Sillerõivu

Sillerõivu is a small, silvery fish found in the brackish and freshwater environments of Estonia. It is a species of ray-finned fish belonging to the family Cyprinidae, commonly known as the carp family. The fish is characterized by its slender body, small scales, and a typically greenish-grey coloration that often appears silver in certain light conditions. Its fins are generally translucent.

These fish are often found in slow-moving or still waters, such as rivers, lakes, and coastal lagoons. They are known to inhabit areas with abundant aquatic vegetation, which provides them with both food and shelter. Sillerõivu are omnivorous, feeding on a diet that includes small invertebrates, algae, and plant matter. Their small size and schooling behavior make them a common prey item for larger fish and aquatic birds.

In Estonia, sillerõivu is not typically a commercially significant species for human consumption, though it may be caught by recreational anglers. Its primary ecological role is as a part of the freshwater food web. The species' presence and population health can be indicative of the overall condition of its aquatic habitat.