3/30/2023 0 Comments North bloodshore jellyfish![]() ![]() They can vary greatly in size: although capable of attaining a bell diameter of over 2 m (6 ft 7 in), those found in lower latitudes are much smaller than their far northern counterparts, with a bell about 50 cm (20 in) in diameter. Lion's mane jellyfish ( Cyanea capillata) are named for their showy, trailing tentacles reminiscent of a lion's mane. In 2015, Russian researchers announced a possible sister species, Cyanea tzetlinii found in the White Sea, but this has not yet been recognized by other authoritative databases such as WoRMS or ITIS. Populations in the western Pacific around Japan are sometimes distinguished as Cyanea nozakii, or as a subspecies, C. Two distinct taxa, however, occur together in at least the eastern North Atlantic, with the blue jellyfish ( Cyanea lamarckii Péron & Lesueur, 1810) differing in color (blue, not red) and smaller size (10–20 cm diameter, rarely 35 cm ). The taxonomy of the Cyanea species is not fully agreed upon some zoologists have suggested that all species within the genus should be treated as one. Taxonomy Ĭyanea capillata, expanding (top), contracting (bottom) The lion's mane jellyfish uses its stinging tentacles to capture, pull in, and eat prey such as fish, zooplankton, sea creatures, and smaller jellyfish. Lion's mane jellyfish have been observed below 42°N latitude for some time in the larger bays of the East Coast of the United States. The largest recorded specimen was measured off the coast of Massachusetts in 1865 and had a bell with a diameter of 210 centimetres (7 feet) and tentacles around 36.6 m (120 ft) long. ![]() Similar jellyfish – which may be the same species – are known to inhabit seas near Australia and New Zealand. It may also drift into the southwestern part of the Baltic Sea (where it cannot breed due to the low salinity). It is common in the English Channel, Irish Sea, North Sea, and in western Scandinavian waters south to Kattegat and Øresund. Its range is confined to cold, boreal waters of the Arctic, northern Atlantic, and northern Pacific Oceans. The lion's mane jellyfish ( Cyanea capillata), also known as the giant jellyfish, arctic red jellyfish, or the hair jelly, is one of the largest known species of jellyfish. ![]()
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