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Ocean Life: Energy Flow. 10,000 Leagues Under the Sea Biology. Autotrophs. A group of living things that can use the energy in sunlight and convert it into chemical energy (food) Autotrophs are also called producers Without autotrophs, there would be no life on the planet
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Ocean Life:Energy Flow 10,000 Leagues Under the Sea Biology
Autotrophs • A group of living things that can use the energy in sunlight and convert it into chemical energy (food) • Autotrophs are also called producers • Without autotrophs, there would be no life on the planet • Ex. Plants and algae
Autotrophs • Chemotrophs • Autotrophs that get their energy from things like salt • Live in the deep ocean where there is no sunlight • Ex. Bacteria and deep sea worms
Heterotrophs • Organisms that do not make with own food • Also called consumers because they have to consume or eat to get energy • Ex. Sharks, whales, sea otters
Heterotrophs • Consumers • 1) Scavengers – feed on the tissues of dead organisms • Ex. Shrimp, sea cucumbers
Heterotrophs • Consumers • 2) Herbivores- eat ONLY plants • Ex. Krill and Zooplankton
Heterotrophs • Consumers • 3) Carnivores- eat ONLY meat • Ex. Sharks, killer whales, sea lions
Heterotrophs • Consumers • 4) Omnivores- eat BOTH plants and animals • Ex. Humans, blue crabs, dolphins, sea turtles, manatees
Heterotrophs • Consumers • 5) Decomposers- absorb any dead materials and return nutrients to the soil • Ex. bacteria and mushrooms
Transfer of Energy • When one organism eats another, they only get 10% of the energy from their food • Ex. shark eats a fish it only get 10% of the energy that fish had • Most energy is lost as heat
What is a Food Chain? • A food chain is the path by which energy passes from one living thing to another. • Video • Food Chain Song
Types of Food Chains • Aquatic- Water-related food chains with sea plants and animals • Terrestrial- Land-related food chains with land plants and animals
What is a Food Web? • A more realistic way of looking at the relationship of plants and animals in an environment • Several food chains linked together • A predator from one food chain may be linked to the prey of another food chain
sun Marine Food Web plant plankton sea turtle animal plankton jellyfish anchovy tuna Adapted from: http://www.mbayaq.org/lc/teachers_place/resources_seasearchers.asp
Bioluminescence • Bioluminescence is the production and emission of light by a living organism.
Reasons for Bioluminescence • Attract prey (food) • Attract a mate • Scare away predators (things trying to harm them)
Creatures of Light • Video is 50 minutes; first 6 minutes is a good intro clip • Video • Ted Talk deep water organisms • http://ed.ted.com/lessons/deep-ocean-mysteries-and-wonders • Vampire Squid • https://www.youtube.com/watch?v=G4U0vG2bxy0