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Sex identification and biomass reconstruction from the cuttlebone of Sepia officinalis

Published online by Cambridge University Press:  03 March 2009

Eduardo Almonacid-Rioseco ,
Vicente Hernández-García ,
Aldo P. Solari ,
Ángelo Santana Del Pino  and
José J. Castro
Eduardo Almonacid-Rioseco
Affiliation:
Biota Austral Consultores, C/ Francisco Bilbao 940, Casilla de Correo 19, Punta Arenas, Chile
Vicente Hernández-García
Affiliation:
Universidad de Las Palmas de Gran Canaria, Edificio de Ciencias Básicas, Campus de Tafira, 35017 Las Palmas de Gran Canaria, Canary Islands, Spain
Aldo P. Solari
Affiliation:
Universidad de Las Palmas de Gran Canaria, Edificio de Ciencias Básicas, Campus de Tafira, 35017 Las Palmas de Gran Canaria, Canary Islands, Spain
Ángelo Santana Del Pino
Affiliation:
Universidad de Las Palmas de Gran Canaria, Edificio de Ciencias Básicas, Campus de Tafira, 35017 Las Palmas de Gran Canaria, Canary Islands, Spain
José J. Castro*
Affiliation:
Universidad de Las Palmas de Gran Canaria, Edificio de Ciencias Básicas, Campus de Tafira, 35017 Las Palmas de Gran Canaria, Canary Islands, Spain
*
Correspondence should be addressed to: José J. Castro, Universidad de Las Palmas de Gran Canaria, Edificio de Ciencias Básicas, Campus de Tafira, 35017 Las Palmas de Gran Canaria, Canary Islands, Spain email: jcastro@pesca.gi.ulpgc.es
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Abstract

Significant differences were found between males and females in the fragmocone, external cone and widths of the cuttlebone in Sepia officinalis caught in the small-scale trap fishery off Gran Canaria Island (Spain). It is suggested that: (a) differences may depend on morphological adaptations of females for egg laying; (b) cuttlebones represent over 50% of the total cuttlefish caught (which is unrecorded in the fishery); and (c) the relationships between several morphometric measures of the cuttlebone and the mantle length and wet weight may allow more accurate biomass estimations of this species in the fishery.

Keywords

Sepia officinaliscuttlebonesex identificationbiomass reconstruction
Type
Research Article
Information
Marine Biodiversity Records , Volume 2 , January 2009 , e7
Copyright
Copyright © Marine Biological Association of the United Kingdom 2009

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References

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