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Coral Triangle

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Coral Triangle

National parks in the Coral Triangle
A map of the Coral Triangle's regions

The Coral Triangle is a geographical term so named as it refers to a roughly triangular area of the tropical marine waters of Indonesia, Malaysia, Papua New Guinea, Philippines, Solomon Islands and Timor-Leste that contain at least 500 species of reef-building corals in each ecoregion.[1] This region encompasses portions of two biogeographic regions: the Indonesian-Philippines Region, and the Far Southwestern Pacific Region.[2] The Coral Triangle is recognized as the global centre of marine biodiversity[3] and a global priority for conservation.[4] It also called the "Amazon of the seas" and covers 5.7 million square kilometers of ocean waters.[5] Its biological resources sustain the lives of over 120 million people.[6] According to the Coral Triangle Knowledge Network, about $3 billion in fisheries exports and another $3 billion in coastal tourism revenues are derived as annual foreign exchange income in the region.

The [7] launched in 2007.

Biodiversity

More than 3,000 species of fish live in the Coral Triangle, including the largest fish - the whale shark, and the coelacanth. It also provides habitat to six out of the world's seven marine turtle species.

The large area and extraordinary range of habitats and environmental conditions have played a major role in maintaining the staggering biodiversity of the Coral Triangle.[8]

Threats

The biodiversity and natural productivity of the Coral Triangle are under threat from poor marine management (including coastal development, and overfishing and destructive fishing), lack of political will, poverty, a high market demand and local disregard for rare and threatened species, and climate change. An estimated 120 million people live within the Coral Triangle, of which approximately 2.25 million are fishers who depend on healthy seas to make a living. These threats are putting at risk livelihoods, economies and future market supplies for species such as tuna.[9] Studies have highlighted the alarming decline of coral cover in this region.[10]

Conservation

The Coral Triangle is the subject of high-level conservation efforts by the region's governments, nature conservation organizations such as World Wide Fund for Nature, The Nature Conservancy and Conservation International, and donor agencies such as the Asian Development Bank, the Global Environment Facility and USAID.

Delineation

The primary criteria used to delineate the Coral Triangle were:

  • High species biodiversity (more than 500 coral species, high biodiversity of reef fishes, foraminifera, fungid corals, and stomatopods) and habitat diversity
  • Oceanography (currents)

There is considerable overlap between the boundaries of the Coral Triangle that are based primarily on high coral biodiversity (more than 500 species), and the boundaries based on the area of greatest biodiversity for coral reef fishes.[11][12]

Media

The 2013 documentary film Journey to the South Pacific tells the story of Coral Triangle conservation against the backdrop of island life.[13]

References

  1. ^ Veron et al. Unpublished data
  2. ^ Veron, J.E.N. 1995. Corals in space and time: biogeography and evolution of the Scleractinia. UNSW Press, Sydney, Australia: xiii + 321 pp.
  3. ^ Allen, G. R. 2007 Conservation hotspots of biodiversity and endemism for Indo-Pacific coral reef fishes. Aquatic Conserv: Mar. Freshw. Ecosyst. doi:10.1002/aqc.880
  4. ^ Briggs, J. C. 2005a. The marine East Indies: diversity and speciation. Journal of Biogeography 32: 1517-1522
  5. ^ "ADB to help improve resources management in coral triangle". 
  6. ^ "Coral reef destruction spells humanitarian disaster". 
  7. ^ WWF Coral Triangle Program
  8. ^ The Nature Conservancy. Coral Triangle Facts, Figures, and Calculations: Part II: Patterns of Biodiversity and Endemism, December 16, 2008
  9. ^ http://www.panda.org/what_we_do/where_we_work/coraltriangle/problems/ WWF - Problems in the Coral Triangle
  10. ^ Peñaflor et al. 2009. Sea-surface temperature and thermal stress in the Coral Triangle over the past two decades. Coral Reefs 28:4. pp 841-850
  11. ^ The Nature Conservancy. 2004. Delineating the Coral Triangle, its ecoregions and functional seascapes. Report on an expert workshop, held at the Southeast Asia Center for Marine Protected Areas, Bali, Indonesia, (April 30 - May 2, 2003), Version 1.1 (June 2004)
  12. ^ Hoeksema BW. 2007.Delineation of the Indo-Malayan Centre of Maximum Marine Biodiversity: The Coral Triangle. In: W. Renema (ed.) Biogeography, Time and Place: Distributions, Barriers and Islands, pp 117-178. Springer, Dordrecht.
  13. ^ Chang, Justin (December 13, 2013). "Film Review: ‘Journey to the South Pacific’". Variety. Retrieved 10 February 2014. 

External links

  • Coral Triangle Knowledge Network
  • Coral Triangle Initiative, main site
  • Coral Triangle Photo Expedition Blog
  • The Nature Conservancy - Coral Triangle Center
  • WWF Coral Triangle Programme - international website
  • WWF Coral Triangle Programme - US website
  • The biodiversity in the coral triangle of Indonesia | Why could develop so many species in Indonesia? (engl.)
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