Young Louisiana Crawfish

Louisiana Crawfish

Procambarus clarkii is a freshwater crayfish species, native to the Southeastern United States, but found also on other continents, where it is often an invasive pest. It is known variously as the red swamp crawfish, red swamp crayfish, Louisiana Crawfish, Louisiana crayfish or mudbug.

The native range of Louisiana Crawfish is along the Gulf Coast from northern Mexico to the Florida panhandle, as well as inland, to southern Illinois and Ohio. It has also been introduced, sometimes deliberately, outside its natural range to countries in Asia, Africa, Europe and elsewhere in the Americas. In northern Europe, the populations of Louisiana Crawfish are self maintaining but not expanding, while in southern Europe Louisiana Crawfish is multiplying and actively colonising new territory, at the expense of the native crayfish, Astacus astacus and Austropotamobius spp.. Individuals are reported to be able to cross many miles of relatively dry ground, especially in wet seasons, although the aquarium trade and anglers may have hastened the spread in some areas. Attempts have also been made to use Louisiana Crawfish as a biological control organism, to reduce levels of the snails.

Source: en.wikipedia.org/wiki/Procambarus_clarkii - 29.09.2010

Louisiana Crawfish

This Louisiana Crawfish is just 20 mm long and yet looks quite self-confident.

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