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Blue jellyfish age can be identified by color of their bell. They tend to be pale in appearance when young, but mature to have a brightly purple-blue (some yellow) colored bell. Although it is similar to the lion's mane jellyfish , the blue jellyfish is not as large, and has a translucent bell.
Organisms from this genus reside in tropical to sub-tropical waters all around the world. Like other cnidarians, they possess stinging cells called cnidoblasts. The most common species of this genus is the Porpita porpita, more commonly known as the "Blue Button Jellyfish." Often washing up on the coast of Florida, these particular hydrozoans ...
The hydroid colony, whose polyps can range from bright blue turquoise to yellow; the polyps resemble the tentacles of jellyfish. [10] [11] [full citation needed] Each strand has numerous branchlets, each of the knobs of stinging cells called nematocysts terminates at the distal end. The blue button has a single mouth located beneath the float ...
The colony has several different kinds of polyps, some of which are both feeding and reproductive, called gonozooids, and others protective, called dactylozooids. [ 11 ] The gonozooids each produce numerous tiny jellyfish by an asexual budding process , so that each Velella colony produces thousands of tiny jellyfish ( medusae ), each about 1 ...
Blue gelatinous creatures known as by-the-wind sailors often wash up on California beaches by the thousands in the springtime when the ocean warms. Blue jellyfish-like critters arrive in Bay Area ...
For example, in the North Sea, the lion's mane jellyfish and the blue jellyfish appear as distinct species. [11] On the East Coast of the United States there are at least two co-occurring species, C. fulva and C. versicolor. [12] Cyanea may be a species complex of recently diverged species. Cyanea annasethe Haeckel, 1880; Cyanea annaskala von ...
NBC reports, "They believe it is a rarely seen jellyfish plodding its way, not at great speed, through the Gulf of Mexico. The video was actually shot by an underwater gulf rig camera."
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. 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 [3 + 7 ⁄ 8 – 7 + 7 ⁄ 8 ...