Naslov
Life history traits of the Blackspotted smooth- hound Mustelus punctulatus (Carcharhiniformes: Triakidae) in the Adriatic Sea

Autori
Gračan, Romana ; Polak, Tanja ; Lazar, Bojan

Izvornik
Natura Croatica : periodicum Musei historiae naturalis Croatici (1330-0520) 30 (2021), 2; 475-492

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
age ; growth models ; reproduction ; elasmobranchs ; conservation ; Mediterranean

Sažetak
We present demographic and reproductive parameters of commercially exploited shark, blackspotted smooth- hound (Mustelus punctulatus), based on samples from 117 males and 108 females from the Adriatic Sea. Calculated size and age at maturity were 83.1 cm in total length (TL) and 6.6 years for males and 100.0 cm TL and 12.5 years for females. The oldest observed male and female were 14 and 19 years old, respectively. The Gompertz growth model provided the best fit and predicted a theoretical maximum size (L∞) of 129.3 cm TL and a growth coefficient (k) of 0.15 year–1 for males, and L∞ = 141.1 cm TL and k = 0.13 year–1 for females. Obtained life history traits classify smooth-hound as slow-growing species, extremely sensitive to fishing, and highlight the need for the development of management strategy for this vulnerable species.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

Napomena
University of Primorska, Slovenia

POVEZANOST RADA