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Latest Diadema antillarum Stories

Our Coral Reefs Are Tougher Than We Thought
2012-07-12 16:38:51

redOrbit Staff & Wire Reports - Your Universe Online Coral reefs in the Indo-Pacific region pull through faster from major stress than their Caribbean counterparts, leading marine scientists said today. Dr George Roff and Professor Peter Mumby from the ARC Centre of Excellence for Coral Reef Studies and The University of Queensland told the 12th International Coral Reef Symposium in Cairns said that coral reefs in the Indo-Pacific region are more stout than the Caribbean reef...

76257c6dc7d6db051410ccddd37983a21
2011-01-17 07:56:27

Wildlife Conservation Society confirms sea urchins destroy reef building algae in overfished sites on Kenya's coast An 18-year study of Kenya's coral reefs by the Wildlife Conservation Society and the University of California at Santa Cruz has found that overfished reef systems have more sea urchins"”organisms that in turn eat coral algae that build tropical reef systems. By contrast, reef systems closed to fishing have fewer sea urchins"”the result of predatory fish keeping...

2008-10-02 03:00:25

By Alvarado, Juan Jose Abstract: Between October 2003 and July 2005, aggregation behavior of the sea urchin Astropyga pulvinta Lamarck was studied in Bahia Culebra, Costa Rica. This sea urchin forms aggregations during part of the year and then disappears. I quantified the number of individuals present in a defined area each month, their aggregation behavior between day and night, and their size. Also, temperature and nutrient concentrations of the water were sampled. There were...


Latest Diadema antillarum Reference Libraries

Diadema setosum
2013-11-21 12:27:30

Diadema setosum is a species of long-spined sea urchin in the family Diadematidae. It’s a typical sea urchin, which exceptionally long and hollow spines that are mildly venomous. D. setosum is different from other Diadema with five distinctive white colored dots that can be found on its body. The species is located throughout the Indo-Pacific region, from Australia and Africa to Japan and the Red Sea. Although it is capable of painful stings when stepped upon, the urchin is only somewhat...

Black Sea Urchin, Diadema antillarum
2013-11-06 11:22:21

Diadema antillarum, known also as the Lime Urchin, the Long-Spined Sea Urchin, or the Black Sea Urchin, is a species of sea urchin belonging to the family Diadematidae. It is characterized by its extremely long black spines. This species is the most plentiful and significant herbivore on the coral reefs of the western Atlantic and Caribbean basin. Then the population of these sea urchins is at a healthy level, they’re the main grazers which prevent algae overgrowth of the reef....

Diadema setosum
2013-04-30 15:23:43

Diadema setosum is a species of sea urchin that can be found in Indo-Pacific waters. Its range extends from the Red Sea to coasts of Australia in the east, and from Japan in the north to the east coast of Africa in the south. There have been a few individuals found outside of this natural range, leading experts to believe that it was introduced by natural or manmade causes. Two individuals were found off the coast of the Kaş peninsula in Turkey in 2006. These individuals represent the first...

Black Sea Urchin, Diadema antillarum
2013-04-30 12:59:49

The black sea urchin (Diadema antillarum), also known as the lime sea urchin or the long-spined sea urchin, is a species that can be found in the Caribbean basin and the western waters of the Atlantic Ocean. It prefers to inhabit coral reefs in these areas and resides at depths of up to 32.8 feet. This species has a test, or outer shell, that is similar that of most species of sea urchin. However, this species has longer spines, a trait from which it derived one of its common names. These...

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Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'