_2015::C::Catching methods ASFA_2015::F::Fishing vessels ASFA_2015::P::Processing fishery products Escolar, M. Schwartz, M. Marecos, A. Herrera, S. Díaz, R. Schejter, L. Campodónico, S. Bremec, C.S. Daño en invertebrados bentónicos en la captura incidental de la pesquería de vieira patagónica. |
description |
Patagonian scallop (Zygochlamys patagonica) fishery catch, at Argentine sea, is mechanically processed on board where non target species and scallops that do not reach the commercial size are separated with metal drums and discarded to sea. The aim of this study was to analyze the direct damage produced to the main bycatch invertebrate species, distinguishing between that caused by trawling and the one generated by the on board selection process. The subsamples were collected during the 2012 assessment cruises carried out on board of commercial vessels equipped with different selection process systems. Sea urchin Sterechinus agassizii, organism with a very fragile body structure, was the most affected species. It was observed that many benthic invertebrates are retained by the on board selection process thus passing to the final stage, reason for which they do not survive. An additional discard point in one of the vessels allows most species to return to sea with a damage similar than when they arrived to deck. The level of damage varied among species and, even within the same species, according to size. The level of damage, specific to each species, is related to the individuals morphology. |
format |
Journal Contribution |
topic_facet |
Pesquería de vieira Bentos Zoobentos Captura incidental Efectos inducidos por el hombre Arrastre Buques pesqueros Procesamiento de productos pesqueros Pectinidae Zygochlamys patagonica Sterechinus agassizii Vieira Erizo Métodos de captura ASFA_2015::S::Scallop fisheries ASFA_2015::B::Benthos ASFA_2015::Y::Zoobenthos ASFA_2015::B::By catch ASFA_2015::M::Man-induced effects ASFA_2015::T::Trawling ASFA_2015::C::Catching methods ASFA_2015::F::Fishing vessels ASFA_2015::P::Processing fishery products |
author |
Escolar, M. Schwartz, M. Marecos, A. Herrera, S. Díaz, R. Schejter, L. Campodónico, S. Bremec, C.S. |
author_facet |
Escolar, M. Schwartz, M. Marecos, A. Herrera, S. Díaz, R. Schejter, L. Campodónico, S. Bremec, C.S. |
author_sort |
Escolar, M. |
title |
Daño en invertebrados bentónicos en la captura incidental de la pesquería de vieira patagónica. |
title_short |
Daño en invertebrados bentónicos en la captura incidental de la pesquería de vieira patagónica. |
title_full |
Daño en invertebrados bentónicos en la captura incidental de la pesquería de vieira patagónica. |
title_fullStr |
Daño en invertebrados bentónicos en la captura incidental de la pesquería de vieira patagónica. |
title_full_unstemmed |
Daño en invertebrados bentónicos en la captura incidental de la pesquería de vieira patagónica. |
title_sort |
daño en invertebrados bentónicos en la captura incidental de la pesquería de vieira patagónica. |
publishDate |
2017 |
url |
http://hdl.handle.net/1834/12674 |
work_keys_str_mv |
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