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Sea Lamprey

Sea Lamprey. 300,000 lamprey. by tasha and hayley. Sea Lamprey.

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Sea Lamprey

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  1. Sea Lamprey 300,000 lamprey by tasha and hayley

  2. Sea Lamprey • The common sea lamprey is like an eel. It has many teeth like this. They are12 to 20 inches long. They weigh 8 to 13 ounces. They are grey, metallic violet and silver

  3. Suckers • They sea lamprey use their teeth, to suck the blood out of the prey. They suck until blood comes out.

  4. Video • http://www.youtube.com/watch?v=z5VkGqjR18g 

  5. Breeding • Most sea lampreys breed in fresh water. After they lay the eggs, they usually die.

  6. Video II • http://www.youtube.com/watch?v=5pysO5JyDDk 

  7. Facts About Sea Lamprey • Lampreys have a round, sucker like jawless mouth filled with rows of horny teeth, and a rasp like "tongue." (See picture at right) An internal ring of cartilage supports the rim of the mouth. Although lampreys sometimes prey on small invertebrates, they are better known as predators on fish. Fastening on to living fish, lampreys rasp into the flesh and feed on the body fluids. A fish attacked by lampreys may be severely weakened or even killed.

  8. Pictures

  9. Lamprey in the Lakes • Sea lamprey are native to the coastal regions of both sides of the Atlantic Ocean. They entered the Great Lakes through the Welland Canal about 1921. They were greatly to the decline of whitefish and lake trout in the Great Lakes. Since 1956, the USA and Canada have worked on protecting this from lamprey.

  10. Lake Huron problems • The sea lamprey are a problem in lake Huron. They have made many fish die and leave fishermen just ermen.

  11. A LOT • The sea lamprey have a great population. Especially in Lake Huron. There is more than 300000 in Lake Huron

  12. bibliography • http://seagrant.wisc.edu/greatlakesfish/sealamprey.html • http://www.gma.org/fogm/petromyzon_marinus.htm • http://www.ucmp.berkeley.edu/vertebrates/basalfish/petro.html

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