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Lamprey
Related Category: Vertebrate Zoology
name for several primitive marine and freshwater fishes of the order Cyclostomata, or jawless fishes (see cyclostome).
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Lamprey Nuisance: On the other hand, lampreys have become a major plague in the North American Great Lakes after artificial canals allowed their entry during the early 20th century.
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Sea lamprey, Petromyzon marinus More Images » Where are they found? Atlantic Ocean, North America ...
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Lamprey are river spawning fish that swim upstream to lay eggs (spawn) in nests that they excavate by removing stones to create a pit in the stream bottom.
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Lampreys begin life as burrowing freshwater larvae (ammocoetes). At this stage, they are toothless, have rudimentary eyes, and feed on microorganisms.
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Lampreys
References:
Etnier, David A. and Wayne C. Starnes. 1993. The Fishes of Tennessee. University of Tennessee Press. Knoxville, Tennessee.
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Sea lampreys are considered a pest invasive species in the Great Lakes region. The species is native to the inland Finger Lakes and Lake Champlain in New York and Vermont.
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Arctic Lamprey Behaviour
No observations regarding Arctic Lamprey behavior have been submitted to the database yet.
Interesting Facts about Arctic Lampreys ...
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brook-lamprey
the small one hardly 15cm tall, small-finger-heavy brook-lampreys lives predominantly in small brooks and rivers. It spawns from May to June. Both...
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This group includes: Agnatha - lampreys and hagfish, Chondrichthyes - sharks, skates and rays, and Osteichthyes - all other fish. Alligator Gar (Atractosteus spatula) American Eel (Anguilla rostrata) Atlantic Croaker (Micropogonias undulatus) ...
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Cookie-cutter sharks (Isistius brasiliensis) attack them and bite off chunks of blubber, and lampreys (Petromyzon lampetra) have also been known to attack them.
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Marion Reservoir Habitat Conservation Plan, Marion, IL - Project manager, HCP for the state-threatened least brook lamprey and the state-endangered Indiana crayfish. City of Marion.
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In the most generally used system, the subphylum Vertebrata is divided into two superclasses: Agnatha, which includes the lamprey and other fishes without jaws; and Gnathostomata, which includes the fishes with hinged jaws.
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Some of the cyclostomes ( lampreys, hagfish, etc), a primitive group of fishes, do not have stomachs, and their digestive system is much reduced when compared to the other fishes.
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Family: Petromyzontidae, Lampreys view all from this family Description To 33" (84 cm). Eel-like; olive-brown above, usually mottled yellowish-brown on sides, pale below; some have shades of red, blue, and green on sides, others blackish.
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Lake trout were once a valued commercial fish in Lake Superior but were almost eliminated there by the sea lamprey, an exotic fish that attaches itself to other fish and eventually kills them.
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Lake trout have few predators with the exception of man and the sea lamprey, which almost wiped out some Great Lakes stocks following the opening of the Welland Canal between Lake Ontario and Lake Erie in 1829.
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The three main groups are: the jawless fish, including lamprey and hagfish; the cartilaginous fish (with a skeleton made of cartilage rather than bone), including sharks and rays; and the largest grouping -- the bony fish, including sturgeon, perch, ...
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The lake sturgeon was once located throughout the Great Lakes system, but over harvest by European settlers, destruction of food sources, lampreys and dam construction on spawning rivers have all had an impact on their survival.
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small fish, worms, crustaceans, (fresh water crayfish), elvers, lampreys, insects and molluses Where did this animal live? Throughout Europe and the United Kingdom and a smaller sub-species occurs i ...
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adversely affected by habitat loss, water pollution and siltation over much of its range
some populations have been reduced by the use of lampricides in rivers and streams for lamprey control
widespread in southern and central Ontario ...
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It was a silver fish with black fins and a black stripe on its spine. By the 1940's its numbers were greatly reduced due to over fishing. Predation from an introduced species, the sea lamprey, ...
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There are around 970 species of shark, ray and chimera — animals whose skeletons are made of light, flexible cartilage instead of bone. Lampreys and hagfish, which account for about 108 species, are so primitive they may not be fish at all, ...
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lake trout is a slow growing, long lived species that does not become sexually mature until age seven or eight. Lake trout populations have been greatly reduced over much of their range due to their susceptibility to parasitism by the sea lamprey.
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(After Rathke, slightly altered.) m, Mouth appearing as an elongated slit when relaxed (as in the lamprey); p, perforated pharynx; e, endostyle; g, gonads; 1, liver; at, level of atriopore; intestine; an, anus.
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 See also: Trout, Salmon, Sturgeon, Perch, Catfish
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