Seasonal changes in condition and gonadal maturation of brown trout (Salmo trutta) in a Turkish stream

Arslan M., Yildirim A.

JOURNAL OF FRESHWATER ECOLOGY, cilt.22, sa.3, ss.529-531, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 22 Sayı: 3
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1080/02705060.2007.9664183
  • Dergi Adı: JOURNAL OF FRESHWATER ECOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.529-531
  • Atatürk Üniversitesi Adresli: Evet

Özet

Condition factor (K) and somatic index (SI) in brown trout (Salmo trutta) of the Stream Kan in northeastern Turkey varied seasonally in mature fish, with the highest values from May through September, while juvenile fish demonstrated less pronounced fluctuation in these characters. Gonadosomatic indices (GSI) for mature were highest in September for males and females, with values of 3.1, and 6.5% respectively. There was a significant (p < 0.05) positive correlation between GSI and K in both sexes, whereas Sl correlated significantly (p < 0.05) with GSI only for females. Water temperature was significantly (p < 0.05) correlated with K, SI and GSI.