Flashcards on Crustaceans and Mollusks

Front

What are crustaceans?

Back

Crustaceans are edible decapods that possess five pairs of legs, ending in either a claw or a pincer.

Front

Where do crustaceans typically live in the sea?

Back

Crustaceans live on rocky and sandy bottoms, usually near the coast.

Front

Name some examples of crustaceans found in the sea.

Back

Homards (lobsters), Langoustes (lobsters), Langoustines, Araignées (spider crabs), Tourteaux (edible crabs), Etrilles (green crabs), Crevettes (shrimp).

Front

Where do freshwater crustaceans live?

Back

In torrents, streams, and rivers.

Front

What is a unique habitat for some crabs?

Back

Some crabs, like the Crabe barbette, live in holes on tropical coasts.

Front

What is the origin of shrimps in France?

Back

Shrimps are found in the Atlantic, the English Channel, and the Mediterranean.

Front

How do crustaceans reproduce?

Back

Crustaceans reproduce by laying eggs and are considered ovigerous.

Front

How many eggs can a female lobster lay?

Back

A female lobster can lay between 15,000 to 20,000 eggs.

Front

What is the survival rate of lobster eggs?

Back

About 7 out of 10 lobster eggs survive.

Front

How many eggs does a crayfish lay?

Back

A crayfish lays between 500 to 700 eggs.