Estimate of seabird by-catch along the Patagonian Shelf by Argentine longline fishing vessels, 1999-2001

The incidental mortality of albatrosses Diomedeidae and petrels Procellariidae by longline fishing vessels, has been assessed and analysed in several areas of the globe. We provide the first direct estimates of incidental mortality rates of albatrosses and petrels along the Argentine Shelf and shelf...

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Autores principales: Favero, M., Khatchikian, C.E., Arias, A., Rodriguez, M.P.S., Canete, G., Mariano-Jelicich, R.
Formato: JOUR
Lenguaje:English
Materias:
bycatch
fishing vessel
mortality
seabird
Argentine Shelf
Atlantic Ocean
Argentina (fish)
Aves
Ciconiiformes
Diomedea
Diomedea melanophris
Diomedeidae
Procellaria
Procellaria aequinoctialis
Procellariidae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09592709_v13_n4_p273_Favero
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_09592709_v13_n4_p273_Favero
record_format dspace
spelling todo:paper_09592709_v13_n4_p273_Favero2023-10-03T15:52:42Z Estimate of seabird by-catch along the Patagonian Shelf by Argentine longline fishing vessels, 1999-2001 Favero, M. Khatchikian, C.E. Arias, A. Rodriguez, M.P.S. Canete, G. Mariano-Jelicich, R. bycatch fishing vessel mortality seabird Argentine Shelf Atlantic Ocean Argentina (fish) Aves Ciconiiformes Diomedea Diomedea melanophris Diomedeidae Procellaria Procellaria aequinoctialis Procellariidae The incidental mortality of albatrosses Diomedeidae and petrels Procellariidae by longline fishing vessels, has been assessed and analysed in several areas of the globe. We provide the first direct estimates of incidental mortality rates of albatrosses and petrels along the Argentine Shelf and shelf break. The estimated by-catch rate for the whole period analysed (1999-200l) was 0.04 birds/1,000 hooks, with a maximum of 0.20 birds/1,000 hooks observed in 1999. Annual captures averaged 1,160 birds; however, the large variation observed indicates that annual by-catch may be in the order of thousands, with around 10,000 seabirds being killed by longliners through the study period. Most of the captures were observed along the Patagonian shelf break. At least 12 bird species were incidentally taken, with Black-browed Albatrosses Thalassarche melanophris and White-chinned Petrels Procellaria aequinoctialis accounting for about 80% of total captures. The information provided in this study allowed the design and future implementation of mitigation measures and new survey methods onboard longliners operating in Atlantic waters on the Argentine shelf. JOUR English info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09592709_v13_n4_p273_Favero
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language English
orig_language_str_mv English
topic bycatch
fishing vessel
mortality
seabird
Argentine Shelf
Atlantic Ocean
Argentina (fish)
Aves
Ciconiiformes
Diomedea
Diomedea melanophris
Diomedeidae
Procellaria
Procellaria aequinoctialis
Procellariidae
spellingShingle bycatch
fishing vessel
mortality
seabird
Argentine Shelf
Atlantic Ocean
Argentina (fish)
Aves
Ciconiiformes
Diomedea
Diomedea melanophris
Diomedeidae
Procellaria
Procellaria aequinoctialis
Procellariidae
Favero, M.
Khatchikian, C.E.
Arias, A.
Rodriguez, M.P.S.
Canete, G.
Mariano-Jelicich, R.
Estimate of seabird by-catch along the Patagonian Shelf by Argentine longline fishing vessels, 1999-2001
topic_facet bycatch
fishing vessel
mortality
seabird
Argentine Shelf
Atlantic Ocean
Argentina (fish)
Aves
Ciconiiformes
Diomedea
Diomedea melanophris
Diomedeidae
Procellaria
Procellaria aequinoctialis
Procellariidae
description The incidental mortality of albatrosses Diomedeidae and petrels Procellariidae by longline fishing vessels, has been assessed and analysed in several areas of the globe. We provide the first direct estimates of incidental mortality rates of albatrosses and petrels along the Argentine Shelf and shelf break. The estimated by-catch rate for the whole period analysed (1999-200l) was 0.04 birds/1,000 hooks, with a maximum of 0.20 birds/1,000 hooks observed in 1999. Annual captures averaged 1,160 birds; however, the large variation observed indicates that annual by-catch may be in the order of thousands, with around 10,000 seabirds being killed by longliners through the study period. Most of the captures were observed along the Patagonian shelf break. At least 12 bird species were incidentally taken, with Black-browed Albatrosses Thalassarche melanophris and White-chinned Petrels Procellaria aequinoctialis accounting for about 80% of total captures. The information provided in this study allowed the design and future implementation of mitigation measures and new survey methods onboard longliners operating in Atlantic waters on the Argentine shelf.
format JOUR
author Favero, M.
Khatchikian, C.E.
Arias, A.
Rodriguez, M.P.S.
Canete, G.
Mariano-Jelicich, R.
author_facet Favero, M.
Khatchikian, C.E.
Arias, A.
Rodriguez, M.P.S.
Canete, G.
Mariano-Jelicich, R.
author_sort Favero, M.
title Estimate of seabird by-catch along the Patagonian Shelf by Argentine longline fishing vessels, 1999-2001
title_short Estimate of seabird by-catch along the Patagonian Shelf by Argentine longline fishing vessels, 1999-2001
title_full Estimate of seabird by-catch along the Patagonian Shelf by Argentine longline fishing vessels, 1999-2001
title_fullStr Estimate of seabird by-catch along the Patagonian Shelf by Argentine longline fishing vessels, 1999-2001
title_full_unstemmed Estimate of seabird by-catch along the Patagonian Shelf by Argentine longline fishing vessels, 1999-2001
title_sort estimate of seabird by-catch along the patagonian shelf by argentine longline fishing vessels, 1999-2001
url http://hdl.handle.net/20.500.12110/paper_09592709_v13_n4_p273_Favero
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AT caneteg estimateofseabirdbycatchalongthepatagonianshelfbyargentinelonglinefishingvessels19992001
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