Naslov
Age, growth and mortality of the Mediterranean amberjack Seriola dumerili (Risso, 18109 from the south-eastern Adriatic

Autori
Kožul, Valter ; Skaramuca, Boško ; Kraljević, Miro ; Dulčić, Jakov ; Glamuzina, Branko

Izvornik
Journal of Applied Ichthyology (0175-8659) 17 (2001); 134-141

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

Ključne riječi
age; growth; mortality; Seriola dumerili; south-eastern Adriatic Sea

Sažetak
The age, growth and mortality of the Mediterranean amberjack Seriola dumerili (Risso, 1810) were determined in 298 specimens collected in the south-eastern Adriatic Sea (Donji Molunat Bay) from 17 May to 26 June 1997. The total length ranged from 32.0 to 160.0 cm and weight from 0.5 to 46.5 kg. Ten age classes, ranging from 1 to 10 years were defined by scale readings. Mean total length and weight-at-age data were used to estimate the growth pasrameters of the von Bertalanffy equation: L=174.6 cm, K=0.190, t=-0.314 ; W= 79.01 kg, K=0.139 and t=-0.746. The length-weight relationship was estimated at: W=0.000123xLn2.847. The overall sex ratio was 1:1.06 in favour of males. Total (Z) and natural (M) mortality were found to be 0.41years-1 and 0.30years-1, respectively. The exploitation ratio (E=0.27) indicates that the fishing pressure on the Mediterranean ambverjack was low in th einvestigated region.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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