Araştırma, 2020 yılı Haziran-Temmuz aylarında Düzce ili Akçakoca ilçesinde balıkçı barınağı ve Su Ürünleri Kooperatifinde gerçekleştirilmiş olup, deniz balıklarının aylık fiyat değişimleri tespit edilerek, türler yıllar arasındaki ilişkilerinin belirlenmesi amaçlanmıştır. Akçakoca’da en çok satışı yapılan hamsi (Engraulis encrasicolus ponticus), istavrit (Trachurus trachurus), mezgit (Merlangus...

In this study 288 length-weight relationships of some fish species from the Turkish coasts Black Sea were gathered 138 studies, which conducted by several researchers between 1989 and 2021. For all species, “b” values ranged 2.49 for Trachurus trachurus to 3.75 Alosa caspia. The expected range 2.5<b<3.5 is confirmed fish. It thought that high b value (3.75) given A. caspia may be ...

Abstract The timing of entry into freshwater by mature anadromous fishes is an important component their migration phenology. In iteroparous species, identifying the cues that influence freshwater, and annual variability in these timings, assessing extent individual repeatability. Here, passive acoustic telemetry tracked 71 twaite shad Alosa fallax (‘shad’) returning to River Severn’s upper est...

Research objective was to identify the specific features of distribution microelements (zink, manganese, lead, cadmium) in organs and tissues black-backed shad Alosa kessleri (Grimm, 1887) Dolginsky herring braschnikowii (Borodin, 1904) caught Caspian Sea. Accumulated fish concentrations exceeding maximum permissible limits, heavy metals pose a danger human health. Sampling carried out by stand...