Intro:
Coral reefs are diverse underwater ecosystems held together by calcium carbonate structures secreted by corals. They are built by colonies of tiny animals found in marine waters that contain few nutrients and deliver ecosystem services to tourism, fisheries, and shoreline protection. Diadema species are common throughout their range and may be found on reef, sand, and rubble, and sometimes in large aggregations. There are several distinct genotypes of Diadema and this paper will talk mainly about the Diadema antillarum. The long spine black sea urchin Diadema antillarum is the most important algal community controller, since there are very few that can do this.
Thesis:
Diadema antillarum play a significant role in the growth and survival of many species including reefs by …show more content…
Together these activities make it one of the most significant organism involved in reef bioerosion.
In habitats where seagrasses intense nocturnal grazing surrounds patch reefs can produce bare sand spots around each patch. These patches represent the distance Diadema antillarum will travel before retreating to the reef with the rise of the moving sun.
*Supportive Evidence:
Second Body: Protection
Diadema antillarum have spines that are distinctively sharp, thin, and brittle, and can be more than 30 cm. They can be broken easily, readily penetrate organisms that contact, and release mild toxins in the process. In the Atlantic diadema antillarum is the largest and is found throughout the Caribbean and the subtropical Atlantic from Bermuda to Brazil.
Supportive Evidence:
Third body: Food/Feeding
-Diadema antillarum typically hides in reef crevices and holes during the day and feeds most actively in the late afternoon and at night.
-Food items appear to be influenced by local availability and by competitive interactions both within and between
Coral reefs are diverse underwater ecosystems held together by calcium carbonate structures secreted by corals. They are built by colonies of tiny animals found in marine waters that contain few nutrients and deliver ecosystem services to tourism, fisheries, and shoreline protection. Diadema species are common throughout their range and may be found on reef, sand, and rubble, and sometimes in large aggregations. There are several distinct genotypes of Diadema and this paper will talk mainly about the Diadema antillarum. The long spine black sea urchin Diadema antillarum is the most important algal community controller, since there are very few that can do this.
Thesis:
Diadema antillarum play a significant role in the growth and survival of many species including reefs by …show more content…
Together these activities make it one of the most significant organism involved in reef bioerosion.
In habitats where seagrasses intense nocturnal grazing surrounds patch reefs can produce bare sand spots around each patch. These patches represent the distance Diadema antillarum will travel before retreating to the reef with the rise of the moving sun.
*Supportive Evidence:
Second Body: Protection
Diadema antillarum have spines that are distinctively sharp, thin, and brittle, and can be more than 30 cm. They can be broken easily, readily penetrate organisms that contact, and release mild toxins in the process. In the Atlantic diadema antillarum is the largest and is found throughout the Caribbean and the subtropical Atlantic from Bermuda to Brazil.
Supportive Evidence:
Third body: Food/Feeding
-Diadema antillarum typically hides in reef crevices and holes during the day and feeds most actively in the late afternoon and at night.
-Food items appear to be influenced by local availability and by competitive interactions both within and between