Growth and Reproduction Properties of Capoeta trutta (Heckel,1843) in Karakaya Dam Lake

In this study, 510 samples of Capoeta trutta living in Karakaya Dam Lake were studied. After determining sex distribution, size (length and weight), growth rates, and growth conditions factors of 210 C. trutta specimens were examined. The number of female and male specimens was 104 and 106, respectively. The age of females and males ranged between 1-7 and 0-7 years, respectively. The age-length, age-weight, and length-weight curves were constructed. According to the von Bertalanffy equation, females and males were: Lt = 89.5[1-e-0.0571(t+2.4138))], Wt = 9627.1[1-e0.0571(t+2.4238))]3.0325 Lt = 76.4[1-e-0.0604(t+2.6514))], Wt = 5207.2[1-e0.0604(t+2.6514))]2.9322, respectively . The calculated length-weight relation (W) was 0.0116 L3.0325 for females and 0.0115 L2.9322 for males. The average growth condition factor was 1.30 ± 0.06 for females and 1.28 ± 0.05 for males. The reproductive characteristics of C. trutta female specimens were investigated. According to gonadosomatic index (IG) results the development of egg diameter was determined for a spawning period in May and June. It was found that maturity age of the specimens was 2 and 3. The maximum diameter of ripe eggs was 1.04 mm and the maximum number of eggs per gram of gonads was 666.

Anahtar Kelimeler:

Capoeta trutta, Karakaya Dam Lake, growth, reproduction properties

Growth and Reproduction Properties of Capoeta trutta (Heckel,1843) in Karakaya Dam Lake

Keywords:

Capoeta trutta, Karakaya Dam Lake, growth, reproduction properties,

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Anonymous. 1991. Karakaya Baraj Gölü Limnoloji Raporu. DSİ.
Anonymous. 1986. Harward presentation graphics program, Software Publishing Carp. USA.
Bertalanffy, L.V. 1938. A quantitative theory of organic growth (Inquiries on growth Laws. II). Human Biol. A Record of Research. Vol. 10: 181-213.
Chugunova, N.I. 1959. Age and growth studies in fish. Published for the national sci. Foundation, Washington. DC. By the Israel Program for Scientific Translations. Jerusalem 1963, 132p,
Erdem, Ü. 1988. Tödürge gölündeki sazan (Cyprinus carpio, L.1758) populasyonunun bazı biyolojik özelliklerinin incelenmesi. Doğa Tr. J. of Zool. 12: 32-47.
Gül, A., Yılmaz, M. and Solak, K. 1996. Fırat nehri tohma suyunda yaşayan Capoeta trutta (Heckel, 1843)’nın büyüme özellikleri. Doğa Tr. J. of Zoology, 20: 177-185
Hanumara, R.C. and Hoeing, N.A. 1981. Empirical comparison of non- linear growth models for fisheries. Fisheries Research, 11: 143- 154.
Lagler, K.F. 1977. Freshwater Fishery Biology, W.M.C. Brown Company, 421 p.
Laevastu, T. 1965. Manual of methods in fisheries biology. FAO Manuals in Fisheries Science, No:1, 51 p.
Le Cren, E.D. 1951. The Length-weight relationship and seasonal cycle in gonad weight and condition in Perch, Perca fluviatilis. J. Animal Ecol. 20: 201-219.
Nikolsky, G.V.1963. The Ecology of Fishes (translated by L. Birkett). Academic press., London, 352 pp.
Özdemir, N. and Kabukçu, A. 1983. Keban baraj gölü’nde (Elazığ) bulunan Capoeta trutta (Heckel, 1843)’nın boy-ağırlık ilişkisi, kondüsyon faktörü ve üreme peryodu üzerine bir araştırma. F.Ü. Vet. Fak. Der. 6, 35: 15-22.
Polat, N. 1987. Age determination of Capoeta trutta (Heckel, 1843) in Keban Dam Lake. Turk J.of Zool. 11:155-160.
Ratkowsky, D.A. 1986. Statistical properties of alternative parameterisations of the von Bertalanffy Growth Curve. Can. J. Fish Aquat. Sci., 43: 742-747.
Simpson, G.G., Roe, A. and Levontin, R. 1960. Quantitative Zoology. Harcourt, Brace and World. Inc., New York Chicago, San Francisco, 440 p.
Ünlü, E. 1991. Dicle nehrinde yaşayan Capoeta trutta (Heckel, 1843)’nın biyolojik özellikleri üzerine çalışmalar. Doğa Tr. J. of Zool. 15: 12-38.
Şen, D. 1998. Kalecik (Karakoçan-Elazığ) göletinin ve su ürünlerinin incelenmesi. Doğa TU. Biyol. Derg. 12: 69-85.