sentences:  In addition, the outbreak of water hyacinth blue and its decay stage will consume a large amount of dissolved oxygen in the water body at the same time, and the space for reproduction of underwater animals such as fish will be reduced, and even a large number of fish will die.It is similar to changing the original food chain in the water body, thereby reducing the stability of the ecosystem in this water area.The massive explosive growth of water hyacinth blue often covers the water body where it is located, blocking river channels and waterways, and impeding water transportation.