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Sea urchins or urchins (/ ˈ ɜːr tʃ ɪ n z /) are typically spiny, globular animals, echinoderms in the class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal to 5,000 metres (16,000 ft; 2,700 fathoms). [1]
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 ...
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.
Echinus esculentus, the European edible sea urchin or common sea urchin, is a species of marine invertebrate in the Echinidae family. It is found in coastal areas of western Europe down to a depth of 1,200 m (3,900 ft). [3] It is considered "Near threatened" in the IUCN Red List of Threatened Species. [1] Test of Echinus esculentus
Toxopneustes pileolus, commonly known as the flower urchin, is a widespread and commonly encountered species of sea urchin from the Indo-West Pacific. It is considered highly dangerous, as it is capable of delivering extremely painful and medically significant stings when touched.
The green sea urchin occurs in tropical waters in the western Atlantic Ocean. The subspecies occupy different geographical areas. L. v. variegatus occurs in the Caribbean Sea, southern Florida, the Yucatán peninsula and northern Brazil but not Barbados while L. v. carolinus is found from North Carolina southwards to the Caribbean Sea and Gulf of Mexico.
Echinocardium cordatum, also known as the common heart urchin [2] or the sea potato, [3] is a sea urchin in the family Loveniidae. It is found in sub-tidal regions in temperate seas throughout the world. [4] [5] It lives buried in the sandy sea floor.
Diadema setosum is a widely distributed species of sea urchin. Its range stretches throughout the Indo-Pacific basin including Malaysia, [7] longitudinally from the Red Sea and then eastward to the Australian coast. Latitudinally, the species can be found as far north as Japan and its range extends as far south as the southern tip of the ...