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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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Antarctica Braces for Influx of Invasive Species - Antarctica and the Southern Ocean may seem very far away from civilization, but they are at great risk of losing their unique qualities due to human activities. Warmer temperatures and human visitation are increasing the likelihood that invasive species can take up residence in the Antarctic, and potentially cause major changes.


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