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Invasive Silver Carp Negatively Affect Aquatic Food Chain
Wildlife officials are concerned that an invasive species of fish recently caught in the Pearl River below the Ross Barnett Reservoir spillway could negatively affect the aquatic food chain.

Mississippi Department of Wildlife Fisheries and Parks biologists confirmed the silver carp catch, The Clarion-Ledger reported. According to biologists, the fish, also called flying carp because of their high-flying antics when frightened, can cause greater problems.

"That's the impact people realize, but they don't realize the impact on the food chain," MDWFP Fisheries Bureau biologist Dennis Riecke said.

Riecke said the silver carp feed on phytoplankton, which are at the base of the food chain. This can produce a significant ripple factor if the silver carp become abundant, because by reducing the amount of phytoplankton, the carp reduce the food source for native baitfish and other fry species.


 
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Food Chain Manipulation Improves Lakes - Research has shown that changes in the food chain of an ecosystem like lakes can be manipulated and improved by making changes in key parts of the food chain. The moments in time where a change happens is called a “regime shift”. On a grander scale, this knowledge could be used on other ecosystems such as forests, grasslands, and deserts.


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