Bayburt Üniversitesi Fen Bilimleri Dergisi

Yazarlar: Erdogan ÇİÇEK, Okan KAPTAŞ, Burak SEÇER, Sevil SUNGUR

Konular:Temel Bilimler

Anahtar Kelimeler:Age and growth,EşStream,Environmental plasticity,Exploitatin rate

Özet: This aims to determine age, growth and mortality parameters of Squalius fellowesii sampled from Eşen River. Totally 404 specimens were caught in May to September 2014 were analyzed. Age of sampled specimens varied from age groups of 0 to V. Total length ranged from 3.6 to 20.2 cm 9.48±2.79 cm and total weight varied from 0.43 to 108.65 g and the mean of these variables are 9.48±2.79 cm and 13.54±13.44 g, respectively. The relationship between length and weight (LWR) was determined as W=0.0066*L3.2584 and growth parameters were estimated as L∞: 35.97 cm, to: -0.004 year -1, k: 0.134 year, K: 1.12 and Φꞌ: 2.24. Total, natural and fishing mortalities were calculated as Z: 0.457, M: 0.324, F: 0.133, respectively and the exploitation rates were estimated as E: 0.29.

---