Rheotaxis is a form of taxis seen in many aquatic organisms, e.g., fish, whereby they will turn to face into an oncoming current. In a flowing stream, this behavior leads them to hold their position rather than being swept downstream by the current.

What is rheotactic movement?

the tendency of certain living things to move in response to the mechanical stimulus of a current of water. See also: Motion. the tendency of some plants to respond to a current of water by growing with it (positive rheotaxis) or against it (negative rheotaxis).

What is the meaning of rheotaxis?

Rheotaxis is a form of taxis resulting in the cell moving in response to a current of water or air. It is exhibited by many aquatic organisms such as fish. A positive rheotaxis in this case would be one in which the fish would turn to face into an oncoming current of water.