Journal of Biological and Environmental Sciences

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First attempt at conservation of a critically endangered cyprinodontid in Turkey
(Uludağ Üniversitesi, 2014-12-23) Yoğurtçuoğlu, Baran; Ekmekçi, Fitnat Güler
This study has been conducted for conservation of an endemic killifish, Aphanius transgrediens (CR), in Lake Acıgöl since spring 2013. The only distribution area of Aphanius transgrediens is the ground water dependent wetland which consists of about 20 small freshwater springs. Habitat degradation and invasive mosquitofish (Gambusia holbrooki) are the most threatening factors in the area. The main purpose of initial attempts was based on the assessment of the general situation of the fish populations and habitat. The number and location of spring outlets occupied by G. holbrooki and A. transgrediens were determined by fish samplings and census. According to the investigations, only six of the 20 springs were found to host Aphanius transgrediens, and almost all springs were occupied by Gambusia holbrooki. Another two important outcomes of the study were environmental education for local elementary schools and determining some reproductive properties of Aphanius transgrediens under laboratory conditions. As a conclusion of this ongoing study, it was assumed that constructing integrated suitable shelters (e.g. Gambusia-free ponds) which serve as viable stock for Aphanius transgrediens are needed.