1. The water color becomes green: due to the mass reproduction of the Copper Green Ligurian Turtle, the quality of the water will be changed, and there is a green or dark green color.
2. Turbidity of the water body: the proliferation of the Copperhead turtle will cause turbidity of the water body, reducing the transparency of the water.
3. Deterioration of water quality: the proliferation of Pelodiscus sinensis will make the water body rich in organic matter, resulting in poor nutritional status of the water and deterioration of water quality.
4. Fish deaths: the turtle can inhibit the reproduction of other plankton, reducing the oxygen content of the water, resulting in fish deaths.
5. Death of aquatic plants: the proliferation of the turtle will occupy the surface of the water, blocking the sunlight, so that aquatic plants can not photosynthesize, resulting in the death of aquatic plants.
To sum up, the harm of Copper Green Turtle is mainly manifested in the green color of the water, water turbidity, water quality deterioration, fish death and aquatic plant death and so on.