Biology:Typhlocaris galilea

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Short description: Species of crustacean

Typhlocaris galilea
Typhlocaris galilea - plate from Transactions of the Linnean Society of London - CROP.jpg
Male. Plate from Calman, 1909
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Infraorder: Caridea
Family: Typhlocarididae
Genus: Typhlocaris
Species:
T. galilea
Binomial name
Typhlocaris galilea
Calman, 1909

Typhlocaris galilea is a species of troglobitic shrimp in the genus Typhlocaris, and is endemic to one pool and spring that feeds it, at Tabgha in Israel. The species is critically endangered and a conservation programme to conserve the species has begun.

Description

The relict[1] species was first described in 1909, by William Thomas Calman.[2]

The shrimp are semi-transparent and blind.[3] Adult specimens are approximately 3 inches (7.6 cm) long.[3] Their diet probably consists mainly of a small red tubificid worm, Isochaeta israelis.[4]

Distribution

The shrimp is endemic to one chamber of a Roman cistern, Ein-Nur octagonal pool (the private property of a monastery,[1] at [ ⚑ ] : 32°52′25″N 35°32′57″E / 32.8736°N 35.5493°E / 32.8736; 35.5493), and a warm (27 °C or 81 °F),[5] sulphuric,[5] saline[1] subterranean spring that feeds it, at Tabgha,[6] on the north shore of the Sea of Galilee in Israel.[3][7]

Conservation

The species is now critically endangered, as the extraction of ground water has allowed foreign water into the pool, changing its composition and temperature.[3] It is legally protected (Section 5, paragraphs D and E, of the Fisheries Rules of 1937 as amended).[8]

In 2013, the Israel Nature and Parks Authority approached the Jerusalem Biblical Zoo to develop a captive breeding programme for the species, with a view to later reintroduction.[3]

See also

  • Ayyalon Cave - a similar ecological niche where a related species lives

References

  1. 1.0 1.1 1.2 Henk K. Mienis. "Rediscovery of Heleobia annandalei in the Octogon pool of Tabgha, Israel". Tentacle. IUCN/SSC Mollusc Specialist Group. http://www.hawaii.edu/cowielab/tentacle/tentacle_13.pdf. 
  2. W. T. Calman (1909). "On a blind Prawn from the Sea of Galilee (Typhlocaris galilea, g. et sp. n.)". Transactions of the Linnean Society of London. 2nd ser., Zoology 11 (5): 93–97. doi:10.1111/j.1096-3642.1909.tb00194.x. https://www.biodiversitylibrary.org/page/16393586/. 
  3. 3.0 3.1 3.2 3.3 3.4 Karin Kloosterman (May 6, 2013). "Blind shrimp spared from extinction at Bible Zoo in Jerusalem". Green Prophet. http://www.greenprophet.com/2013/05/blind-shrimp-bible-zoo-jerusalem/. 
  4. Moshe Tsurnamal & Francis Dov Por (1971). "The subterranean fauna associated with the blind palaemonid prawn Typhlocaris galilea Calman". International Journal of Speleology 3 (3/4): 219–223. doi:10.5038/1827-806x.3.3.3. 
  5. 5.0 5.1 Rivka Gonen (2000). Biblical Holy Places: an Illustrated Guide. Paulist Press. ISBN 080913974X. 
  6. M. Tsurnamal (1978). "Temperature preference of the blind prawn, Typhlocaris galilea Calman (Decapoda, Caridea)". Crustaceana 34 (3): 225–234. doi:10.1163/156854078x00781. 
  7. M. Tsurnamal (1978). "The biology and ecology of the blind prawn, Typhlocaris galilea Calman (Decapoda, Caridea)". Crustaceana 34 (2): 195–213. doi:10.1163/156854078X00736. 
  8. "Legal analysis of the measures adopted by Mediterranean coastal states to minimize the impact of fishing activities on marine ecosystems and non-target species". Regional Activity Centre for Specially Protected Areas. 2003. http://sapbio.rac-spa.org/e1eng.pdf. 

Further reading

External links

Wikidata ☰ Q12410019 entry