Reproductive biology of the Blonde Ray Raja brachyura (Chondrichthyes: Rajidae) in Sardinian seas = Bilogia riproduttiva di Raja brachyura (Chondrichthyes: Rajidae) nei mari sardi

Abstract

The reproductive biology of Raja brachyura (Chondrichthyes: Rajidae) in Sardinian waters was analysed. A total of 839 specimens (431 males and 408 females) were collected at depth of 30-175 m in 2005-2009. Females ranged from 131 to 1055 mm in Total Length and males from 156 to 965 mm. No significant differences in size distribution among sexes were detected. Mature females and males were found during spring and summer and from winter to summer respectively. Spent specimens were found in all seasons except in autumn for females and spring for males

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