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Around 7,500 whale lice live on a single whale. [3] With some species of whale louse, whale barnacle infestations play an important role. On the right whale, the parasites live mainly on callosities (raised callus-like patches of skin on the whales' heads). The clusters of white lice contrast with the dark skin of the whale, and help ...
Cyamus boopis is a species of whale louse in the family Cyamidae. [1]This is an ectoparasite that lives exclusively on humpback whales.The infestation is most concentrated around the genital apertures, but occurs on all parts of the body, most commonly where there is an infestation of the barnacle species Coronula diadema.
Almost all species of whale lice are specialized towards a certain species of whale, and there can be more than one species per whale. Whale lice eat dead skin, resulting in minor wounds in the skin. Whale louse infestations are especially evident in right whales, where colonies propagate on their callosities. [102]
Cryptolepas is abundant on the gray whale, but has been recorded on the orca, the beluga whale, and in the stomach of the topsmelt silverside (Atherinops affinis). [26] Topsmelt are known to pick off the dead skin and whale lice often found in association with barnacles. [25] Tubicinella major has been recorded only on the southern right whale ...
Asellus aquaticus can breed throughout the year, if the temperature is high enough: they do not breed under cold temperatures. Maturity can be reached in few months under warm summer temperatures, but maturation may take as much as two years in permanently cold water bodies (e.g., high-latitude or mountain waters). [3]
Spade-toothed whales are the world’s rarest, with no live sightings ever recorded. No one knows how many there are, what they eat, or even where they live in the vast expanse of the southern ...
Amphipoda (/ æ m ˈ f ɪ p ə d ə /) is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods (/ ˈ æ m f ɪ p ɒ d z /) range in size from 1 to 340 millimetres (0.039 to 13 in) and are mostly detritivores or scavengers.
Like other right whales, the North Atlantic right whale, also known as the northern right whale or black right whale, [2] is readily distinguished from other cetaceans by the absence of a dorsal fin on its broad back, short, paddle-like pectoral flippers and a long arching mouth that begins above the eye. Its coloration is dark grey to black ...