Özet:

Water is the most important compound on Earth because it is the basic component of animals and is needed in all vital activities. Water is an ideal living environment for some animals where they spend a certain part or the whole of their lives. Approximately a billion people in the world today don’t have clean drinking water and about 2.5 billion people have sanitary and sanitary problems in their water resources. It is possible to ensure the sustainable use of water, a renewable source, not only by preserving its quantity, but also byining its quality. In the assessment and monitoring of the quality of the ecosystem, the importance of the use of Biotic Indices has a close history and is increasing on a daily basis. Fish are considered to be important indicators in these indices. In Turkey, the use of biological indicators is still in the initial stage and the indicators where fish are used as a biological element have not yet been implemented.

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