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

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Girgin H., Başusta N.

ACTA ADRIATICA, cilt.61, sa.1, ss.79-88, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 61 Sayı: 1
  • Basım Tarihi: 2020
  • Doi Numarası: 10.32582/aa.61.1.6
  • Dergi Adı: ACTA ADRIATICA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Environment Index, Geobase, Veterinary Science Database
  • Sayfa Sayıları: ss.79-88
  • Anahtar Kelimeler: European hake, Merluccius merluccius, age, growth, northeastern Mediterranean, condition factor, AGE COMPOSITION, MORTALITY, SEA
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

In this study, the age and some growth characteristics of the European hake, Merluccius merluccius, 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-infinity = 93.98 cm, k= 0.114 year(-1), t(0) = -0.597 year fir females, as L-infinity = 77.65 cm , k= 0.153 year(-1), t(0) = -0.343 year for males and as L-infinity = 84.44 cm, k = 0.135 year(-1), t(0) =-0.469 year for combined sexes. The growth performance value (() 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.