Population Structure, Exploitation Status, and Prospects of Brown Meagre Sciaena umbra Linnaeus, 1758 From the Turkish Coast of the Black Sea
نویسندگان
چکیده
The brown meagre (Sciaena umbra Linnaeus, 1758) population has experienced dramatic declines, and it was regionally assessed as “Near Threatened” in the Mediterranean. In this study, current status of populations Black Sea evaluated by estimating growth mortality rates based on age readings from otolith. All specimens were collected commercial trammel nets between March 2019 February 2020 Turkish coast Sea. A total 324 sampled during study period, ranging 0 to 26. peak spawning season species June July. Von Bertalanffy parameters (L∞ = 54.15, k 0.14 yr-1, t0 -3.11) supports previous studies suggests that is a long-lived slow-growing species. exploitation ratio 0.53 for females 0.47 males. Life-history features mortalities indicate relatively high fertility but may be undefended intense fishing pressure. However, impact overfishing, pollution climate change can have increasingly detrimental effects overall size population.
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ژورنال
عنوان ژورنال: Marine science and technology bulletin
سال: 2023
ISSN: ['2147-9666']
DOI: https://doi.org/10.33714/masteb.1178161