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Lamprey

Lamprey. Suanet Negron Verenice Ochoa Paulo Rivera Jonathan Adair. Classification Of Lamprey. Kingdom Animalia Phylum Chordata Class Cephalaspidomorphi Order Petromyzontiformes Family Petromyzonidae Genus Petromyzon Species Marinus

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Lamprey

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  1. Lamprey Suanet Negron Verenice Ochoa Paulo Rivera Jonathan Adair

  2. Classification Of Lamprey • Kingdom Animalia • Phylum Chordata • Class Cephalaspidomorphi • Order Petromyzontiformes • Family Petromyzonidae • Genus Petromyzon • Species Marinus http://www.youtube.com/watch?v=AzZao6SVMyc

  3. Animal Related • Hagfish • They can go a months without food • Hagfish can absorb straight through their skin

  4. Habitat • Coastal region of Atlantic Ocean • Locally fount on east of United States & Canada • Some Lamprey are in fresh waters

  5. Movement • Movement by snaking their body forward & backwards through the water • The amplitude of this wave increases toward the tail • Duration of this cycle varies from 4 seconds to 100 milliseconds

  6. Feeding • Lamprey will often find a large animal & attach to it by biting down to attach to the host. • They will suck the blood & body fluid from the host • Lamprey can be eaten by humans

  7. Circulation & Respiration • Closed circulatory system • Two chambered heart • Single atrium • Single ventricle

  8. Reproduction • The female covers the fertilized eggs with san by swiping the bed with her anal fin. • They lay between 100,000 eggs at once • The eggs hatch between 55 & 120 days later. • The female lamprey releases the eggs & the male lamprey fertilizes it with his sperm (External Fertilization) • Using its structure to position itself as close as possible to the egg ( The sperm does not last long in the water)

  9. Nervous System The lateral line helps them detect or sense water current or pressure The medieval nostril helps them things in the water & know where is going Pineal organs behind the nostril it detects differences & light above the lamprey

  10. Interesting Facts At 450 million years of existence, the sea lamprey is one of the oldest fishes on earth They built nests for their eggs by using their months to make a shallows stone pit Lamprey are devoid of a mineralized skeleton, although trace of globular calcified cartilage may occur in the endoskeleton 40 members of the lamprey family are still found on earth

  11. Dissection

  12. Bibliography http://nelson.beckman.illinois.edu/courses/neuroethol/models/lamprey_swimming/lamprey_swim.html https://en.wikipedia.org/wiki/lamprey https://ncbi.nlm.nih.gov/pubmed/3746724 http://www.unh.edu/cme/news_and_events/lampreyrepro.pdf

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