In some locations, fishermen are getting help from self-trained Bottlenose Dolphins
Pink dolphins eat small fishes and crabs from the bottom of the river.
Bottlenose dolphins eat fish and squid like most of the popular dolphins eat.
There are 15 species of herring but the most common is the Atlantic Herring.
Spinner dolphins eat several kinds of fish, jellyfish, squid, krill and some kinds of snails without shell