Koepistes

Koepistes is a genus of small, freshwater fish belonging to the family Cyprinidae, which includes minnows and carps. The genus is native to the rivers and streams of Southeast Asia, particularly in the Mekong and Chao Phraya river basins. Koepistes species are known for their small size, typically ranging from 2.5 to 5 centimeters in length, and their distinctive coloration, which often includes shades of brown, green, or gray.

The genus includes several species, with Koepistes brevis being one of the most well-known. This species is characterized by its elongated body and the presence of a small, dorsal fin. Koepistes species are omnivorous, feeding on a variety of small invertebrates and plant material. They are also known for their ability to tolerate a wide range of water conditions, making them adaptable to various freshwater environments.

Koepistes species play a role in the aquatic ecosystems they inhabit, serving as a food source for larger fish and other predators. However, their small size and limited range make them vulnerable to habitat loss and pollution. Conservation efforts are ongoing to protect these species and their habitats, ensuring the continued presence of Koepistes in Southeast Asian freshwater ecosystems.