Otter fishing, particularly in the southern and southwestern parts of Bangladesh, continues because it has deep cultural and traditional roots. For generations, fishermen in these regions have relied on otters to help catch fish in the large river systems and wetlands. The otters, often trained by fishermen, are skilled at catching fish and bringing them back to their owners.

The practice is seen as a unique and sustainable way of fishing. While modern fishing techniques have become more widespread, otter fishing persists in certain areas due to its effectiveness, the bond between the fishermen and otters, and the cultural significance. It's also considered more environmentally friendly compared to some industrial methods. However, the practice is becoming less common due to changing fishing habits, loss of habitat, and the difficulties of training otters in modern times.