Opisthorchioz

Opisthorchioz 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. Opisthorchioz species are known for their distinctive appearance, characterized by a deep, compressed body, a large mouth, and a single, long dorsal fin that extends almost to the tail. They are typically small, with adults rarely exceeding 10 centimeters in length.

The genus includes several species, each with its own unique characteristics. Opisthorchioz brevirostris, for example, is known for its elongated snout and distinctive coloration, which includes a dark stripe running along its side. Opisthorchioz konchada, on the other hand, is recognized by its large, rounded scales and a more subdued color palette.

Opisthorchioz species play an important role in their ecosystems, serving as a food source for larger fish and other aquatic predators. They are also of interest to aquarists due to their unique appearance and relatively easy care requirements. However, their populations are threatened by habitat destruction and pollution, making conservation efforts crucial for their long-term survival.