Due to global climate change and lowering of water levels in Lake Van and adjacent rivers, the migration of tarek is expected to be more difficult this year. These fish migrate to freshwater during the breeding season.

Lake Van is one of the areas affected by the drought. Low rainfall is affecting the water potential of the basin. The level of Lake Van will have a permanent downward trend. This situation has a negative impact on wildlife.

The hot weather has affected the fish. The fish, which were supposed to be at a depth of 70 metres this season, have come near the shore, swimming at a depth of 18 metres.

The less water, the harder it will be for the fish to reproduce, because although tareks live in the soda-rich waters of Lake Van, they only survive when rivers flow into the lake.