The red rock crab (aka red crab, rock crab) is similar to — but smaller than — the Dungeness. This species usually measures less than 6 inches across the back and is characterized by large claws. Despite being less meaty than the Dungeness, red rock crab meat is also very tasty. It can be distinguished from the Dungeness by the presence of black on the tips of its claws and by its red coloration. The red rock crab also prefers rocky substrates, as the name implies.
The red crab has been described as the “other big crab.” The red crab is one of several related species of crustaceans that live in various deep stretches of the Atlantic. Red crabs flank the edge of the continental shelf from Nova Scotia south to the Gulf of Mexico. Blue crabs are called swimming crabs because they can use their paddle-like rear legs to propel themselves through the water. Red crabs have no choice but to walk along the sea floor. Most live at greater depths than do the king crabs.
At the depths where red crabs live, there is little or no light to navigate, and water temperatures hover around 38 degrees. The red crabs scuttle across the ocean floor at depths from 600 feet to a mile deep. Often the red crabs must rely on food that sinks down from the surface. The carcasses of dead whales sometimes provide a kind of nutrition bonanza that the crabs can sniff out from long distances away.
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