Cuttlebone morphometrics and sex identification of Sepia bertheloti (d’Orbigny, 1835) from the central-east Atlantic

Abstract Analysis of 322 cuttlebones of Sepia bertheloti caught in the waters of the Northwest Africa showed significant differences in growth between males and females. Morphometric analysis revealed a relatively different cuttlebone growth pattern between sexes, with males presenting faster growth...

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Published inHelgoland marine research Vol. 73; no. 1; p. 1
Main Authors Guerra-Marrero, Airam, Jiménez-Alvarado, David, Hernández-García, Vicente, Curbelo-Muñoz, Leticia, Castro-Hernández, José Juan
Format Journal Article
LanguageEnglish
Published Heidelberg BioMed Central 23.10.2019
Subjects
Animal behavior
Chelonia mydas
Females
Fisheries management
Gametocytes
Growth patterns
Males
Morphometry
Oocytes
Sepia bertheloti
Sexes
Taxonomy
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Summary:Abstract Analysis of 322 cuttlebones of Sepia bertheloti caught in the waters of the Northwest Africa showed significant differences in growth between males and females. Morphometric analysis revealed a relatively different cuttlebone growth pattern between sexes, with males presenting faster growth in length to reach larger sizes and females displaying greater growth in width. This difference in cuttlebone growth is related to female gonadal development and the subsequent increase of the paleal cavity, providing more support and space to accommodate a higher number of oocytes.
ISSN:1438-387X
1438-3888
DOI:10.1186/s10152-019-0531-0