sea lamprey वाक्य
उदाहरण वाक्य
मोबाइल
- Using and economic model of recreational fishing to evaluate the benefits of Sea Lamprey control on the St . Mary s River.
- Sea lampreys mark favored spawning streams with this substance, allowing them to locate the streams at a great distance from open waters.
- Its numbers have dropped due to the introduction of exotic, non-native species such as the sea lamprey, loss of habitat and historic overharvest.
- The lamprey fell off after less than 6 meters, so the railway was determined to be effective at preventing the sea lamprey's migration.
- One of the first exotic invaders of the Great Lakes was the sea lamprey, an eel-like fish that preys on lake trout populations.
- The ballast water threat has been acknowledged since the 1950s when sea lamprey, hitching a ride in ballast water, infected the Great Lakes.
- By 1932, the sea lamprey had arrived in Georgian Bay, and, together with the Great Depression, it brought the decline of the fishing industry.
- The sea lamprey, native to the Atlantic Ocean, is believed to have invaded the Great Lakes through shipping channels in the early 20th century.
- Moments later, an oafish 10-pound carp lumbered by, followed by a wriggling sea lamprey, perhaps trying to hitch a ride with its rasping mouth.
- Some individuals can start the hematophagous feeding in the river before migrating to the sea, where sea lampreys prey on a wide variety of fish.
- From 1994 to 2000, he served as one of four fisheries management research and recommendations and for sea lamprey control for the Great Lakes fisheries.
- Sea lampreys parasitize other fishes for their diet, including elasmobranchs such as sharks and rays which have naturally high levels of urea in their blood.
- The six lakes also have identical rock formations, flora and fauna and similar environmental plagues, among them zebra mussels, sea lamprey, phosphorus runoff and mercury pollution.
- Corsydd Llangloffan SSSI is within the Cleddau Rivers Special Area of Conservation ( cSAC ) for otter, river lamprey, brook lamprey, sea lamprey and water crowfoot.
- The sea lamprey, which has been particularly damaging to the native lake trout population, is another example of a marine invasive species in the Great Lakes.
- Supporters say the bill will keep out foreign species such as the sea lamprey, ruffe and zebra mussel that are wrecking havoc on marine ecology and industries.
- The substance was discovered in 1958 when researching means to combat sea lampreys and it remains the primary lampricide ( lamprey-killer ) in the Great Lakes area.
- As for other Great Lakes fish, populations have also been affected by the accidental or intentional introduction of foreign species such as the sea lamprey and Eurasian ruffe.
- In contrast, the sea lamprey inflicts deep rasping wounds, and the muscle damage and loss of blood commonly weaken the host severely, affecting its reproduction or killing it.
- The end of a successful program to rid Lake Champlain of parasitic sea lampreys means anglers are once again hauling out fish that show obvious signs of attacks.
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