At a quick glance, jawless fish such as the lamprey above don't appear to have much in common with jawed fish or any other back-boned creature. |
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Although it is apparently unknown in chondrosteans, it is believed to be homologous to lamprey velar muscles. |
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They used small whole mackerel, trout, smelt, rudd, eel, perch, and lamprey. |
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When the fossilized lamprey lived, there were probably many types of jawless vertebrates. |
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Single forms were cloned from dogfish shark, greenland shark, both lamprey species, hagfish, and amphioxus. |
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So far 25 salmon, as well as two brown trout, one sea trout, three lamprey and two dace, have been trapped. |
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One form is lamprey like, whereas the other is closer to the more primitive hagfish. |
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Unlike with bony fish, only a handful of lamprey fossils have ever been found, because cartilage usually decays too fast to become fossilized. |
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The reason you have such a low lamprey count is the leeches crowded them out. |
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At a larger size, they prey on fish such as smelt, anchovies, lamprey, shad and salmon. |
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Although it counts as a sea fish, the lamprey goes up rivers to spawn and is indeed most often met in estuaries or the lower reaches of rivers. |
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Litman next plans to look for novel immune genes in jawless vertebrates, such as lamprey and hagfish. |
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In November 1964 he found a lampern, a relative of the blood-sucking lamprey. |
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The river lamprey or lampern, Lampetra fluviatilis, is a smaller fish, and so is the Arctic lamprey, L. japonica. |
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Also in the river are miller's thumbs and lamprey, a prehistoric fish, that buries into silt when young and behaves like a worm. |
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Rough fish comprise the American eel, black sucker, dogfish, gar, lamprey eel, redhorse, sheephead, and white sucker. |
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Arctic cod, arctic char, arctic cisco, arctic lamprey, pink salmon, and chum salmon are some common species of fish found in the ecozone. |
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Other commonly eaten seafoods include sardines, salmon, sole, sea bass, and hake, as well as eel, squid, octopus, and lamprey. |
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Aquatic species, including lamprey and Atlantic salmon, are found in the river. |
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If we want native fish such as the lake trout to make a comeback, the fight against the lamprey must continue. |
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When a lamprey larva undergoes metamorphosis into an adult lamprey, the endostyle breaks into fragments. |
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So there was an indirect facilitation, an indirect enhancement of the alewife, caused by prior invasion of the sea lamprey. |
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Examples include zebra mussel, the sea lamprey, lawn grubs, green crab and purple loosestrife. |
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They include the sea lamprey, zebra mussel, purple loosestrife, ruffe, round goby, spiny water flea and dozens of other species. |
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The commission is working on a new technology, including the use of pheromones, to disrupt the mating behaviour of sea lamprey. |
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The most common species of fish found in inland waters are pike, bream, carp, perch, eel, and lamprey. |
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We are very fortunate that sea lamprey is one exotic species we are able to control. |
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In fact, they do carry out some of the assessments for us in terms of sea lamprey. |
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The sea lamprey entered the Great Lakes from the Atlantic Ocean through canals that were constructed for shipping. |
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As the contract agent for sea lamprey control, the Canadian Department of Fisheries and Oceans played a major role in this rehabilitation. |
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I have to emphasize that sea lamprey control is the cornerstone of the Great Lakes fishery. |
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Sea lamprey populations are like a coiled spring, and we've learned that if you release control they rebound very rapidly. |
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With our present technologies, sea lamprey control will remain an ongoing cost of mitigation for the construction of shipping canals. |
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In this regard, I will be discussing two issues, the Asian carp and the sea lamprey, which are two invaders. |
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They contribute a tremendous amount in terms of fisheries assessment, and they work very closely with us in terms of sea lamprey control. |
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Sea lamprey research and control efforts have continued for more than 40Â years. |
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The use of lampricide to control the sea lamprey has reduced populations of Northern Brook Lamprey around the Great Lakes. |
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Some of the species that live in the ocean but enter freshwater to spawn are sea lamprey, Atlantic sturgeon, alewife, Atlantic salmon, arctic char, and American eel. |
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Several fish, such as the sea lamprey, Atlantic sturgeon, alewife, Atlantic salmon and American eel live most of their lives in the ocean but enter freshwater to spawn. |
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These conditions support a rich diversity of invertebrate life and important game fisheries, such as brown trout, brook lamprey, salmon, crayfish, and otter. |
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A few of the marine species that return to freshwater to spawn include sea lamprey, Atlantic sturgeon, alewife, Atlantic salmon, and American eel. |
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Whilst herrings, sprats and mackerel are still deservedly popular, eel sections, lamprey, gurnard, and many other salt and fresh water species are experimented with. |
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Cyclostome, a collective term for the living members of the superclass Agnatha, the lamprey and the hagfish. |
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The convention addresses the decline in productivity of some of the Great Lakes fisheries and seeks to prevent further serious damage to some of these fisheries caused by the parasitic sea lamprey. |
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The oldest unequivocal chordate remains come from the Lower Cambrian of south China, where small jawless fish similar to present-day lamprey and hagfish occur as part of the Chengjiang Biota. |
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Effective sea lamprey control allowed all of the management agencies around the Great Lakes to stock fish, because with sea lamprey control, fish could grow to large size and provide a fishery. |
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Peer into the river itself for the fish duo: brook lamprey and bullhead. |
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It has the responsibility of coordinating fisheries research in the Great Lakes, but its main function is to control the sea lamprey in the Great Lakes. |
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Contributions study Pacific and Atlantic salmon, anguillid and European silver eels, lamprey, and bluefin tuna. |
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Mannose-binding C-type lactin was isolated by affinity chromatography from sea lamprey plasma. |
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More than two thousand exhibitors from around the world displayed herring nets and salmon ladders, trout rods and eel spears, life buoys and lamprey baskets. |
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It came in through the canal system the same way the sea lamprey did, but could not establish or become abundant because of predation by the native predator. |
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The male sea lamprey, for example, will coax ovulating females into its nest by releasing enticing pheromones. |
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It would take the Pacific lamprey's cousin, the sea lamprey, to make Close's research possible. |
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Well-known examples are of course the zebra mussel and the sea lamprey. |
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It is home to wildlife including water voles, salmon, otters, kingfishers, dippers, sand martins, dragonflies, eels and lamprey. |
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Despite the success of control, it is unfortunate that sea lamprey populations are too large in all of the Great Lakes, with the possible exception of Lake Ontario. |
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Hagfish are not as aggressive as their relatives the lamprey. |
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Invasive alien species are plants or animals, such as the Asian longhorn beetle, the sea lamprey or the gypsy moth, that are introduced by human action outside their natural habitats, causing harm to our local ecosystems. |
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The impact of introduced species already in the system, from the sea lamprey to the zebra mussel, serve as harbingers of the economic and environmental costs to come if this crucial threat is not controlled. |
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Wherever the lamprey went and did its damage, the alewife followed. |
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The parasitic lamprey, which feeds on the body fluids of other fish, clinging to its victim with a suction cup mouth and rasping though the scales and skin with a sharp tongue, devastated many native fish populations. |
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The sea lamprey was considered one of the main culprits, and for good reason: it was a highly effective predator and was decimating the large fish populations of the Great Lakes as it moved west. |
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Approximately 170 aquatic alien invasive species, such as zebra mussels and sea lamprey, are not native to the Great Lakes ecosystem, and have dramatically impacted the ecology and economy of the lakes. |
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Prior to the invasion of the sea lamprey above Niagara Falls, Great Lakes fish communities were stressed by high fishing pressure and habitat loss. |
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Classification of sea lamprey attack marks on Great Lakes lake trout. |
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The non-native sea lamprey, also plaguing the Great Lakes, is a snakelike fish with a suction-cup mouth that attaches to native species and sucks their blood. |
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Furthermore, the consultants were honest enough to admit that the passes were not designed to cater for two of the Tyne's most endangered fish, the sea lamprey and the eel. |
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There have been plenty of Jacks around and the best of the week, a 9lb pike, fell to Mr J Danne who float fished lamprey injected with Wychwood winterised fish oil. |
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