Although the genus Cancer formerly included most crabs, it has since been restricted to eight species.
Live food often includes crabs and small fish.
The river's abundant supply of food included fish, shellfish, crab, and shrimp.
That did not include small crabs, he said, and, given the nature of the survey, the true number could be from 6 million to 17 million.
This includes fish, crabs, small birds, rodents, insects and even other monitors.
Common oyster predators include crabs, sea birds, starfish, and humans.
Favoured fish dishes include sea bass, black bream and crab.
Some of these include sea urchins, crabs and octopuses.
Major agricultural products of the town include fish, prawn, crab, rice, sugar, cattle and poultry.
Island fishing includes crab, gray trout, striped bass and flounder.