Length-Weight Relationships for Fourteen Fish Species Collected by Bottom Trawl From the Eastern Black Sea Coast, Turkey

Abstract

Length-weight relationships (LWR) were described for fourteen demersal and pelagic fish species; whiting (Merlangius merlangus), red mullet (Mullus barbatus), picarel (Spicara maena), scorpion fish (Scorpaena porcus), anchovy (Engraulis encrasicolus), sprat (Sprattus sprattus), horse mackerel (Trachurus mediterraneus), bluefish (Pomatomus saltatrix), turbot (Scophthalmus maximus), thornback ray (Raja clavata), shore rockling (Gaidropsarus mediterraneus) round goby (Neogobius melanostomus), black goby (Gobius niger) and stargazer (Uranoscopus scaber) caught with bottom trawl (12 mm mesh size) from the Eastern Black Sea. Samples were caught in depths from 10 m up to 60 m between April 2017 and March 2018 at monthly intervals. The minimum and maximum lengths and weights, length-weight relationships, parameters of a and b, ± 95% CI of b, r², growth type (isometric or allometric) of samples, and statistical analyses of the relationship were determined. Estimates for parameter b of the length–weight relationship ranged between 2.44 and 3.54.

Keywords

• Demersal fish
• Black Sea
• Pelagic fish
• Fisheries

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