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Lake Champlain, bordered by New York, Vermont, and Quebec, and New York's Finger Lakes are also home to high populations of sea lampreys that warrant control. [112] Lake Champlain's lamprey control program is managed by the New York State Department of Environmental Conservation, the Vermont Department of Fish and Wildlife, and the U.S. Fish ...
The lamprey genome may serve as a model for developmental biology and evolution studies involving transposition of repetitive sequences. The lamprey genome undergoes drastic rearrangements during early embryogenesis in which about 20% of the germline DNA from somatic tissues is shed. The genome is highly repetitive.
Caspiomyzon hellenicus (Vladykov, Renaud, Kott & Economidis), 1982 (Greek brook lamprey) Caspiomyzon wagneri ( Kessler , 1870) (Caspian lamprey) This was formerly considered a monotypic genus containing only C. wagneri , but phylogenetic studies suggest that hellenicus and graecus , formerly placed in Eudontomyzon , also belong to this genus.
Eudontomyzon morii L. S. Berg, 1931 (Korean lamprey) Eudontomyzon stankokaramani M. S. Karaman , 1974 (Drin brook lamprey) Eudontomyzon vladykovi Oliva & Zanandrea, 1959 (Danubian brook lamprey) A sixth possible undescribed species, the Ukrainian migratory lamprey, Eudontomyzon sp. nov. 'migratory', became extinct in the late 19th century. [2 ...
Eudontomyzon danfordi, the Carpathian brook lamprey or Danube lamprey, is a species of lamprey in the family Petromyzontidae. It is found in Austria, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic, Hungary, Moldova, Romania, Serbia, Montenegro, Slovakia, and Ukraine. Unlike other brook lampreys, this fish is parasitic. [4]
This lamprey is usually about 13 to 32 centimetres (5.1 to 12.6 in) long, but specimens have been known to reach 63 centimetres (25 in) and 200 grams (7.1 oz) in weight. Non-anadromous individuals are rarely over 18 centimetres (7.1 in) long. [4] It is brown, gray, or olive in color with a paler belly. There are two dorsal fins located near the ...
Adult river lampreys measure from 25 to 40 cm (10 to 16 in) for the sea-going forms and up to 28 cm (11 in) for the lake forms. The very elongate body is a uniform dark grey above, lightening to yellowish off-white on the sides and pure white below. Like all lampreys, these fish lack paired fins and possess a circular sucking disc instead of jaws.
Studies that focused on closely related lamprey species (I. fossor) found that the guts of larval lampreys contained 97.9% organic detritus, 2.12% algae, and 0.09% bacteria. [6] After metamorphosis into the adult phase, southern brook lampreys do not feed but rely on stored fat reserves accumulated during the larval stage for energy and nutrients.