Determination of entrance seasons of elvers (Anguilla anguilla L., 1766) in Gözlen Creek and assessment of different catching methods
Turkish Journal of Veterinary and Animal Sciences, cilt.29, sa.4, ss.1061-1066, 2005 (SCI-Expanded, Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 29 Sayı: 4
- Basım Tarihi: 2005
- Dergi Adı: Turkish Journal of Veterinary and Animal Sciences
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.1061-1066
- Anahtar Kelimeler: Catching methods, Eel, Elver, Gözlen Creek, Turkey
- Isparta Uygulamalı Bilimler Üniversitesi Adresli: Hayır
Özet
This study was carried out in Gözlen Creek, located on the Fethiye-Muǧla boundary Turkey, between March to July, 1998, and January to July, 1999. Elvers were collected using trap-nets, drift nets, hand scoop nets and electrofishing equipment. Examination indicated that the highest yield was obtained using hand scoop nets (P < 0.05) and electrofishing equipment. Elvers entered Gözlen Creek between February and July. A total of 214 specimens entering the creek were examined and 3 different groups were established according to their morphological characteristics: average weight (W) group I; 0.166 ± 0.007 g, group II; 0.392 ± 0.02 g, group III; 0.800 ± 0.06 g and average total length (L) group I; 56.16 ± 0.06 mm; group II; 64.39 ± 0.11 mm and group III; 82.02 ± 0.18 mm. The length-weight relation of elvers was calculated using regression analysis and was determined as follows: group I; W = 0.0020*L2.5327, group II; W = 0.0015*L2.9516, and group III; W = 0.0023*L 2.7090. The condition factor (C) was determined as 0.209 ± 0.009 for group I; 0.154 ± 0.004 for group II and 0.251 ± 0.009 for group III. © TÜBİTAK.