Search results
Results from the WOW.Com Content Network
The name urchin is an old word for hedgehog, which sea urchins resemble; they have archaically been called sea hedgehogs. [ 6 ] [ 7 ] The name is derived from the Old French herichun , from Latin ericius ('hedgehog').
The Diadematidae are a family of sea urchins. Their tests are either rigid or flexible and their spines are long and hollow. [2] Astropyga Gray, 1825 Astropyga radiata (Leske, 1778), extant; Astropyga pulvinata (Lamarck, 1816), extant; Astropyga magnifica (Clark, 1934), extant; Centrostephanus Peters, 1855 Centrostephanus asteriscus (Agassiz ...
It is one of the most abundant, widespread, and ecologically important shallow water genera of tropical sea urchins. It is found in all tropical oceans, although is ubiquitous in the Indo-Pacific region, where it inhabits depths down to 70 m. However each species inhabits roughly separate areas of ocean. Long-spined urchins Diadema, London Zoo.
Diadema antillarum has a "shell," similar to most other sea urchins. What distinguishes the Diadema is the length of its spines. Most sea urchin spines are 1–3 cm, but the spines in this species are usually 10–12 cm in length, and can grow as long as 30 cm in very large individuals.
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
Sea urchin gonads are highly prized in some Asian and European seafood markets where demand has been increasing. [5] In the New Zealand market, the roe can reach NZ$70 per kg. [ 18 ] However, because E. chloroticus is not well known in Japan and has a reputation for having a bitter taste, this sea urchin is unable to reach a high price in ...
In the picture, the purple-spined diadema sea urchins appear at healthy levels, a good sign for reef growth. “They’re kind of like chocolate-covered peanuts. Everybody likes to eat them on the ...
Diadema savignyi is a species of long-spined sea urchin belonging to the family Diadematidae. Common names include long-spined sea urchin , black longspine urchin and the banded diadem . It is native to the east coast of Africa, the Red Sea, the Indian Ocean and western Pacific Ocean.