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Age determination and growth of turbot and brill in the Adriatic Sea: reversal of the seasonal pattern of otolith zone formation
Arneri, E.; Colella, S.; Giannetti, G. (2001). Age determination and growth of turbot and brill in the Adriatic Sea: reversal of the seasonal pattern of otolith zone formation. J. Appl. Ichthyol. 17(6): 256-261. hdl.handle.net/0.1046/j.1439-0426.2001.00293.x
In: Journal of Applied Ichthyology = Zeitschrift für angewandte Ichthyologie. Blackwell: Berlin. ISSN 0175-8659, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Arneri, E.
  • Colella, S.
  • Giannetti, G.

Abstract
    The growth of two commercially important flatfish, turbot (Psetta maxima) (L.) and brill (Scophthalmus rhombus) (L.), was investigated in the Adriatic using whole otoliths (sagittae) and stained otolith sections. At variance with the pattern usually observed in temperate seas, the opaque zone was found to be laid down in autumn and winter, and the translucent zone in spring and summer. Growth rates differed according to sex, with the females attaining greater body lengths. The von Bertalanffy growth parameters were: L8=66.2 cm, K=0.31 years–1, and t0=–0.14 years for turbot males, L8=81.5 cm, K=0.21 years–1, and t0=–0.48 years for turbot females; L8=40.2 cm, K=0.49 years–1, and t0=–1.03 years for brill males; L8=50.1 cm, K=0.27 years–1, and t0=–1.75 years for brill females. Growth rates and maximum age recorded for turbot were comparable to those reported in the North Sea.

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