• Lethenteron ninae , a new nonparasitic lamprey species from the north-eastern Black Sea basin (Petromyzontiformes: Petromyzontidae). (193.10.57)
  • Lampreys /ˈlæmpreɪz/ (sometimes inaccurately called lamprey eels) are an ancient extant lineage of jawless fish of the order Petromyzontiformes /ˌpɛtroʊmɪˈzɒntɪfɔːrmiːz/, placed in the superclass Cyclostomata. (wikipedia.org)
  • European brook lamprey and the Western brook lamprey) is a jawless fish found in the European part of the Atlantic Ocean, the northwest Mediterranean, and on the European continent.This lamprey is the most common north european species and is also the smallest. (thewebsiteofeverything.com)
  • The common name "lamprey" is probably derived from Latin lampetra, which may mean "stone licker" (lambere "to lick" + petra "stone"), though the etymology is uncertain. (wikipedia.org)
  • There are about 38 known extant species of lampreys and five known extinct species. (wikipedia.org)
  • The occurrence of modern lampreys only since the Mesozoic (with significant genus and species radiations only in the Cenozoic) contrasts with the Paleozoic origins of the group and its basal nature. (wikipedia.org)
  • but only 18 species of lampreys engage in this micropredatory lifestyle. (wikipedia.org)
  • however, some species of Hydrozoa react to environmental stress by reverting their life cycle: i.e. an adult medusa goes back to the juvenile stage of polyp. (researchgate.net)
  • Unlike most species of lamprey, the adults do not migrate to sea nor do they have a parasitic phase. (thewebsiteofeverything.com)
  • The significant presence of degenerative and apoptotic processes could be related to the occurrence of a sort of metamorphosis when an adult medusa transforms itself into a polyp. (researchgate.net)
  • petra (Gr.), rock or stone, referring to their suctorial behavior (adults attach to rocks during nest building and mating). (mnhn.fr)
  • Lamprey distribution may be adversely affected by river habitat loss, overfishing and pollution. (wikipedia.org)
  • Adults are also found in the same general habitat as both life stages are commonly caught together. (193.10.57)
  • Lacking paired fins, adult lampreys have large eyes, one nostril atop the head, and seven gill pores on each side of the head. (wikipedia.org)
  • Lampreys live mostly in coastal and fresh waters and are found in most temperate regions. (wikipedia.org)
  • In Britain, at the time of the 11th-century Norman Conquest of England, lampreys were found as far upstream in the River Thames as Petersham. (wikipedia.org)
  • The pineal gland, a photosensitive organ regulating melatonin production by capturing light signals through the photoreceptor cell converting them into intercellular signals of the lamprey is located in the midline of its body, for lamprey, the pineal eye is accompanied by the parapineal organ. (wikipedia.org)
  • This is an adaptation to how the adults feed, by preventing the prey's body fluids from escaping through the gills or interfering with gas exchange, which takes place by pumping water in and out of the gill pouches instead of taking it in through the mouth. (wikipedia.org)
  • Picture of the European brook lamprey has been licensed under a Creative Commons Attribution-Share Alike . (thewebsiteofeverything.com)
  • One of the key physical components to the lamprey are the intestines, which are located ventral to the notochord. (wikipedia.org)
  • The occurrence of modern lampreys only since the Mesozoic (with significant genus and species radiations only in the Cenozoic) contrasts with the Paleozoic origins of the group and its basal nature. (wikipedia.org)
  • There are reported occurrences in Michigan of communal spawning of Silver Lamprey with Northern Brook Lamprey (Pine River), of Silver Lamprey with Sea Lamprey (Carp Lake, Devils, East Au Gres, and Rifle rivers), and of Silver Lamprey, with Sea Lamprey, and American Brook Lamprey (Carp Lake River). (mnhn.fr)
  • Lamprey juveniles (ammocoetes) live in burrows in silty river edges. (sciencelearn.org.nz)
  • As ammocoetes, lamprey are blind and browny-black in colour. (sciencelearn.org.nz)
  • Adults feed by ripping flesh from other fishes (Ref. 2850 ), ammocoetes feed on microscopic plants and animals just like other members of this family (Ref. 1998 ). (fishbase.net.br)
  • Adults are parasitic for 1 to 2 years. (mnhn.fr)
  • Parasitic adults are found in estuaries and the ocean, migrating to clear gravel riffles of streams to spawn (Ref. 5723 ). (fishbase.net.br)
  • The Non-parasitic Lamprey is an Australian endemic species that occurs in freshwaters. (australian.museum)
  • The Non-parasitic Lamprey has an eel-like body with 7 pairs of gill openings. (australian.museum)
  • Lampreys are anadromous - this means they migrate up rivers from the ocean to spawn. (sciencelearn.org.nz)
  • Feeding adults are usually found attached to other fishes in large rivers, lakes, and impoundments. (mnhn.fr)
  • Spawning adults are found in streams or lakes (Ref. 89241 ). (mnhn.fr)
  • Duration of adult stage 12-13 months in Québec (Ref. 89241 ). (mnhn.fr)
  • The adults do not feed in freshwater - so other freshwater fish and people wading in streams will not be preyed on! (sciencelearn.org.nz)
  • Before reaching sexual maturity, the lamprey returns to freshwater to breed and can use its circular sucker to latch onto and surmount obstacles such as rapids and small falls. (sciencelearn.org.nz)
  • Distribution of lampreys may also be adversely affected by dams and other construction projects due to disruption of migration routes and obstruction of access to spawning grounds. (wikipedia.org)
  • The returning adult lamprey spends up to 18 months inland, maturing sexually before spawning. (sciencelearn.org.nz)
  • Up to ten spawning lampreys have been found in a nest. (mnhn.fr)
  • Lampreys live mostly in coastal and fresh waters and are found in most temperate regions. (wikipedia.org)
  • Lamprey distribution may be adversely affected by river habitat loss, overfishing and pollution. (wikipedia.org)
  • In Britain, at the time of the 11th-century Norman Conquest of England, lampreys were found as far upstream in the River Thames as Petersham. (wikipedia.org)
  • cuspis (L.), point, referring to single (unicuspid) cusps of circumoral teeth of adults (compared with bicuspid circumoral teeth of congeners). (mnhn.fr)
  • Adults superficially resemble eels in that they have scaleless, elongated bodies, and can range from 13 to 100 cm (5 to 39.5 in) in length. (wikipedia.org)
  • The adult lamprey may be characterized by a toothed, funnel-like sucking mouth. (wikipedia.org)
  • Watch a lamprey using its sucker mouth to climb a wall in this video . (sciencelearn.org.nz)
  • Adults: 8.5-39.2 cm TL and wet weight 34-133 g for individuals 25.0-39.2 cm TL. (mnhn.fr)