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Turkish Journal of Fisheries and Aquatic Sciences 2011, Vol 11, Num, 3     (Pages: 367-375)

Growth and Reproductive Properties of Flathead Trout (Salmo platycephalus Bhenke, 1968) Population from Zamantı Stream, Seyhan River, Turkey

Cemil Kara 1 ,Ahmet Alp 2 ,M. Fatih Can 3

1 University of Kahramanmaraş Sütçü Imam, Faculty of Science and Art, Department of Biology, 46100 K.maraş, Turkey
2 University of Kahramanmaraş Sütçü İmam, Department of Fisheries, Faculty of Agriculture, 46100 K.maraş, Turkey
3 Mustafa Kemal University, Faculty of Fisheries, 31040 Iskenderun, Hatay, Turkey
DOI : 10.4194/1303-2712-v11_3_05 Viewed : 3167 - Downloaded : 3246 In this study the growth and reproductive features of the flathead trout (Salmo platycephalus) found in the IUCN red list of threatened species in Zamantı Stream of Seyhan River were investigated. The population was composed of 50.44 % female, 40.71% male and 8.85% immature individuals. The fork lengths (cm) and total weights (g) of the individuals varied between 11.3 to 40.1 cm and 19.7 to 988.7 g, respectively. Ten age groups (1 to 10) were identified in the population and majority of the sample was between 26.0 to 38.0 cm (69.91%) and 36.28% was between 410 and 660 g in weight. The length-weight relationship for all sample was W = 0.016*FL2.938 with R2 = 0.989. The growth parameters was estimated as; L∞=60.78 cm, K=0.091 and to= -1.72. The condition factors varied from 1.04 to 1.93 and the differences in condition between female and male was not significant (P>0.05). According to GSI and agg dimaters, spawning period was determined between October and December. Mean fecundity was 2,398 egg/fish, egg diameters was between 4.387 and 5.408 mm (mean diametrers was 4.782 mm) on mature individuals in reproductive periods. Keywords :