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Cyanagraea

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Genus of crabs

Cyanagraea
A consortium of crabs in an area of hydrothermal activity
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Infraorder: Brachyura
Family: Bythograeidae
Genus: Cyanagraea
de Saint Laurent, 1984
Species: C. praedator
Binomial name
Cyanagraea praedator
de Saint Laurent, 1984

Cyanagraea praedator is a species of crab that lives on hydrothermal vents, and the only species in the genus Cyanagraea.

It is found at depths of 2,535–2,630 m (8,317–8,629 ft) on the East Pacific Rise, where it lives "in the upper part of black smoker chimneys". Its haemocyanin has a strong affinity for oxygen, and displays a significant Bohr effect, which is unaffected by lactic acid.

Cyanagraea praedator is "by far the largest" species in the family Bythograeidae, growing to a maximum carapace size of 123.0 mm × 74.8 mm (4.84 in × 2.94 in).

The leech Bathybdella sawyeri has been observed attached to C. praedator.

References

  1. Peter Davie (2011). "Cyanagraea Saint Laurent, 1984". WoRMS. World Register of Marine Species. Retrieved November 27, 2011.
  2. Peter K. L. Ng; Danièle Guinot; Peter J. F. Davie (2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world" (PDF). Raffles Bulletin of Zoology. 17: 1–286. Archived from the original (PDF) on 2011-06-06.
  3. ^ Colin McLay (2007). "New crabs from hydrothermal vents of the Kermadec Ridge submarine volcanoes, New Zealand: Gandalfus gen. nov. (Bythograeidae) and Xenograpsus (Varunidae) (Decapoda: Brachyura)" (PDF). Zootaxa. 1524: 1–22. doi:10.11646/zootaxa.1524.1.1.
  4. Fabienne Chausson; Christopher R. Bridges; Pierre-Marie Sarradin; Brian N. Green; Ricardo Riso; Jean-Claude Caprais; François H. Lallier (2001). "Structural and functional properties of hemocyanin from Cyanagraea praedator, a deep-sea hydrothermal vent crab". Proteins: Structure, Function, and Bioinformatics. 45 (4): 351–359. doi:10.1002/prot.10014. PMID 11746683. S2CID 32797638.
  5. Stéphane Hourdez; François H. Lallier (August 2007). "Adaptations to hypoxia in hydrothermal-vent and cold-seep invertebrates" (PDF). Reviews in Environmental Science and Bio/Technology. 6 (1–3): 143–159. Bibcode:2007RESBT...6..143H. doi:10.1007/s11157-006-9110-3. S2CID 84727739. Archived from the original (PDF) on 2012-04-06.
  6. Eugene M. Burreson; Michel Segonzac (2006). "Morphological variability of Bathybdella sawyeri (Hirudinida: Piscicolidae) from hydrothermal vents on the Galápagos Rift and the South East Pacific Rise" (PDF excerpt). Zootaxa. 1286: 15–21.

Further reading

External links

Taxon identifiers
Cyanagraea


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