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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.
Red sea urchins age like they’re in a perpetual spa day. Some live over 200 years without showing signs of aging. In fact, a 100-year-old sea urchin is just as spry as a teenager.
Specimens of the Red Sea urchin Strongylocentrotus franciscanus have been found to be over 200 years old. [ 90 ] Many sub-families of the marine fish Oreosomatidae , including the Allocyttus , Neocyttus , and Pseudocyttus (collectively referred to as the Oreos) have been reported to live up to 170 years, based on otolith-increment estimates and ...
The coast of Southern California is known as a source of high quality uni, with divers picking sea urchin from kelp beds in depths as deep as 24 m/80 ft. [87] As of 2013, the state was limiting the practice to 300 sea urchin diver licenses. [87] Though the edible Strongylocentrotus droebachiensis is found in the North Atlantic, it is not widely ...
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 ...
Astropyga radiata, the red urchin, fire urchin, false fire urchin or blue-spotted urchin, is a species of sea urchin in the family Diadematidae. It is a large species with long spines and is found in the tropical Indo-Pacific region. It was first described in 1778 by the German naturalist Nathaniel Gottfried Leske.
One of the most notorious sea urchin mass deaths took place in the Caribbean Sea in 1983, affecting a black-spined urchin species called Diadema antillarum. At the time, scientists were unable to ...