But for an almost perfectly spherical fish like the adorable little lumpsucker, life is rather more complex.
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Bakkafrost owns 40% of a lumpsucker cleaner fish farm in Svínoy.
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Lernaeocera branchialis, the "cod worm", is a copepod that infects gadoids. The first host used by cod worm is a flatfish or lumpsucker, which it captures with grasping hooks at the front of its body. It penetrates the lumpsucker with a thin filament, which it uses to suck the host's blood. The nourished cod worm then mates with another one on the lumpsucker.
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The Pacific spiny lumpsucker (Eumicrotremus orbis) is a species of bony fish in the family Cyclopteridae.
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Pacific spiny lumpsuckers are most commonly found attached to solid objects and are ineffective swimmers. They are considered harmless to humans. Pacific spiny lumpsucker with modified fin visible.
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In terms of length, lumpsuckers range in size from in the case of Lethotremus awae up to more than in the case of the common lumpsucker Cyclopterus lumpus. Eumicrotremus phrynoides and Eumicrotremus orbis demonstrating adhesive pelvic discs.
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In Norway, of 524 fish prey items, the common lumpsucker (Cyclopterus lumpus), which averages up to but is usually smaller, made up 24% of fish taken and the Atlantic wolffish (Anarhichas lupus) made up 17% of fish taken.Collette, B., Fernandes, P. & Heessen, H. 2015. Anarhichas lupus. The IUCN Red List of Threatened Species 2015: e.T18155993A44739312.
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The smooth lumpfish is an iteroparous gonochoristic species with determinate fecundity, group- synchronous ovary organization, total spawning (release of 1 batch of eggs per breeding season), and external fertilization.Zhukova, K., Maznikova, O. A., & Orlov, A. M. (2018). Gonadal maturation of the female smooth lumpsucker (Aptocyclus ventricosus). Fishery Bulletin, 116(2), 153-160. doi:10.7755/fb.116.2.
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The pacific spiny lumpsucker is a globular shaped fish that typically measures in length, with a maximum known length of around . The body of the fish is covered in cone-shaped plates, called tubercles. Females are dull green in color, while males are dull orange to reddish brown. The pacific spiny lumpsucker's pelvic fins have evolved into a large suction cup, allowing it to attach to surfaces.
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It has many life stages, some of which are motile and some of which are sessile. It goes through two parasitic stages, one where it parasitizes as a secondary host a flounder or lumpsucker, and another stage where it parasitizes as a primary host a cod or other fishes of the cod family (gadoids). It is a pathogen that negatively impacts the commercial fishing and mariculture of cod-like fish.
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Cyclopterus lumpus, the lumpsucker or lumpfish, is a species of marine fish in the family Cyclopteridae (lumpsuckers). It is the only member of the genus Cyclopterus. It is found in the North Atlantic and adjacent parts of the Arctic Ocean, ranging as far south as Chesapeake Bay (rare south of New Jersey) on the North American coast and Spain (rare south of the English Channel) on the European coast.
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Although cod feed primarily on adult sprat, sprat tend to prey on the cod eggs and larvae. Cod and related species are plagued by parasites. For example, the cod worm, Lernaeocera branchialis, starts life as a copepod-like larva, a small free-swimming crustacean. The first host used by the larva is a flatfish or lumpsucker, which it captures with grasping hooks at the front of its body.
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Fish species of the gulf include Atlantic salmon, viviparous eelpout, gobies, belica, loach, European chub, common minnow, silver bream, common dace, ruffe, Crucian carp, stickleback, European smelt, common rudd, brown trout, tench, pipefish, burbot, perch, gudgeon, lumpsucker, roach, lamprey, vendace, garfish, common whitefish, common bream, zander, orfe, northern pike, spined loach, sprat, Baltic herring, sabre carp, common bleak, European eel and Atlantic cod.Fishing page of Saint-Petersburg . Fishers.spb.ru. Retrieved on 2011-08-14. Commercial fishing is carried out in spring and autumn.
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Lumpsuckers are a poorly studied group, with little known of their behaviour and biology. At least some species are known to travel great distances in order to spawn in shallow, intertidal waters (from December to June in the smooth lumpsucker); this may well be true of all species. Males are also known to guard the brood of spherical eggs. One of the peculiarities of Lumpsuckers' neural system is that they lack Mauthner cell neurons in their hindbrain, while these cells are present in virtually all other teleost fish.
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However, diseases, and parasites such as the sea louse, have had a detrimental effect on the industry and have led to many different ideas on how to combat the parasite. Mortality rates of salmon during the 1990s and 2000s was rated at about 20% of eventual production tonnage. The indications are that this percentage is increasing. Companies have been moving away from using chemical and water washes to rid the salmon of lice, with a more 'natural' method being the use of wrasse and lumpsucker fish which clean the fish of the parasites.
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MAGNI publication no. 008 The giant squid has been recorded on five occasions The basking shark (Cetorhinus maximus) is often seen off the west coast of Ireland The Porcupine Abyssal Plain which has an average depth of 4,774 m is on the continental margin southwest of Ireland. It is the habitat for many deep sea fish and was first investigated in the summers of 1868 and 1869 by Charles Wyville Thomsons H.M.S. Porcupine expedition. Other notable fish include the basking shark, ocean sunfish, conger eel, hagfish, boarfish (Capros aper), large-eyed rabbitfish, lumpsucker, cuckoo wrasse, and the thresher shark.
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The female moults once more before reattaching to a sprat, either on its external surface or by invading the eye; while in the eye, the female transforms into a mature adult with two attached strings of eggs. The earliest naupliar stages take place before the eggs hatch and are released from the strings. Altogether there are fourteen developmental stages. The life cycle is very similar to that of Lernaeenicus branchialis, a parasite of the European flounder (Pleuronectes flesus), the common sole (Solea solea) and the lumpsucker (Cyclopterus lumpusbut), but the cycle is slower, with each of the developmental stages taking longer.
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