First data on big-scale sand smelt Atherina boyeri Risso, 1810 (Pisces: Atherinidae) from Kılıçkaya Dam Lake, Turkey

Semra  Benzer

doi:10.17017/j.fish.620

Semra Benzer Gazi Faculty of Education, Gazi University, Teknikokullar, Ankara 06500, Turkey

DOI: https://doi.org/10.17017/j.fish.620

Keywords: big-scale sand smelt, first data, invasive species, Kılıçkaya Dam Lake, Türkiye

Abstract

This research presents primary evidence regarding the occurrence of Atherina boyeri in Kılıçkaya Dam lake. A total of 345 specimens were obtained from local fishermen during May to June 2023. The sampled fish displayed a length range between 50.30 and 94.24 mm and weight between 0.76 and 4.30 g. The study established the length-weight relationship (LWR) based on total length (TL) as W = 0.00002285 L^2.7018 for females, W = 0.00003297 L^2.6033 for males and W = 0.00002501 L^2.6746 for the pooled individuals. The exponential value b of TL-W ratio was determined as 2.6746, indicating negative allometric growth in the species. The average condition factor (CF) was computed as 0.641 ± 0.067. This investigation not only provides initial and valuable insights into the presence of A. boyeri in Kılıçkaya Dam lake but also enhances the understanding of the diversity of aquatic ecosystem. The findings of this study offer practical guidance to local fishery management authorities and decision-makers aiding in the implementation of suitable fishery management strategies to ensure the sustainability of fishery resources.

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