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Echinometra viridis, the reef urchin, is a species of sea urchin in the family Echinometridae. It is found on reefs in very shallow parts of the western Atlantic Ocean and the Caribbean Sea. It is found on reefs in very shallow parts of the western Atlantic Ocean and the Caribbean Sea.
Tripneustes gratilla, the collector urchin, is a species of sea urchin. Collector urchins are found at depths of 2 to 30 metres (7 to 100 ft) in the waters of the Indo-Pacific, Hawaii, the Red Sea, and The Bahamas. They can reach 10 to 15 centimetres (4 to 6 in) in size.
Diadema antillarum, also known as the lime urchin, black sea urchin, or the long-spined sea urchin, [2] is a species of sea urchin in the family Diadematidae. This sea urchin is characterized by its exceptionally long black spines. It is the most abundant and important herbivore on the coral reefs of the western Atlantic and Caribbean basin.
The group is working to restore 5 acres of coral reef in Puerto Rico by planting fragments across six reefs and returning long-spined sea urchins to the ecosystem.
32 types of saltwater fish for your aquarium. A saltwater aquarium is an exotic and striking addition to the home. But more than a striking piece of furniture, it’s a living habitat that is both ...
Reef safe Care Level Description Max size Black longspine urchin: Diadema setosum: Collector urchin, Priest hat urchin, Sea Egg: Tripneustes gratilla: Globe urchin, Tuxedo urchin: Mespilia globulus: Yes: Easy: Very common in the aquarium trade: 7.5 cm (3.0 in) Slate pencil urchin: Eucidaris tribuloides: Purple short spine pincushion urchin ...
These days, long-spined sea urchins are known as the gardeners of the sea. They tend the algae on the coral reefs they call home, making sure it never overwhelms their hosts. Spotting one on the ...
For the reef to recover after a bleaching event there needs to be a change in the balance between the rate of reef accumulation and reef erosion. It is necessary to maintain a healthy level of grazing by sea urchins to maintain a moderate algal cover and allow coral recruitment.