Crayfish lab set up
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Crayfish are freshwater crustaceans related to lobsters that are characterized by a joined head and thorax and segmented body. They typically grow to about 3 inches long and are found worldwide, especially in the US. The lab is set up to measure the oxygen consumption (metabolism) of crayfish using a dissolved oxygen meter in an experimental chamber maintained at a constant temperature by a hot water bath. Large and small crayfish are kept in separate containers to compare their oxygen usage.
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This is a presentation about Sea Turtles. It describes each type of turtle and explains why they are an endangered species. It also includes recent pictures taken of a Sea Turtle release at Vanderbilt Beach in Naples, Florida. The health of thousands of turtles was compromised by the record cold gulf temperatures in Florida in January 2010, causing the Sea Turtles to stop moving and swimming. The Florida State Wildlife Conservation Commission and other many other groups of professionals and volunteers teamed together to warm the turtles, return them to health, then release them back into the wild. This presentation describes ways to help Sea Turtles increase their numbers and provides resources for further study.
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Cetaceans include whales, dolphins, and porpoises. There are two main types - toothed whales called Odontoceti that use their teeth to eat fish and squid, and baleen whales called Mysticeti that filter feed with baleen. Cetaceans vary widely in size from the largest, the blue whale, at 94 feet long, to the dwarf sperm whale at 8.5 feet. They exhibit complex social behaviors in pods, care for their young for over a year, and participate in activities like breaching and lobtailing. Many larger whale species are at risk of extinction due to past commercial whaling.
Whales
Cetaceans include whales, dolphins, and porpoises. There are two main types - toothed whales called Odontoceti that use their teeth to eat fish and squid, and baleen whales called Mysticeti that filter feed with baleen. Cetaceans vary widely in size from the largest, the blue whale, at 94 feet long, to the dwarf sperm whale at 8.5 feet. They exhibit complex social behaviors in pods, care for their young for over a year, and participate in activities like breaching and lobtailing. Many larger whale species are at risk of extinction due to past commercial whaling.
Sea Turtle Understanding the Biology, Habitat, Reproductive Biology and Threa...
Understanding the Biology, Habitat, Reproductive Biology and Threats on Sea Turtle. Behalf of the course of Aquatic mammals, Reptiles and Amphibians. Sea turtles are fascinating marine reptiles known for their longevity, migratory behavior, and importance in maintaining the health of ocean ecosystems.
Seahorse turn in
The Pacific seahorse is about 15 centimeters long with a curled tail used to hook onto objects. Males carry and protect the eggs. Their habitats of coral reefs, sea grass, and mangroves are being rapidly damaged, forcing them to adapt. Seahorses now receive protection from organizations working to safeguard the animals and their habitats from threats like pollution, habitat loss, introduced species, and human activities such as trawling and cyanide fishing.
Seahorse turn in
The document describes several key facts about seahorses:
- Male seahorses carry and incubate eggs in a brood pouch, are slimmer and less spiny than females, and have a curled tail to hook onto objects.
- Seahorses live in shallow tropical and temperate waters along coastlines worldwide and feed on tiny crustaceans and fish by rapidly inhaling water.
- Their habitats of coral reefs, sea grass, and mangroves are threatened by damage and lack of protection, forcing seahorses to adapt. Conservation organizations now work to protect seahorses and their habitats from further damage.
Threat of sea turtle Rajeev raghavan Kufos kerala
Sea turtles, sometimes called marine turtles, are reptiles of the order Testudines and of the suborder Cryptodira. The seven existing species of sea turtles are the green sea turtle, loggerhead sea turtle, Kemp's ridley sea turtle, olive ridley sea turtle, hawksbill sea turtle, flatback sea turtle, and leatherback sea turtle.
Sea turtle, any of seven species of marine turtles belonging to the families Dermochelyidae (leatherback sea turtles) and Cheloniidae (green turtles, flatback sea turtles, loggerhead sea turtles, hawksbills, and ridleys).
Seven different species of sea (or marine) turtles grace our ocean waters, from the shallow seagrass beds of the Indian Ocean, to the colorful reefs of the Coral Triangle, and even the sandy beaches of the Eastern Pacific. WWFs work on sea turtles focuses on five of those species: green, hawksbill, loggerhead, leatherback and olive ridley.
See more on worldwildlife.org
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Sea Turtle Understanding the Biology, Habitat, Reproductive Biology and Threa...
Sea Turtle Understanding the Biology, Habitat, Reproductive Biology and Threa...
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Crayfish lab set up
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- 3. Anatomy of a Crayfish http://www.enchantedlearning.com/cgifs/Crayfish_bw.GIF
- 4. Dissolved O2 meter Experimental chamber Hot water bath Ice bucket
- 5. Tank with large and Small crayfish
- 6. Large crayfish In a holding container
- 7. The label on the tank says it all…