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African coral reefs

Coral reefs in Africa

Coral reefs in Africa

African coral reefs are the coral reefs which are present in Africa. Most are found along the eastern and southern coasts of Africa. The east coast corals extend from the Red Sea to Madagascar in the south, and are an important resource for the fishersmen of Kenya, Tanzania, Mozambique and Madagascar. Some cold-water reefs are also found along the northwestern part of Africa, i.e. near the Azores, Madeira, Canary Islands and Cape Verde

Western African reefs

In some of the western African reefs (Azores, Canary Islands, Madeira) there is a trawling ban in place (initially set by EU's Regulation (EC) No 2287/2003

Eastern and Southern African reefs

As with coral reefs elsewhere, African coral reefs are more biologically diverse than the surrounding ocean, and support species such as the mantis shrimp, potato grouper, humphead wrasse and maxima clam, as well as many seaweeds and corals.

On the east coast, temperatures average about 26 C over the year. The average rainfall is highest between January and April, at about 300 mm, and lowest during August to November, at about 100 mm.

There are multiple threats to the reefs, such a tourist diving and damaging the corals, or taking samples. Then there are industrial run-offs and pollutants, untreated sewage and the increasing sediment flows in rivers that threaten all of the coastal ecosystems. The reef is also threatened by climate change. Due to global warming, the sea surface temperature increases and in 1997/98 a particularly severe 'El Nino' killed 90 percent of corals on the reef. The CORDIO (COral Reef Degradation in the Indian Ocean) NGO have set up an East African task force to monitor the reef's management.

References

References

  1. (2017-09-25). "Discover a special coral of Tenerife: the black coral".
  2. "the Cold-water coral, deep-sea coral and deep-water coral resource - Azores, Madeira and Canary Islands".
  3. "West Africa, Marine".
  4. Admin. (2016-03-04). "Three New Species of Azoox Coral from West African Coral Reefs".
  5. [https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02003R2287-20041109 Document 02003R2287-20041109]
  6. Van Dyke, F; ''Conservation biology: foundations, concepts, applications'', Springer 2008, p 354
  7. Wilkinson, C; ''Status of coral reefs around the world, 2002'', Australian Institute of Marine Science 2002, p 11
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