Kemp's Ridley Sea Turtle

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Presentation transcript:

Kemp's Ridley Sea Turtle By: Elizabeth Pepper

Common & Latin Names Common Names- Kemp's Ridley Sea Turtle or Atlantic Ridley Sea Turtle Latin Name- Lepidochelys kempii

Life History Live in floating sargassum seaweed beds for their first years. Change color as they mature (colors on next slide)

Physical Characteristics Size- 60-90 cm. (24-35 in.) Weight- 45 kg (99 lbs) Color- Hatchlings- Dark Gray-Black Mature adults- Yellow-Green or White plastron and a Grey-Green carapace

Reproduction Age- 10-12 Gestation- The eggs are buried on shore for 45-70 days Litter size- 110 per clutch* Interesting Facts- Nest 2-3 times in a season, keeping 10-28 days between nestings Sex of hatchling is determined by temperature of in the area during incubation* Clutch- Al the eggs that are produced by birds, amphibians, or reptiles Incubation- The process of hatching eggs, cells, bacteria, & diseases

Diet Mollusks Crustaceans Jellyfish Fish Algae or Seaweed Sea Urchins

Habitat Warm shallow water that has muddy or sandy bottoms

Distribution

Ecology & Behavior Ecology Behavior Nests in large groups Nest on an average of every 1.5 years Behavior Strongly adapted to swimming Spends most of life in isolation Contact occurs only during mating & nesting

Predators, Parasites, & Diseases Tiger Sharks Herons Seabirds Killer Whales Humans Raccoons

Predators, Parasites, & Diseases Papilloma virus Mycobacterium chelonae Collectotrichum acutatum Cephalosporium sp. Fusarium solani Scolecobasidium constrictum Paecilomyces sp. Penicillium sp. Ozobranchus margoi

Predators, Parasites, & Diseases Fibropapillomatosis Osteoarthritis Pneumonia Dermatomycosis

Cause of Listing Human Activities Incidental take by shrimp trawlers Collection of eggs Killing adults & juveniles for meat Incidental take by shrimp trawlers

Status & Management Delaware Federal Management Endangered Critically Endangered Management Nesting under full protection in Mexico

Impacts if Eliminated Seagrass beds will become unhealthy Coral Reefs will become unhealthy Key habitat for other marine life will be gone Marine food webs & facilitating nutrient cycle from water to land will be gone

Sources http://www.nmfs.noaa.gov/pr/species/turtles/kempsridley.htm http://en.wikipedia.org/wiki/Kemp's_ridley_sea_turtle http://www.seaturtles911.org/turtle/kemps-ridley.htm http://animaldiversity.ummz.umich.edu/accounts/Lepidochelys_kempii/ http://www.seaturtle.org/pdf/ocr/AlfaroA_2010_Synopsisofinfectionsinseaturtlescau.pdf http://oceana.org/sites/default/files/reports/Why_Healthy_Oceans_Need_Sea_Turtles.pdf http://www.fws.gov/northflorida/seaturtles/turtle%20factsheets/kemps-ridley-sea-turtle.htm http://www.dnrec.delaware.gov/fw/NHESP/information/Pages/Endangered.aspx