Crab-eating frog explained

The crab-eating frog (Fejervarya cancrivora) is a frog native to south-eastern Asia including Taiwan,[1] China, Sumatra in Indonesia,[2] the Philippines and more rarely as far west as Orissa in India.[3] It has also been introduced to Guam, most likely from Taiwan.[4] It inhabits mangrove swamps and marshes and is one of 144 known modern amphibians which can tolerate brief excursions into seawater, and is possibly the only extant marine amphibian.[5]

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.[6] [7] [8] Adults can survive in salt water with salinity as high as 2.8%, and tadpoles can survive salinities as high as 3.9%.

Diet

The food sources of the crab-eating frog are mainly determined by the locally available prey. Near fresh water, its diet consists largely of insects. But in an environment with brackish water, small crustaceans, including crabs, form the main part.[9]

Human consumption

In Southeast Asia, the crab-eating frog is locally hunted for food and is often farmed for its edible legs, including in Java, Indonesia.[10]

References

External links

Notes and References

  1. Web site: Fejervarya cancrivora . Lue . Kuang-Yang . BiotaTaiwanica . 12 December 2012 . https://web.archive.org/web/20161216040645/http://amphibia.biota.biodiv.tw/pages/380 . 16 December 2016 . dead .
  2. Tanjung RD, Kusrini MD, Mardiastuti A, Yustian I, Setiawan A, Iqbal M. 2023. Amphibian community structure in Isau-Isau Wildlife Reserve, South Sumatra, Indonesia. Biodiversitas 24: 6836-6843.
  3. https://archive.today/20130125062336/http://www.hindustantimes.com/Rare-species-of-frog-snake-in-Orissa/Article1-232864.aspx Rare species of frog, snake in Orissa
  4. Wostl, Elijah, Eric N. Smith, and Robert N. Reed. 2016. Origin and Identity of Fejervarya (Anura: Dicroglossidae) on Guam. Pacific Science 70(2):233-241. https://doi.org/10.2984/70.2.9
  5. 10.1655/HERPMONOGRAPHS-D-14-00006. Occurrence of Amphibians in Saline Habitats: A Review and Evolutionary Perspective. Herpetological Monographs. 29. 1–27. 2015. Hopkins. Gareth R.. Brodie. Edmund D.. 83659304.
  6. 39 . 1 . 167–177 . Schmidt-Nielsen . Knut . Knut Schmidt-Nielsen . Lee . Ping . Kidney function in the crab-eating frog (Rana cancrivora) . . 1962 . 10.1242/jeb.39.1.167 . 13908824 .
  7. Dicker . Sebastian Ernest . Elliott . Annie B. . Water uptake by the crab-eating frog Rana cancrivora, as affected by osmotic gradients and by neurohypophysial hormones . . 207 . 1 . 119–32 . March 1970 . 5503862 . 1348696 . 10.1113/jphysiol.1970.sp009052.
  8. Tatsunori . Seki . Sakae . Kikuyama . Noboru . Yanaihara . Morphology of the skin glands of the crab-eating frog: Rana cancrivora . . 12 . 5 . 623–6 . 1995-10-15 . 10.2108/zsj.12.623. 86285729 . free .
  9. Annie B. Elliott . Letha Karunakaran . Diet of Rana cancrivora in fresh water and brackish water environments . . 174 . 2 . 203–215 . October 1974 . 10.1111/j.1469-7998.1974.tb03152.x.
  10. Kusrini, MD (2005). Edible frog harvesting in Indonesia: evaluating its impact and ecological context. Ph.D. dissertation, James Cook University.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Crab-eating frog".

Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2024, A B Cryer, All Rights Reserved. Cookie policy.