Preliminary observations of the reproductive biology and diet for the Norwegian skate Dipturus nidarosiensis (Rajidae) from the Central Western Mediterranean Sea

Follesa M.C., Cannas R., Cabiddu S., Cau A., Mulas A., Porcu C., Cau A.

Published date: September 2012
Volume: 36
Number: 3
Pagination: 473–477
Publisher: Société Française d’Ichtyologie

Twenty-three Dipturus nidarosiensis (Collett, 1880) (Elasmobranchii: Rajidae) were collected off the coasts of Sardinia between 550 m and 1688 m of depth in 2005-2011. A first description of some biological aspects as the vertical distribution, the reproduction and the diet of the Norwegian skate from the Central Western Mediterranean is provided. Females attained a greater length than males, they mature at larger sizes and were found mature always at depths of 550-600 m in the same area of the Southern coast of Sardinia. The diet of D. nidarosiensis was based almost entirely on decapod crustaceans and completed by bony fish.

Keywords: Diet - Dipturus nidarosiensis - Mediterranean - Rajidae - Reproduction - Skates
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