Platorchestia platensis
{{Short description|Species of crustacean}}
{{Speciesbox
| image = FMIB 42836 Orchestia agalis Upper figure male, lower female Woods Hole.jpeg
| image_caption = Male and female
| genus = Platorchestia
| species = platensis
| authority = (Krøyer, 1845)
| synonyms_ref = {{cite journal |author=D. J. Wildish |year=1988 |title=Ecology and natural history of aquatic Talitroidea |journal=Canadian Journal of Zoology |volume=66 |issue=11 |pages=2340–2359 |doi=10.1139/z88-349}}
| synonyms = Orchestia agilis
}}
Platorchestia platensis is a species of sand flea, an amphipod crustacean that lives on beaches.
Ecology
In common with other sand fleas of the family Talitridae, P. platensis lives above the littoral zone in moist sand or rotting seaweed. There appears to be competitive exclusion between P. platensis and the native Orchestia gammarellus on European beaches.
Distribution
The native range of P. platensis is not known in detail, but it is probably circumtropical.{{cite web |url=http://cookislands.bishopmuseum.org/species.asp?id=14670 |title=Platorchestia platensis, a sandhopper |work=Cook Islands Biodiversity Database |publisher=Cook Islands Natural Heritage Trust |year=2007 |accessdate=June 17, 2011}} The species description was based on specimens collected near the commercial port of Montevideo, and the species probably spreads through ship's ballast. It was first discovered in northern Europe in 1860 on a beach near Humlebæk, Denmark. By the 1940s, it was common on both sides of the Kattegat; it reached the Netherlands around 1950, and the United Kingdom in 1978.
Taxonomy
Platorchestia platensis was originally described as Orchestia platensis by Henrik Nikolai Krøyer in 1845, based on type material from the Río de la Plata in Uruguay.{{cite web |url=http://www.nobanis.org/MarineIdkey/Small%20crustaceans/PlatorchestiaPlatensis.htm |title=Platorchestia platensis Krøyer, 1845 – a beachflea |work=Identification key to marine invasive species in Nordic waters |publisher=NOBANIS – European Network on Invasive Alien Species |accessdate=June 17, 2011 |url-status=dead |archiveurl=https://web.archive.org/web/20110724002236/http://www.nobanis.org/MarineIdkey/Small%20crustaceans/PlatorchestiaPlatensis.htm |archivedate=July 24, 2011 }}
References
{{Portal|Crustaceans}}
{{Reflist|32em}}
{{Taxonbar|from=Q3355243}}
Category:Crustaceans of Brazil