Overview

Brief Summary

Tiburonia granrojo, also known as the giant jellyfish, is a jellyfish of the family Ulmaridae discovered in 2003, and the only member of its genus yet identified. It is one of the largest sea jellies and unusual in a number of ways. They can grow up to three meters in diameter and have thick fleshy oral arms in place of the long tentacles found in most jellies. The entire jellyfish is deep red in color.

  • Raskoff, K. A.; G. I. Matsumoto (2004). "Stellamedusa ventana, a new mesopelagic scyphomedusa from the eastern Pacific representing a new subfamily, the Stellamedusinae". Journal of the Marine Biological Association of the UK 84 (01): 37–42.
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Ecology

Habitat

mesopelagic
  • UNESCO-IOC Register of Marine Organisms
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© WoRMS for SMEBD

Source: World Register of Marine Species

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Depth range based on 12 specimens in 1 taxon.
Water temperature and chemistry ranges based on 12 samples.

Environmental ranges
  Depth range (m): 287.88 - 1093.43
  Temperature range (°C): 3.398 - 7.171
  Nitrate (umol/L): 34.717 - 44.839
  Salinity (PPS): 34.107 - 34.487
  Oxygen (ml/l): 0.356 - 1.406
  Phosphate (umol/l): 2.691 - 3.500
  Silicate (umol/l): 53.279 - 134.312

Graphical representation

Depth range (m): 287.88 - 1093.43

Temperature range (°C): 3.398 - 7.171

Nitrate (umol/L): 34.717 - 44.839

Salinity (PPS): 34.107 - 34.487

Oxygen (ml/l): 0.356 - 1.406

Phosphate (umol/l): 2.691 - 3.500

Silicate (umol/l): 53.279 - 134.312
 
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Wikipedia

Granrojo

Tiburonia granrojo, is a jellyfish of the family Ulmaridae discovered in 2003, and the only member of its genus yet identified. It is one of the largest sea jellies and unusual in a number of ways. Tiburonia granrojo live at ocean depths of between 600 and 1500 metres and have been found across the Pacific Ocean in the Sea of Cortez, Monterey Bay, Hawaii and Japan. They can grow up to three meters (almost 10 feet) in diameter, according to the California Academy of Sciences, and have thick fleshy oral arms in place of the long tentacles found in most jellies. The entire jellyfish is deep red in color.[1]

Davidson Seamount specimen, 18 May 2002

To date, only 23 members of the species have been found and only one, a small specimen (under 15 cm) has been retrieved for further study. Several high resolution videos of granrojo have been taken by remote controlled submarines. Its discovery was announced by George Matsumoto and colleagues in Marine Biology in 2003.[2]

Notes

  1. ^ Perlman, David (2003-05-07). "Mysteries of the Animal World: New Jellyfish: Big Red has cluster of arms, not tentacles". San Francisco Chronicle: pp. 1. http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2003/05/07/MN182575.DTL. Retrieved 2008-07-16. 
  2. ^ Matsumoto, G. I.; K. A. Raskoff, D. J. Lindsay (2003). "Tiburonia granrojo n. sp., a mesopelagic scyphomedusa from the Pacific Ocean representing the type of a new subfamily (class Scyphozoa: order Semaeostomeae: family Ulmaridae: subfamily Tiburoniinae subfam. nov.)". Marine Biology 143 (1): 73–77. doi:10.1007/s00227-003-1047-2. 

Further reading

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