Fish sense the world around them in many ways. While most fish possess sight, hearing, taste and smell senses, all of which we can easily relate to, they also have sensory means for detecting stimuli such as water particle displacement and, in some fish, electrical currents. These latter sensory perceptions take advantage of the physical and chemical properties of water, and work in conjunction with the more conventional sight, hearing, taste, and smell sensory modes. Let’s explore them!
Most fish have a lateral line. The lateral line senses tiny pressure changes in the water, sort of like how an eardrum senses tiny pressure changes (sound waves) in air. The lateral line is also pressure-sensitive. In an effort to help you visualize the structures that make up a lateral line, picture it like a river running down the side of a fish. This river is a lateral line canal. The lateral line canal is filled with endolymph — the same fluid that’s in our inner ear.
You are currently not logged in
By logging in you can see the full story.