Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/46504
Título: Can the bathymetric distribution of cephalopods be studied with commercial fishing gears?
Autores/as: Hernández García, Vicente 
Bordes Caballero,Fernando 
Almonacid, Eduardo
Clasificación UNESCO: 531201 Agricultura, silvicultura, pesca
Palabras clave: Cephalopods
Fecha de publicación: 2006
Publicación seriada: Acta Universitatis Carolinae. Geologica 
Resumen: The species composition and bathymetric distribution of cephalopods close to the island of Fuerteventura (Canary Islands, Central-eastern Atlantic) were investigated. The cephalopods were caught in 27 trawls carried out in March 2002, including two trawl series of 4 tows at four discrete depth levels during day and night times, using a commercial fishing gear. Fishing depths ranged between 0-1000 m. A total of 28 cephalopods species belonging to 15 families were identified; the samples swere dominated by Oegopsida, being Sepiida and Octopoda less numerous (2 and 3 species, respectively). Cephalopods were mainly represented by their early life stages, post-larvae and juveniles; captured adults were of species reaching short maximal sizes (i. e. the genus Spirula, Abraliopsis, Abralia, Pterygioteuthis and Pyroteuthis). The families in highest number and frequency of occurrence, were Pyroteuthidae and Enoploteuthidae with a relatively low diversity (3 and 2 species, respectively). Cephalopods concentrated in deeper waters during the day. The two fishing series let us verify the vertical migration of several cephalopod species. Both, the number of species (from 13 to 20) and total number of specimens (from 44 to 91) were larger for the night hauls. The later suggests a considerable potential of the technique used to study cephalopod populations.
URI: http://hdl.handle.net/10553/46504
ISSN: 0001-7132
Fuente: Acta Universitatis Carolinae, Geologica [ISSN 0001-7132], v. 49, p. 129-134
Colección:Actas de congresos
Vista completa

Citas SCOPUSTM   

1
actualizado el 24-mar-2024

Visitas

38
actualizado el 02-sep-2023

Google ScholarTM

Verifica


Comparte



Exporta metadatos



Los elementos en ULPGC accedaCRIS están protegidos por derechos de autor con todos los derechos reservados, a menos que se indique lo contrario.