2006年3月30日 · The most valuable species of the sea urchin is the grey sea urchin (Strongylocentrotus intermedius). It lives in the Far East of Russia at the coasts of Primorye, South Sakhalin, the Kuril Islands, near northern Japanese islands and the Korean Peninsula.

2024年4月16日 · Sea urchins are typically viewed as spiky, black, spherical creatures. However, many may be surprised to discover this animal group's immense variety. Characterized by vibrant hues, differing spike lengths, and even flattened shapes, this diversified group of marine animals offers much to explore.

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.

2023年5月11日 · Sea urchins are spiny, globe-shaped creatures found in oceans worldwide. There are over 950 species of sea urchins, which vary in size, color, and shape. In this essay, we will discuss some of the different types of sea urchins, their characteristics, and their habitats.

Sea urchins are found in every ocean and in every climate, from the tropics to the polar regions, and inhabit marine benthic (sea bed) habitats, from rocky shores to hadal zone depths. The fossil record of the Echinoids dates from the Ordovician period, some 450 million years ago.

In the Western Indian Ocean, its spines usually measure up to 4 centimeters and are usually dark grey or light purple, with some greenish-grey varieties. The pale ring at the base of each spine distinguishes the burrowing urchin from other sea urchins.

More than 900 species of sea urchins (or Echinoidea) inhabit the world’s seas and oceans, with variable coloration and shape. They are easily found when snorkeling, moving slowly on the bottom using their tube feet. Collector urchins often cover themselves with fragments of shell, coral, and seagrass.

Spatangus reginae Gray, 1851; Spatangus spinosissimus Desor in L. Agassiz & Desor, 1847b; Spatangus purpureus, commonly known as the purple heart urchin, [2] is a species of sea urchin in the family Spatangidae. It is found in the eastern Atlantic Ocean and the Mediterranean Sea, where it lives immersed in the sediment.

2014年1月20日 · Temnopleurus toreumaticus (Leske, 1778) and Temnopleurus reevesii (Gray, 1855) are temnopleurid sea urchins that inhabit Japanese waters (Nishimura 1995; Shigei 1986: Kitazawa et al. 2007).

2018年12月27日 · Habitat conditions, as qualitative and quantitative composition of aquatic vegetation and oceanographic factors, are compared for six populations of sea urchin Strongylocentrotus intermedius...