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Bycatch of the Southern King Crab (Lithodes santolla) in the Patagonian shrimp fishery in the Southwestern Atlantic Ocean. (Record no. 20889)

000 -Encabezamiento
fixed length control field 02925nam a22002777a 4500
005 - Fecha de Ultima Modificación
control field 20201005074704.0
008 - Elementos de longitud Fija--Información General
fixed length control field 180125b20172017ne ||||| |||| 00| 0 eng d
022 ## - ISSN
International Standard Serial Number 0964-5691
041 ## - Código de Idioma
Language code of text/sound track or separate title eng
100 ## - Entrada Principal - Nombre Personal
Personal name Varisco, Martín
245 ## - Título propiamente dicho
Title Bycatch of the Southern King Crab (Lithodes santolla) in the Patagonian shrimp fishery in the Southwestern Atlantic Ocean.
Remainder of title Can it contribute to the depletion of its population?
300 ## - Descripción Física
Extent pp. 177-184
520 ## - Resumen, etc.
Summary, etc. The Southern King Crab (SKC), Lithodes santolla, has supported a growing fishery in San Jorge Gulf<br/>(Patagonia, Argentina) since 2011. This fishery is developed by vessels called crabbers. SKC is also caught<br/>as bycatch in the Patagonian shrimp fishery, a major crustacean fishery in the Southwestern Atlantic<br/>Ocean. In this work, we characterized SKC bycatch in shrimp fishery and compared 1994e1996 data<br/>(which reflected little fishing impact) and 2011e2012 data (at the beginning of the current SKC fishery by<br/>crabbers in San Jorge Gulf), to determine the particular effects of bycatch on the SKC population. The<br/>frequency of occurrence of SKC in shrimp hauls was 84.08%. However, the relative abundance was low, in<br/>most of the hauls SCK represented less than 5% of the capture. Between 2006 and 2011, the estimated SKC<br/>bycatch was 2432 tn/year. Frequency of occurrence and abundance were higher in the same area where<br/>crabbers operate. SKC bycatch is commonly discarded, but, in 18% of the hauls, SKC are processed on<br/>board, although this is illegal. Mortality estimated at the beginning of handling was 19%, but this value<br/>may be greater due to the long time of onboard handling. SKC bycatch include critic stages of its life cycle<br/>such as juveniles, ovigerous females and molting individuals. Juveniles represented 26.9% of the total SKC<br/>bycatch, while ovigerous females represented 28.1%. Sex ratios and male size showed no differences<br/>between 1994e1996 and 2011e2012, whereas the proportion of ovigerous females decreased between<br/>both periods. This decrease can be related to the interference of trawlings in their reproductive migration<br/>to coastal waters or in their mating grounds. We consider that the main problem of SKC bycatch is the<br/>detrimental effects on its reproductive potential due to the increase in the proportion of non-ovigerous<br/>females and the mortality of ovigerous females along with extensive handling, which can also result in a<br/>significant egg loss.
650 ## - Entradas Secundarias - Términos temáticos
Tópico o nombre geográfico Océano Atlántico
9 (RLIN) 3748
650 ## - Entradas Secundarias - Términos temáticos
Tópico o nombre geográfico Cangrejo Real del Sur
9 (RLIN) 3098
650 ## - Entradas Secundarias - Términos temáticos
Tópico o nombre geográfico Lithodes santolla
9 (RLIN) 3099
650 ## - Entradas Secundarias - Términos temáticos
Tópico o nombre geográfico Camarón
9 (RLIN) 1314
700 ## - Entradas Secundarias - Nombre Personal
Nombre Personal Cochia, Pablo
700 ## - Entradas Secundarias - Nombre Personal
Nombre Personal Gongora, María Eva
700 ## - Entradas Secundarias - Nombre Personal
Nombre Personal Bovcon, Nelson
700 ## - Entradas Secundarias - Nombre Personal
Nombre Personal Balzi, Pamela
700 ## - Entradas Secundarias - Nombre Personal
Nombre Personal Vinuesa, Julio
773 ## - HOST ITEM ENTRY
Related parts Vol. 136 pp. 177-184
Title Ocean & Coastal Management
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme
Koha item type Revista
945 ## - LOCAL PROCESSING INFORMATION (OCLC)
a AMD
d 2018-01-25
Holdings
No préstamo Colección Koha Ubicación actual Fecha de Adquisición Número de ejemplar Tipo de í­tem (Koha)
    Biblioteca Central 01/25/2018 Vol. 136 (2017) Revista

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