Potamon fluviatile
| Potamon fluviatile | |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Crustacea |
| Class: | Malacostraca |
| Order: | Decapoda |
| Infraorder: | Brachyura |
| Family: | Potamidae |
| Genus: | Potamon |
| Species: | P. fluviatile |
| Binomial name | |
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Potamon fluviatile (Herbst, 1785) |
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| Synonyms | |
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| External identifiers for Potamon fluviatile | |
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| Encyclopedia of Life | 4266950 |
| NCBI | 511340 |
| WoRMS | 442952 |
Potamon fluviatile is a freshwater crab found in or near wooded streams, rivers and lakes in Southern Europe. It is an omnivore with broad ecological tolerances, and adults typically reach 50 mm (2 in) in size during their 10–12 year lifespan. They inhabit burrows and are aggressive, apparently outcompeting native crayfish.
P. fluviatile has been harvested for food since classical antiquity, and is now threatened by overexploitation. Many of the island populations are particularly vulnerable, and the Maltese subspecies has become a conservation icon. A population in Rome may have been brought there before the founding of the Roman Empire.
Adult Potamon fluviatile may reach a carapace length of 50 millimetres (2.0 in), with females being generally smaller than males. As with other crabs, the body is roughly square, with the reduced abdomen tucked beneath the thorax. The thorax bears five pairs of legs, the first of which is armed with large claws.
The life span of P. fluviatile is typically 10–12 years.Moulting does not occur in winter. Mating lasts between 30 min and 21 hours, with spawning usually taking place in August. Females carry the eggs on their pleopods (appendages on the abdomen) until they hatch directly into juvenile crabs, having passed through the larval stages inside the egg.
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Wikipedia