Atherina

Atherina

Atherina is a genus of fish in the family Atherinidae, commonly known as silversides due to their distinctive silver stripe along the side of their bodies. The genus is widespread throughout the Atlantic Ocean, Indian Ocean, and Pacific Ocean, and includes both marine and freshwater species.

Description

Species in the Atherina genus are small, typically measuring between 10 and 20 centimeters in length. They are characterized by their elongated bodies, small mouths, and the distinctive silver stripe that runs along the side of their bodies. The dorsal fin is usually divided into two parts, the first consisting of flexible spines and the second of soft rays.

Habitat and Distribution

Atherina species are found in a variety of habitats, including oceanic, brackish, and freshwater environments. They are widespread throughout the world's oceans, with species found in the Atlantic, Indian, and Pacific Oceans. Some species, such as the big-scale sand smelt, are also found in freshwater environments such as rivers and lakes.

Diet and Behavior

Atherina species are primarily plankton feeders, consuming a diet of small crustaceans, insect larvae, and other planktonic organisms. They are schooling fish, often found in large groups, particularly in coastal waters and estuaries.

Reproduction

Reproduction in Atherina species typically involves spawning, with females releasing eggs into the water to be fertilized by males. The eggs are often adhesive, sticking to rocks or vegetation until they hatch.

Conservation Status

While many Atherina species are widespread and not currently considered threatened, some species have more restricted distributions and face threats from habitat loss and overfishing.

See Also

• Atherinidae
• Atherina boyeri
• Atherina presbyter