Primnoa pacifica

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Primnoa pacifica
Rockfish red tree coral.png
Rockfish hiding in Primnoa pacifica in Haida Gwaii, British Columbia
Scientific classification
Kingdom: Animalia
Phylum: Cnidaria
Class: Anthozoa
Order: Alcyonacea
Family: Primnoidae
Genus: Primnoa
Species: R. pacifica
Binomial name
Primnoa pacifica
Cairns & Bayer, 2005

Primnoa pacifica or Red Tree Coral is a cnidarian.[1] Red Tree Corals are listed as Habitat Areas of Particular Concern.[2]


Primnoa pacifica is typically a deep water coral normally found between 150 metres (490 ft) and 900 metres (3,000 ft).[3] In 2010, it was found in the unique habitat of the Tracy Arm fjord between 20 feet (6.1 m) and 100 feet (30 m).[3]


  1. ^ Cairns, Stephen D.; Bayer, Frederick M. (September 2005). "A review of the genus Primnoa (Octocorallia: Gorgonacea: Primnoidae), with the description of two new species". Bulletin of Marine Science. 32. 77 (2): 225–256. Retrieved 15 October 2012. 
  2. ^ Stone Robert P; Shotwell S Kalei. (2007). "State of deep coral ecosystems in the Alaska Region: Gulf of Alaska, Bering Sea and the Aleutian Islands" (PDF). In: Lumsden SE et al., eds. The State of Deep Coral Ecosystems of the United States. NOAA Technical Memorandum CRCP-3. Silver Spring, MD: 65–108. Retrieved 2013-03-11. 
  3. ^ a b Waller, RG; Stone, RP; Mondragon, J; Clark, CE (2011). "Reproduction of Red Tree Corals in the Southeastern Alaskan Fjords: Implications for Conservation and Population Turnover". In: Pollock NW, ed. Diving for Science 2011. Proceedings of the American Academy of Underwater Sciences 30th Symposium. Dauphin Island, AL: AAUS; 2011. Retrieved 2013-03-11. 

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