Distribution and length-weight relationships of the Mediterranean banded killifish (Aphanius fasciatus) in Mediterranean brackish water systems of Turkey

553-558Aphanius fasciatus (Valenciennes, 1821), is a cyprinodontid euryhaline fish occur in many brackish water habitats along the Mediterranean coasts. The current study aims to update the range of A. fasciatus (Mediterranean Killifish, South European Toothcarp) along river estuaries and lagoon systems of Mediterranean coast of Turkey, and to determine its length–weight relationship. A total of 15 sites were surveyed from November 2014 to June 2017. Altogether, 69 specimens were sampled and measured from different systems. At each locality, the general observations on the population, length-weight relationships, its situation and threats were presented