Characteristics of Mussels

Characteristics of Mussels
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Mussels are a shellfish, commonly found in seafood dishes and distinctive for their oblong shell shape. They comprise several groups of clams. Mussels can be found in lakes, ponds, rivers and streams around the world. The name "Mussel" is a common name for clams that share these characteristics. The taxonomic group for mussels is

Shells

Mussel shells are almost always wedge shaped or asymmetrical. The shells are usually much longer than wide. These wide shells come in two halves that close and inside contain the mussel meat. These two halves are hinged to open and close and stay connected in the center with a hinge. The two sides are called "valves" and are closed by a ligament. The shells are dark colored, usually blue or brown on the outside. Inside, a mussel show is lighter colored, silver. The shells often have a pearl glow on the inside. Shells protect mussels from predators and support the soft tissue found inside.

Mobility

Mussels get around with the help of a foot. This large organ pulls the mussel through the sandy or rocky bottom of a lake, pond or stream and anchors the animal when it's not moving. The foot advances and then pulls the shell along behind.

Feeding

Mussels feed by filtering seawater. Microscopic plankton and other tiny sea animals provide mussels with nutrients. These creatures are found free-floating in sea water. The mussel feeds by drawing in water and any waste water is siphoned out.

Reproduction

Mussels are either male or female. Fertilization occurs outside of the mussel. Larvae then float around from three weeks to six months before settling and becoming a young mussel. Mussels are found in temperate zones, and less commonly in tropical locations. Some species live in salt water while others thrive in freshwater. Mussels are found in locations throughout the world except for polar zones, but need a constant supply of clean water.

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