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Growth characteristics of the European hake, Merluccius merluccius (Linnaeus, 1758), inhabiting northeastern Mediterranean

Hulya Girgin ; Faculty of Veterinary, Dokuz Eylül University, 35890, Kiraz, Izmir, Turkey2*Faculty of Fisheries, Firat University, 23119, Elazig, Turkey
Nuri Başusta ; Faculty of Fisheries, Firat University, 23119, Elazig, Turkey

Puni tekst: engleski pdf 718 Kb

str. 79-87

preuzimanja: 318



In this study, the age and some growth characteristics of the European hake, Merluccius mer-luccius, from the northeastern Mediterranean were examined during 2015-2016 fishing season. A total of 661 European hake ranging from 9.8 to 51.6 cm in total length was captured by commercial trawler. Female/male ratio was 1/1.15. Age determination was conducted using the sagittal otoliths. Ages of examined individuals ranged from 1 to 7 years. The von Bertalanffy growth parameters fitted to the average measured total lengths-at-age for each sex separately and estimated as L∞= 93.98 cm, k= 0.114 year-1, t0= -0.597 year for females, as L∞= 77.65 cm , k= 0.153 year-1, t0= -0.343 year for males and as L∞= 84.44 cm, k= 0.135 year-1, t0= -0.469 year for combined sexes. The growth performance value (Φ) of the European hake population was computed as 2.98 for combined sexes. Mean condition factor value for population was 0.654±0.021; the highest condition factor was found as 1.01 in fish at age 7.

Ključne riječi

European hake, Merluccius merluccius, age, growth, northeastern Mediterranean, condition factor

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Podaci na drugim jezicima: hrvatski

Posjeta: 735 *