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Age, growth and reproduction of the common stingray, Dasyatis pastinaca from the North Aegean Sea
Yigin, C.C.; Ismen, A. (2012). Age, growth and reproduction of the common stingray, Dasyatis pastinaca from the North Aegean Sea. Mar. Biol. Res. 8(7): 644-653. http://dx.doi.org/10.1080/17451000.2012.659667
In: Marine Biology Research. Taylor & Francis: Oslo; Basingstoke. ISSN 1745-1000; e-ISSN 1745-1019, meer
Peer reviewed article  

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Trefwoorden
    Groei; Leeftijd; Maturation; Dasyatis pastinaca (Linnaeus, 1758) [WoRMS]; MED, Egeïsch [Marine Regions]; Marien
Author keywords
    Dasyatis pastinaca; age; growth; maturity; North Aegean Sea

Auteurs  Top 
  • Yigin, C.C.
  • Ismen, A.

Abstract
    Age, growth and reproductive parameters of the common stingray, Dasyatis pastinaca, in the North Aegean Sea are reported. Age was estimated by counting the growth rings of thin sections of vertebral centra from 83 fish (83–114 cm total length, TL). The relationship between TL and the vertebral centrum ratio (CR) was curvilinear, therefore a quadratic model was preferred to describe between the vertebral centrum growth and body growth. The oldest common stingray were 16 years (females) and 10 years (males), which corresponded to total lengths of 114 and 83 cm, respectively. Estimates of von Bertalanffy growth parameters suggest that males attain a slightly larger asymptotic total length (L8=188.49 cm) than females (L8=119.96 cm) and grow more slowly (K = 0.065 year-1 and 0.086 year-1, respectively). The size at which 50% (TL50) of males and females were sexually mature at 62.5 cm TL.

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