An Investigation on Some Population Parameters of Tigris Trout (Salmo tigridis Turan, Kottelat & Bektaş, 2011) for Çatak Stream, Upper Tigris Basin/ Turkey
نویسندگان
چکیده
The present study examined length-weight relationship and some growth parameters of Tigris Trout (Salmo tigridis Turan, Kottelat & Bektaş, 2011) caught in Çatak Stream. By using electroshock casting nets, 162 trout were between January 2008 2009. fork lengths total weights measured, sexes the fish identified. Furthermore, their age was also identified line with otoliths. range found out as II–VII age. mean length to be 19.69 ± 3.80 cm for males 19.89 4.63 females. While weight 97.19 5.98 g 102.18 6.10 "W = 0.187 " L^"2.834" . Length according von Bertalanffy equations, they estimated "L" _"t" "=36.467 ("1" -"e" ^(-"0.188" ("t+1.180" ) ),"Wt 495.428 )^"2.834" respectively. Growth type negative allometric females individuals. In samples examined, it revealed that population mainly composed II III elderly male/female ratio 1:2 among samples.
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ژورنال
عنوان ژورنال: Journal of limnology and freshwater fisheries research
سال: 2022
ISSN: ['2149-4428', '2148-9300']
DOI: https://doi.org/10.17216/limnofish.1018239