Özet:

Crazy Lake has been a significant natural resource for the local people, along with the surrounding village settlements, where commercial fishing activities have been carried out for many years. The fishing management in the lake has failed in this process, whether formally or necessarily, by the cooperatives. The most important indicator of the collapse of fishing in the lake is that the high commercial value of the indigenous sazan (Cyprinus carpio) and alabakh populations (Salmo trutta caspius) are entering the collapse process. The statistics also confirm these results. In response to the collapse of natural stocks in the lake from the early 1990s; in the 2000s, the entrance of swimming pool fish (Carrasius gibelio) and kervitin (Astacus leptodactylus), which was an exotic and spread species in the lake, began to create a potential pressure on the indigenous fish fauna in the lake. In addition to these developments, on the same period in the lake launched and failed oncorn fishing (Oncornhychus mykiss), fishing work with unplanned/rastgele culture fishing, as well as the increase in the operating capacity of the Arpaçay Hydroelectric Power Plant, the negative impact of the coastal-corn, fishing, sensitive areas that form the cultivation and nutrition areas of the indigenous fishing has also negatively affected the fishing of the lake. This study has revealed the reasons for the interaction between local and foreign species in the Lake Crazy. For many years, the absence of a sustainable lake management strategy in the Crazy Lake and the result of misleading hunting, fishing and cultural fishing practices, the lake has been at risk in terms of the future of indigenous species. After this point, extensive research on the lake ecosystem and fish fauna is needed and a new management strategy is implemented with the restoration of the balances against indigenous species and the lake fish fauna.

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