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Known parasites of this shark include the isopod Gnathia trimaculata, [35] the copepod Kroeyerina cortezensis, [36] and the tapeworms Dasyrhynchus variouncinatus and Phyllobothrium sp. [37] [38] Silky sharks frequently intermingle with schools of scalloped hammerheads (Sphyrna lewini), and have been known to follow marine mammals.
Ommatokoita elongata is a 30 mm (1.2 in) long pinkish-white parasitic copepod, frequently found permanently attached to the corneas of the Greenland shark and Pacific sleeper shark. [3] [4] [5] The parasites cause severe visual impairment, but it is thought that the sharks do not rely on keen eyesight for their survival. [4]
The grey reef shark or gray reef shark (Carcharhinus amblyrhynchos, sometimes misspelled amblyrhynchus or amblyrhinchos) [2] is a species of requiem shark, in the family Carcharhinidae. One of the most common reef sharks in the Indo-Pacific , it is found as far east as Easter Island and as far west as South Africa .
The surrounding sea is of crucial importance for large pelagic species, such as the silky shark, lemon shark, hammerhead shark, whale shark, giant manta ray, and blue marlin. The islets in the area serve as the cleaning stations where these species rest to have their parasites removed by specialized fish.
Species known to be susceptible include a broad range of teleosts, seahorses, sharks, and some crustaceans. The disease can be caused by any one of about 20 distinct species of unicellular eukaryotes known as scuticociliates, which are free-living marine microorganisms that are opportunistic or facultative parasites.
Sharks portal; The blackspotted smooth-hound (Mustelus punctulatus) is a houndshark of the family Triakidae found on the continental shelves of the subtropical eastern Atlantic from the Mediterranean to the Western Sahara, between latitudes 45 and 20°N, from the surface to a depth of 250 m (820 ft). It can reach of a length of 1.5 m (4 ft 11 in).
For example, oceanic whitetip sharks dominate silky sharks of comparable size during feeding. [72] ... [122] [123] Both diseases and parasites affect sharks.
Anelasma are mesoparasitic barnacles that can be found attached to several species of deep-sea squaloid sharks, including at least black dogfish (Centroscyllium fabricii), combtooth dogfish (Centroscyllium nigrum), velvet belly lanternshark (Etmopterus spinax), fringefin lanternshark (E. schultzi), great lanternshark (E. princeps), brown ...