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Tripneustes depressus is the largest sea urchin species in the Galápagos Islands with a mean diameter of 11.5 cm (4.5 in). The growth rate averages 0.5 mm (0.02 in) per month. [ 4 ] There is very little difference in morphology between T. depressus , Tripneustes gratilla and Tripneustes ventricosus ; they are suspected of being the same ...
Expert warns urchins vital to coral reef ecosystems now ‘functionally extinct’ in Red Sea Mysterious plague is wiping out sea urchins across the globe, scientists say Skip to main content
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 ...
It is one of the few sea urchin that can survive many hours out of water. [45] Sea urchins can be found in all climates, from warm seas to polar oceans. [40] The larvae of the polar sea urchin Sterechinus neumayeri have been found to use energy in metabolic processes twenty-five times more efficiently than do most other organisms. [46]
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.
Sea urchins in Israel's Gulf of Eilat have been dying off at an alarming rate, researchers announced Wednesday — a development that threatens the Red Sea’s prized coral reef ecosystems.
A deadly epidemic that is spreading through the Red Sea has killed off an entire species of sea urchin in the Gulf of Aqaba, imperilling the region's uniquely resilient coral reefs, an Israeli ...
The red sea urchin (Mesocentrotus franciscanus) [1] is a sea urchin found in the northeastern Pacific Ocean from Alaska to Baja California. It lives in shallow waters from the low-tide line to greater than 280 m (920 ft) deep, [2] and is typically found on rocky shores sheltered from extreme wave action in areas where kelp is available. [3] [4]