Elver is a young, snakelike fish that is found in rivers and estuaries. It is an eel-like species of fish that is typically found in the coastal waters of Europe and North America. Elvers are a delicacy in some parts of the world and are often used as bait for fishing. They are also an important part of the food chain, providing sustenance to larger fish and birds. Elvers are highly sought after due to their small size and delicate flavor.