Reproductive parameters of the commercially exploited deep-water shark, Deania calcea (Centrophoridae)

Rafaela Barros Paiva, Ana Neves, Vera Sequeira & Leonel Serrano Gordo
Little information is available on the reproductive parameters of the commercially exploited deep shark Deania calcea (Lowe, 1839). Samples were obtained from deep-water longlines operating at depths around 1450 m in the Portuguese continental slope between September 2008 and July 2009. Both the male and female reproductive tracts were morphologically and histologically analysed. Females were more numerous than males, which may be related to possible sex segregation by depth/geographical area and/or fishermen preference for females...
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