Fish have a wide range of vision compared to humans, and their ability to perceive light extends into the ultraviolet (UV) range. While the specific range of wavelengths that fish can see varies among species, most fish can see wavelengths ranging from ultraviolet to blue and green light.
Here is a general overview of the wavelengths that fish can perceive:
Ultraviolet (UV) light: Many fish species can see ultraviolet light, which has wavelengths shorter than the visible spectrum. UV light typically ranges from around 10 nm to 400 nm.
Blue light: Fish have good sensitivity to blue light, and it plays a significant role in their visual perception. Blue light wavelengths range from approximately 400 nm to 500 nm.
Green light: Green light is also visible to most fish species, although their sensitivity to this color may vary. Green light wavelengths range from approximately 500 nm to 565 nm.
Red and longer wavelengths: Fish generally have reduced sensitivity to red light and longer wavelengths compared to humans. Their vision in this range is limited, and they may perceive longer wavelengths as shades of gray or black.
It's important to note that the exact range of wavelengths visible to fish can vary depending on the species and their natural habitat. Some species may have specialized visual adaptations that allow them to see in specific light conditions, such as deep-sea fish that are adapted to low-light environments.