Age, Growth and Reproduction of Neogobius melanostomus (Pallas 1814) (Perciformes: Gobiidae) in the Southern Black Sea

Round goby (Neogobius melanostomus, Pallas 1814) which belongs to Gobiidae, inhabits in the Black Sea, Marmara Caspian Sea and rivers that flows into fore stated seas. The main population parameters, such as age, length, sexual composition, length-weight relationship, growth, condition factor, gonadosomatic index reproduction of N. melanostomus were investigated from coasts southern this study. A total 2408 individuals sampled between July 2017 June 2018. Results showed average length weight found 14.97 cm (10.50-26.20) 43.90 g (15.28-212.2), respectively. Sex ratio female male was 1:1.77 (P>0.05). Age samples varied one eight years old. von Bertalanffy growth parameters calculated L? = 26.5 cm, k 0.1980 year-1 t0 -1.3487 year for all individuals. relationship W 0.0069 TL3.1972 Total mortality, natural fishing performance factor 0.625, 0.479, 0.145, 2.143, 1.66, Spawning occurs March May maximum value reached April. Average relative fecundity 318.88 number/g (124.8-958.9), while diameter eggs 2025.58 µm ± 262.86 (1112.0-2703.4). This study will contribute information gap on species well provide source future studies.