National Geographic Society

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Hooked: Carp Invasion

Biologists use an electro-fishing boat to stun fish with 5000 watts. It allows them to study the fish and release them unharmed. The Asian Carp have a defensive mechanism of jumping in the air and can jump up to ten feet in the air. People using the rivers have to be careful to not be hit with the jumping fish, which can reach as long as five feet and weight as much as one hundred pounds.
Asian carp are infiltrating major American waterways; with insatiable appetites they have the power to destroy an entire ecosystem by depleting a native food chain from the bottom up.