Length-weight relationships of ten fish species from the Bulgarian Black Sea waters

Authors : Maria YANKOVA, Danail PAVLOV, Violin RAYKOV, Veselina MIHNEVA, Georghe RADU

Pages : 265-270

View : 18 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Length-weight relationships insert ignore into journalissuearticles values(LWRs); of 16,842 specimens of fish caught in the Bulgarian Black Sea waters, covering 9 families, 10 genera, and 10 species, were studied. Spiny dogfish insert ignore into journalissuearticles values(Squalus acanthias L.);, thornback ray insert ignore into journalissuearticles values(Raja clavata L.);, sprat insert ignore into journalissuearticles values(Sprattus sprattus L.);, pontic shad insert ignore into journalissuearticles values(Alosa immaculata Eichwald);, anchovy insert ignore into journalissuearticles values(Engraulis encrasicolus L.);, whiting insert ignore into journalissuearticles values(Merlangius merlangus euxinus Pallas);, horse mackerel insert ignore into journalissuearticles values(Trachurus mediterraneus Aleev);, bonito insert ignore into journalissuearticles values(Sarda sarda Bloch);, round goby insert ignore into journalissuearticles values(Neogobius melanostomus Pallas);, and turbot insert ignore into journalissuearticles values(Psetta maxima L.); were collected from May 2006 to December 2008. The fishes were caught by different fishing techniques, such as gill net, trawl net, and trap nets. The slope or allometric coefficient insert ignore into journalissuearticles values(b); of the functional regression between length and weight values varied from between 2.302 and 3.839 with the mean b = 3.152. The LWRs for S. acanthias and R. clavata have been reported for the first time for the Bulgarian Black Sea waters.
Keywords : Key words Length weight relationships, fish species, Black Sea waters, Bulgaria