Length-weight relationship of Black Sea trout (Salmo labrax, Pallas 1811) inhabiting Ilgaz Stream Basin, Turkey

Abstract

In the present study, the length-weight relationship of black sea trout (Salmo labrax) captured from the tributaries of the Ilgaz Stream was investigated. A total number of 36 individuals were captured during 2014-2015 and transported to the laboratory. Here, the length and weight values of the fish were measured and the age determination was performed. Afterward, the condition factor and length-weight relationship parameters were calculated. The age of the fish ranged between 1+ and 4+. The mean condition factor was found to be 1.30 ± 0.13 for all fishes. The total length of the fish ranged between 12.80 and 23.90 cm whereas the weight ranged between 20.52 and 203.46 g. The “b” value was calculated as 3.4 and the growth of the fish was determined to be isometric. It was inferred that the Ilgaz stream is rich in food and the black sea trout inhabiting the stream is well-nourished. The stream is a convenient source in terms of nutrition and future studies should explore other aspects of aquaculture to benefit from the source to grow fish.