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Marine Food Chain
Transcript of Marine Food Chain
Ciliotta Ocean Food Web 1) Find and write out (on the back of your food web) two different food chains from your food web. Make sure your chosen food chains have at least 4 steps. Try to make each of the food chains you select as different as possible. 2) On your two selected food chains, identify the producer, primary consumes, secondary consumes and tertiary consumer. 7) Explain why food webs with many species are more resilient than those with few species. 4) Explain what would happen if all the primary consumers became extinct. Avoid exaggeration. 5) Describe what would happen if all the decomposers became extinct. Avoid exaggeration. 6) Explain what would happen if a non-native species severely depleted the population of producers in your food web. 3) List two top carnivores in your food web. White shark
http://www.hoax-slayer.com/shark-behind-divers.shtml Polar bear
http://animal.discovery.com/mammals/seal/ Sea lion
http://www.fish-journal.com/2011/07/octopus.html Tertiary Consumer Secondary Consumers Sea turtle
http://joyas.org.es/el-coral.html Primary Consumers Decomposers Bacteria
http://deepseanews.com/2011/08/marine-fungi-are-totally-badass/ Sea Worm
http://fitoplanctonmarino.blog.com/fitoplancton-marino/ Producers Diatom
http://reefkeeping.com/issues/2005-05/eb/index.php First food chain:
Primary Consumer: Seal
Secondary Consumer: Sea Turtle
Tertiary Consumer: Orca Second food chain:
Primary Consumer: Dolphin
Secondar Consumer: Krill
Tertiary Consumer: Shark Polar bears are carnivores, they eat:
Arctic Foxes Sea lions are carnivores, they eat:
Hake By: Maira Leon Ciliotta If decomposers became extinct dead plants and animals would not be part of the food web, they would not decompose and that energy would not return to nature to form part of the cycle again. The cycle would be broken and we would e cluttered with dead bodies. If all primary consumers became extinct then the whole food web would fall apart, since there would be too many producers (plants) and no primary consumers to consume them. Also they wouldn't be any secondary or any other consumer, because consumers are unable to produce their own food. Therefore without primary consumers there are no secondary or tertiary consumers, and too many producers. So no animals and all plants or unicellular organism would exist. First Food Chain Second Food Chain It would alter the delicate balance in the ecosystem. Since each organism has a place and a role to play on an ecosystem. It is either a producer, a primary consumer, a secondary consumer, a tertiary consumer, etc. If you bring in a new organism it might, for example, exterminate an organism on which a secondary consumer depends. And that would affect the population of producers that it depends on, and the population of secondary consumers that depend on it. Food webs with many species are more resilient than those with few species, because the species have no options of food, so if one species dies out whereas if it has few species the loss of one has a greater impact on the rest