Marine+Reptiles+Virtual+Field+Trip copy

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Biology

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Dec 6, 2023

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Read the information on Marine Reptiles in your module before experiencing this Marine Reptile Virtual Field Trip Part I. We’re going to take a virtual field trip to observe and study Sea Turtles! Click on links or right click to copy, then paste url in a browser. 1. View the Florida Keys Turtle Web Cam 2. View this live: Mavis Turtle Cam (Links to an external site.) Click on each turtle's name to learn more about them. "Named after the Dolphin Tale 2 character “Mavis,” a rescued, rehabilitated and released sea turtle, the new habitat was made to house the animal actor who played him, Harold (Links to an external site.) . Currently, Mavis’ Rescue Hideaway is also home to other sea turtles (see links on this page), as well as red fish, hogfish, tarpon, lookdowns and stingrays." Sea turtles , also called marine turtles, are air-breathing reptiles with streamlined bodies and large flippers. They are well-adapted to life in the marine environment. They inhabit tropical and subtropical ocean waters throughout the world. Although sea turtles live most of their lives in the ocean, adult females must return to beaches on land to lay their eggs. They often migrate long distances between feeding grounds and nesting beaches. Seven species have been identified worldwide. Six sea turtle species are found in U.S. waters (the flatback sea turtle is found only in Australia and Papua New Guinea). ( Attribution: Turtles by NOAA Fisheries is in the Public Domain .) 3. See NOAA for all about Sea Turtles 4. You may search NOAA for more information. For example: Green Sea Turtles You may then add your search on this page in “Search NOAA Fisheries” search box. Part II. Now it’s your turn to choose a reptile species from: sea snakes, saltwater crocs, swimming iguanas, and sea turtles. Research one of the species from the many marine reptiles named in your module document, Marine Reptiles . Using a credible source such as a marine biology site (not just Wikipedia), fill in the following information for your choice of reptile. Please list your source(s).

1. Common Name. Loggerhead sea turtle 2. Scientific Classification: Caretta caretta 3. Habitat and distribution: Where is your species located? Loggerhead turtles are found worldwide primarily in subtropical and temperate regions of the Atlantic, Pacific, and Indian Oceans, and in the Mediterranean Sea.Loggerheads can be found hundreds of miles out to sea or in inshore waters —bays, lagoons, salt marshes, creeks, ship channels, and the mouths of large rivers. Coral reefs, rocky places, and ship wrecks draw large amounts of marine life and are great feeding areas. 4. What anatomical or physiological characteristics does your chosen species possess that allow it to survive in the ocean? Loggerheads have salt glands near their eyes, allowing them to drink sea water and excrete the extra salt. Loggerhead turtles have large heads with powerful jaws. The top shell (carapace) is slightly heart-shaped and reddish-brown in adults and sub-adults, while the bottom shell (plastron) is generally a pale yellowish color. 5. Include a picture. 6. Senses and Adaptations: What biological adaptations of the senses does your species have that help it survive? Biological adaptations of the senses: such as sight, smell, hearing, or

navigational abilities (ex. Green sea turtles’ inner ear detects wave changes that assist their sense of direction). One adoption of the loggerhead sea turtle is the modification of its forelimbs into flippers that enable it to swim. Also adapting a beak-like mouthparts has allowed loggerhead sea turtles to survive in our oceans for millions of years by giving these slow swimming reptiles access to abundant, slow moving invertebrates as some of its major prey items. 7. Behavior: Does your species have a particular behavior that helps it survive? Loggerhead sea turtles are solitary creatures that remain submerged for much of the time they are at sea, which makes them extremely difficult to study. They rarely interact with one another outside of courtship and mating. 8. What is the trophic level of your species? Primary consumer What does it eat? Shrimp, fish, conches, horseshoes, jellyfish, crabs. What eats it? Hatchlings are preyed upon by mammals, sea birds, crabs, and carnivorous fishes. Predation continues to be high until the turtles are big enough to avoid being swallowed by large carnivorous fishes such as groupers, snappers, and jacks. 9. Reproduction and Care of Young: Include biological adaptations that allow your species to survive before and right after hatching. The loggerhead sea turtle has a low reproductive rate. After about 2 months incubating in the warm sand, the eggs hatch and the hatchlings make their way to the water. Newly hatched loggerhead turtles are susceptible to predators. They are particularly threatened by artificial beachfront lighting, which can disorient them and prevent them from finding the sea. 10.Include your sources (url of Web site or name of book/magazine) https://tpwd.texas.gov/huntwild/wild/species/logghead/#:~:text=Hatchlings%20are %20preyed%20upon%20by,groupers%2C%20snappers%2C%20and%20jacks . https://srelherp.uga.edu/turtles/carcar.htm#:~:text=While%20fully%2Dgrown %20Loggerheads%20have,and%20fire%20ants%2C%20among%20others . https://www.nationalgeographic.com/animals/reptiles/facts/loggerhead-sea- turtle#:~:text=with%20different%20mates.-,Diet,sometimes%20even%20seaweed %20and%20sargassum

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https://www.fisheries.noaa.gov/species/loggerhead-turtle Copy your answers and post to the Discussion: Marine Reptile Virtual Field Trip. Message me, your instructor, if you have questions or need help with this assignment. (20 points) Have fun! Student outcomes addressed in this assignment: 11. Differentiate the biological adaptations of marine reptiles. 14. Distinguish between the different trophic levels using examples from different marine communities. 15. Describe physiological and anatomical adaptations of marine organisms to the marine environment.

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