Nature Cycles

Tuesday, July 3, 2012

American Lobster



The American lobster (Homarus americanus), is a specie of lobster located in the Atlantic Coast of North America. In North America it is also called the northern lobster or the Marine lobster. It can have a body length of 64 centimeters (25 inches) and a weight of 20 kilograms (44 pounds). It is the heaviest crustacean in the world!!! American lobsters are bluish-green to brown with red on the spines.
This lobster can reach to a length of 8-24 inches (200-610 millimeters) and can have a weight of 1-9 pounds (0.45-4.1 kilograms), but has been known that it could lengths over 3 feet (0.91 millimeters) and can have a weight of 44 pounds (20 kilograms). It is the heaviest marine crustacean in the world. It is closely related to the European lobster (Homarus gammarus).

The antennae of it measures approximately 2 inches (51 millimeters) long and splits into a Y shape with pointed, sharp points.

The first pair of legs also known as the pereiopods is armed large but not equivalent pairs of claws. The larger one is called the "crusher" named after it's job to crush it's prey. It has rounded nodules. The smaller one is called the "cutter" named after it's job too. It has sharp inner edges that can hol or tear up it's prey.

The normal colour of the American lobster is dark bluish to greenish-brown, mostly redder on the body and claws anf greener on the legs. There are blue lobsters because they have a genetic mutation. If you find a yellow lobster, they are yellow because they have a rare genetic mutation. There are albino lobsters too. They are very rare. There are multicoloured  lobsters too that have an orange and black shell. There are other combinations of colours for lobsters such as brown and orange lobsters.

American lobster like to live in cold and shallow waters with many rock near the area. They use the rocks to hide from predators. It mostly lives in a depths of 4-5 meters ( 13-160 feet), but can live up to 480 meters (1570 feet) below the surface. They are nocturnal. There food chain includes fish, small crustaceans, and mollusks.

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