Relationships between Body Size, Weight and Fecundity of the Endangered Fish Alburnus carinatus Battalgil, 1941 in the Manyas Lake (Turkey)

Authors : Gülşah SAÇ, Özcan GAYGUSUZ

Pages : 27-30

Doi:10.26650/ASE2019600582

View : 21 | Download : 11

Publication Date : 2019-10-30

Article Type : Research Paper

Abstract :Alburnus carinatus Battalgil, 1941 is an endangered fish species, which has a narrow distribution range in two shallow lake basins in northwest Anatolia. The present study aimed to describe the reproductive potential of this endemic fish with the relationships between body size, weight, and fecundity. A total of 101 female A. carinatus were captured from the Manyas Lake between January and June 2019. The standard length and body weight of these samples varied between 8.1– 15.0 cm and 9.38–65.45 g, respectively. The length-weight relationship of the female A. carinatus was calculated as W = 0.020 × SL2.959 insert ignore into journalissuearticles values(r2 = 0.866); with isometric growth. Absolute fecundity ranged from 1512 eggs insert ignore into journalissuearticles values(8.1 cm SL); to 3203 eggs insert ignore into journalissuearticles values(10.3 cm SL); with a mean of 2281 eggs insert ignore into journalissuearticles values(SD = 415.2);. Fecundity–length relationship was F = 5.86 × SL2.67 insert ignore into journalissuearticles values(r2 = 0.702); and the fecundity–length relationship was F = 476.6 + 116.5 × L insert ignore into journalissuearticles values(r2 = 0.688);. Mean relative fecundity was calculated as 244 eggs.cm−1 insert ignore into journalissuearticles values(SD = 34.1); insert ignore into journalissuearticles values(ranged from 179.8 to 310.9 eggs.cm−1); and 148 eggs.g−1 insert ignore into journalissuearticles values(SD = 14.9); insert ignore into journalissuearticles values(ranged from 115.1 to 171.8 eggs.g−1);. 
Keywords : Endemism, shallow lake, length weight relationship, spawning potential, Anatolia