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Isopod fish parasites are mostly external and feed on blood. The larvae of the Gnathiidae family and adult cymothoidids have piercing and sucking mouthparts and clawed limbs adapted for clinging onto their hosts. [20] [21] Cymothoa exigua is a parasite of various marine fish. It causes the tongue of the fish to atrophy and takes its place in ...
Camallanus is a genus of parasitic roundworms in the family Camallanidae. Camallanus cotti is a parasite of several freshwater fish species including Tachysurus fulvidraco , the yellowhead catfish or Korean bullhead, a species of bagrid catfish found in eastern Asia from Siberia to China, Korea, Vietnam and Laos.
The following is a list of aquarium diseases. Aquarium fish are often susceptible to numerous diseases , due to the artificially limited and concentrated environment. New fish can sometimes introduce diseases to aquaria, and these can be difficult to diagnose and treat.
The ocean sunfish (Mola mola), also known as the common mola, is one of the largest bony fish in the world. It is the type species of the genus Mola, and one of five extant species in the family Molidae. [6] [7] It was once misidentified as the heaviest bony fish, which was actually a different and closely related species of sunfish, Mola ...
The name literally translates as "the fish louse with many children". The parasite can infect most freshwater fish species and, in contrast to many other parasites, shows low host specificity. It penetrates gill epithelia, skin and fins of the fish host and resides as a feeding stage (the trophont) inside the epidermis.
However, this obligate internal parasite so little resembles cnidarians (let alone other multicellular animals) that it, along with many other species in the class Myxosporea, were initially categorized as protozoa. It is nevertheless most closely related to jellyfish. This species, like most myxosporeans, lacks many of the diagnostic criteria ...
Velvet disease (also called gold-dust, rust and coral disease) is a fish disease caused by dinoflagellate parasites of the genera Amyloodinium in marine fish, and Oodinium in freshwater fish. The disease gives infected organisms a dusty, brownish-gold color. The disease occurs most commonly in tropical fish, and to a lesser extent, marine ...
Spironucleus salmonicida is a species of fish parasite.It is a flagellate adapted to micro-aerobic environments that causes systemic infections in salmonid fish. [2] The species creates foul-smelling, pus-filled abscesses in muscles and internal organs of aquarium fish.