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The '''crab-eating frog''' ('''''Fejervarya cancrivora'''''), is a [[frog]] native to south-eastern [[Asia]] including Taiwan,<ref name="Lue">{{cite web |url=http://amphibia.biota.biodiv.tw/pages/380 |title=''Fejervarya cancrivora'' |last=Lue |first=Kuang-Yang |work=BiotaTaiwanica |accessdate=12 December 2012 }}</ref> China, the [[Philippines]] and more rarely as far west as [[Orissa]] in India.<ref>[http://www.hindustantimes.com/Rare-species-of-frog-snake-in-Orissa/Article1-232864.aspx Rare species of frog, snake in Orissa]</ref> It inhabits [[mangrove swamp]]s and marshes and is the only known [[Lissamphibia|modern amphibian]] which can tolerate brief excursions into [[sea water]].
The '''crab-eating frog''' ('''''Fejervarya cancrivora'''''), is a [[frog]] native to south-eastern [[Asia]] including Taiwan,<ref name="Lue">{{cite web |url=http://amphibia.biota.biodiv.tw/pages/380 |title=''Fejervarya cancrivora'' |last=Lue |first=Kuang-Yang |work=BiotaTaiwanica |accessdate=12 December 2012 }}</ref> China, the [[Philippines]] and more rarely as far west as [[Orissa]] in India.<ref>[http://www.hindustantimes.com/Rare-species-of-frog-snake-in-Orissa/Article1-232864.aspx Rare species of frog, snake in Orissa]</ref> It inhabits [[mangrove swamp]]s and marshes and is the only known [[Lissamphibia|modern amphibian]] which can tolerate brief excursions into [[sea water]].


This frog can tolerate marine environments (immersion in sea water for brief periods or [[brackish]] water for extended periods) by increasing [[urea]] production and retention, and by remaining slightly hyperosmotic within urea and sodium flux.<ref>{{Cite journal |volume=39 |issue=1 |pages=167–177 |last=Schmidt-Nielsen |first=Knut |authorlink=Knut Schmidt-Nielsen |last2=Lee |first2=Ping |title=Kidney function in the crab-eating frog (''Rana cancrivora'') |journal=[[Journal of Experimental Biology]] |year=1962 |url=http://jeb.biologists.org/cgi/reprint/39/1/167.pdf }}</ref><ref>{{cite journal |last=Dicker |first=Sebastian Ernest |last2=Elliott |first2=Annie B. |title=Water uptake by the crab-eating frog ''Rana cancrivora'', as affected by osmotic gradients and by neurohypophysial hormones |journal=[[Journal of Physiology]] |volume=207 |issue=1 |pages=119–32 |date=March 1970 |pmid=5503862 |pmc=1348696 |url=http://www.jphysiol.org/cgi/pmidlookup?view=long&pmid=5503862 |doi=10.1113/jphysiol.1970.sp009052}}</ref><ref>{{cite journal |last=Tatsunori |first=Seki |last2=Sakae |first2=Kikuyama |last3=Noboru |first3=Yanaihara |title=Morphology of the skin glands of the crab-eating frog: ''Rana cancrivora'' |journal=[[Zoological Science]] |volume=12 |issue=5 |pages=623–6 |date=1995-10-15 |url=http://ci.nii.ac.jp/naid/110003323347/en/ |doi=10.2108/zsj.12.623}}</ref> Adults can survive in salt water with salinity as high as 28 parts per thousand, and tadpoles can survive salinities as high as 39 parts per thousand.<ref>{{Citation
This frog can tolerate marine environments (immersion in sea water for brief periods or [[brackish]] water for extended periods) by increasing [[urea]] production and retention, and by remaining slightly hyperosmotic within urea and sodium flux.<ref>{{Cite journal |volume=39 |issue=1 |pages=167–177 |last=Schmidt-Nielsen |first=Knut |authorlink=Knut Schmidt-Nielsen |last2=Lee |first2=Ping |title=Kidney function in the crab-eating frog (''Rana cancrivora'') |journal=[[Journal of Experimental Biology]] |year=1962 |url=http://jeb.biologists.org/cgi/reprint/39/1/167.pdf }}</ref><ref>{{cite journal |last=Dicker |first=Sebastian Ernest |last2=Elliott |first2=Annie B. |title=Water uptake by the crab-eating frog ''Rana cancrivora'', as affected by osmotic gradients and by neurohypophysial hormones |journal=[[Journal of Physiology]] |volume=207 |issue=1 |pages=119–32 |date=March 1970 |pmid=5503862 |pmc=1348696 |url=http://www.jphysiol.org/cgi/pmidlookup?view=long&pmid=5503862 |doi=10.1113/jphysiol.1970.sp009052}}</ref><ref>{{cite journal |last=Tatsunori |first=Seki |last2=Sakae |first2=Kikuyama |last3=Noboru |first3=Yanaihara |title=Morphology of the skin glands of the crab-eating frog: ''Rana cancrivora'' |journal=[[Zoological Science]] |volume=12 |issue=5 |pages=623–6 |date=1995-10-15 |url=http://ci.nii.ac.jp/naid/110003323347/en/ |doi=10.2108/zsj.12.623}}</ref> Adults can survive in salt water with salinity as high as 2.8%, and tadpoles can survive salinities as high as 3.9%.<ref>{{Citation
| last = Gordon | first = Malcolm S.
| last = Gordon | first = Malcolm S.
| last2 = Schmidt-Nielsen | first2 = Knut | author2-link = Knut Schmidt-Nielsen
| last2 = Schmidt-Nielsen | first2 = Knut | author2-link = Knut Schmidt-Nielsen

Revision as of 20:39, 6 February 2016

Crab-eating frog
Fejervarya cancrivora from Bogor, West Java
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Dicroglossidae
Genus: Fejervarya
Species:
F. cancrivora
Binomial name
Fejervarya cancrivora
(Gravenhorst, 1829)
Synonyms

Rana cancrivora Gravenhorst, 1829
Rana cancrivora ssp. raja Smith, 1930
Fejervarya raja (Smith, 1930)

The crab-eating frog (Fejervarya cancrivora), is a frog native to south-eastern Asia including Taiwan,[2] China, the Philippines and more rarely as far west as Orissa in India.[3] It inhabits mangrove swamps and marshes and is the only known modern amphibian which can tolerate brief excursions into sea water.

This frog can tolerate marine environments (immersion in sea water for brief periods or brackish water for extended periods) by increasing urea production and retention, and by remaining slightly hyperosmotic within urea and sodium flux.[4][5][6] Adults can survive in salt water with salinity as high as 2.8%, and tadpoles can survive salinities as high as 3.9%.[7]

Cultural significance

It is locally favored for its eating quality and is often farmed for its edible legs.

References

  1. ^ Template:IUCN
  2. ^ Lue, Kuang-Yang. "Fejervarya cancrivora". BiotaTaiwanica. Retrieved 12 December 2012.
  3. ^ Rare species of frog, snake in Orissa
  4. ^ Schmidt-Nielsen, Knut; Lee, Ping (1962). "Kidney function in the crab-eating frog (Rana cancrivora)" (PDF). Journal of Experimental Biology. 39 (1): 167–177.
  5. ^ Dicker, Sebastian Ernest; Elliott, Annie B. (March 1970). "Water uptake by the crab-eating frog Rana cancrivora, as affected by osmotic gradients and by neurohypophysial hormones". Journal of Physiology. 207 (1): 119–32. doi:10.1113/jphysiol.1970.sp009052. PMC 1348696. PMID 5503862.
  6. ^ Tatsunori, Seki; Sakae, Kikuyama; Noboru, Yanaihara (1995-10-15). "Morphology of the skin glands of the crab-eating frog: Rana cancrivora". Zoological Science. 12 (5): 623–6. doi:10.2108/zsj.12.623.
  7. ^ Gordon, Malcolm S.; Schmidt-Nielsen, Knut; Kelly, Hamilton M. (1961), "Osmotic regulation in the crab-eating frog (Rana cancrivora)", Journal of Experimental Biology, 38 (3): 659–678
  • Berry, P. Y. (1975). The Amphibian Fauna of Peninsular Malaysia. Kuala Lumpur: Tropical Press.
  • Inger, Robert F. (1966). The Systematics and Zoogeography of the Amphibia of Borneo. Chicago (IL): Field Museum of Natural History. ISBN 983-99659-0-5.
  • Inger, Robert F.; Stuebing, Robert B. (1997). A Field guide to the Frogs of Borneo (2nd ed.). Kota Kinabalu, Borneo: Natural History Publications. ISBN 983-812-085-5.
  • Iskandar, Djoko Tjahono (1998). Amfibi Jawa dan Bali. Bogor (Indonesia): Puslitbang Biologi - LIPI. ISBN 979-579-015-3.
  • Iskandar, Djoko Tjahono; Colijn, Ed (December 2000). "Preliminary Checklist of Southeast Asian and New Guinean Herpetofauna. I. Amphibians". Treubia. 31 (3 Suppl): 1–133.
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