silversides

Silversides are a group of small, silvery fish belonging to the family Atherinidae, which is part of the order Atheriniformes. They are found in both freshwater and marine environments, with some species being euryhaline and able to tolerate a wide range of salinities. Silversides are known for their elongated, slender bodies and distinctive silver or metallic coloration, which helps them blend into their surroundings and avoid predators.

The most well-known genus within the family Atherinidae is Odontesthes, which includes species commonly referred to as silversides. These fish are typically small, with most species reaching lengths of less than 10 centimeters. They have a continuous lateral line that runs along their entire body, and their scales are small and overlapping, giving them a smooth, sleek appearance.

Silversides are omnivorous, feeding on a variety of small invertebrates, plant material, and detritus. They are often found in schools and are an important food source for larger fish and birds. Some species of silversides are also popular in aquarium keeping due to their attractive appearance and relatively easy care requirements.

The family Atherinidae is found in various regions around the world, including North and South America, Africa, Asia, and Australia. They are particularly diverse in the Neotropical region, where numerous species have evolved to occupy a wide range of habitats, from fast-flowing rivers to brackish estuaries and coastal waters. Despite their small size, silversides play a significant role in their respective ecosystems, contributing to nutrient cycling and serving as a food source for many other organisms.