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Öğe Reproductive biology of the endemic and threatened Menderes Nase, Chondrostoma meandrense Elvira, 1987, in Western Anatolia (Osteichthyes: Cyprinidae)(Taylor & Francis Ltd, 2009) Ozcan, GuelnazMaturity age, spawning time and fecundity of the Menderes Nase, Chondrostoma meandrense Elvira, 1987 were determined at Kemer Reservoir, an artificial waterbody in Western Anatolia, between January and December 2006. Males and females become mature on average at 10.6 and 11.9 cm FL and at age class 1. Spawning occurs between March and May. The number of eggs ranges from 6,800 to 13,800 and the average egg diameter is 1.14 +/- 0.53 mm (range: 0.75-1.79 mm). The female gonadosomatic index peaked in March.Öğe Some biological parameters of the bergamae barb, Capoeta bergamae Karaman, 1969 (Cyprinidae), in Kemer reservoir (Aydin, Turkey)(Univ Oradea Publ House, 2009) Ozcan, Guelnaz; Balik, SueleymanThe age, growth and maturity of Capoeta bergamae Karaman, 1969, an endemic and vulnerable fish species from western Anatolia, were studied by monthly samplings throughout January - December 2006. Females represented 44.8% and males 55.2% of the individuals. Age determinations based on scale readings show that the population has four age classes. The von-Bertalanffy growth parameters were L infinity:25.0 cm, K=0.344 year(-1) and t(0)=-0.93 year for males respectively L infinity:27.2 cm, K=0.308 year(-1) and to=-0.92 for females. Length-weight relationships were estimated as W=0.020*L-2.85 (R-2=0.94) for males and W=0.021*L-2.84 (R-2=0.97) for females. The growth characteristics of both sexes were allometric (b=2.85 males; b=2.84 females). According to gonadosomatic index values, the reproduction period began in May and continued til July. Males reached maturity at smaller lengths (FL: 14.0 cm [SD: 0.34], 1.9 years) than females (FL: 15.4 cm [SD: 0.39], 2.2 years).Öğe Threatened fishes of the world: Capoeta bergamae Karaman, 1969 (Cyprinidae)(Springer, 2009) Ozcan, Guelnaz; Turan, Cemal[Abstract Not Available]
