New Jersey Scuba Diving

Eastern Crayfish

Cambarus bartoni

Size: to 3"

Habitat: small streams, sometimes ponds and lakes

Notes: Active at night, hides in burrows or under objects during the day.

Compare freshwater crayfish with marine lobsters.

Blue coloration is the crayfish equivalent of albinism, and also occurs in lobsters. Individuals like this have little chance of surviving in the wild.

Norway Rat

Rattus norvegicus

Size: 6-8" (body)

Habitat: everywhere

Notes:
Sorry to say, but rats are especially common around watery habitats and are excellent swimmers. They are particularly fond of beaches, marshes, ships, docks, and jetties. The next time you go diving at Shark River, take a careful look in the rocks and you will likely see one or two scampering around, dining on old fishing bait and washed-up detritus, even in broad daylight. The Norway Rat is introduced from the Old World, and in most areas today it is more common than the native Black Rat.

More: Norway Rat ...

Eastern Crayfish

Shellfish

Norway Rat