PPT on a Food Web
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Transcript of PPT on a Food Web
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ENVIRONMENTAL
EDUCATION
PROJECT
Navish AgarwalIX ‘C’
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ANTARCTIC FOOD WEB
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Phytoplankton
Zooplankton
Krill
Squid
Emperor Penguin
Leopard Seal
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Phytoplankton
Zooplankton
Krill
Crab eater Seal
Killer Whale
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Phytoplankton
Zooplankton
Krill
Tooth Fish
Adelie Penguin
Killer Whale
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Phytoplankton
Zooplankton
Krill
Humpback Whale
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Phytoplankton
Zooplankton
Krill
Tooth Fish
Petrel
Leopard Seal
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Leopard Seal
Emperor Penguin
Killer Whale
Adelie Penguin
Tooth Fish SquidCrab
eater Seal Krill
Humpback Whale
PetrelZooplan
ktonPhytopla
nkton
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Disturbances Caused In The Antarctic Ecosystem
Global Warming and climate change in Antarctica has resulted in retreating glaciers, more snowfall. Winter sea-ice has reduced, which acts as a refuge for young krill, providing them both food and shelter.
Adelie penguin population has shrunk during the past 25 years in response to the decline in winter sea-ice habitat.
Researchers say that Antarctica is facing ecological devastation from bacteria on the tourists' boots. Almost 15,00 tourists visit Antarctica every summer. Dangerous bacteria and pathogens are being introduced in the Antarctic environment which can prove to be dangerous for its wildlife.
Phytoplankton form the basic food for krill. It has been proved by research that increased UV radiation as a result of ozone depletion over Antarctica can result 8.5 per cent in phytoplankton production. This will upset the entire Antarctic food web