Researchers try to determine what killed fish

SAVANNAH - State researchers are trying to determine what killed hundreds of fish and crabs in Chatham County. <br> <br> The dead and dying fish and crabs have washed up on the Little Ogeechee River bank in the southern part of the county. <br> <br> A state biologist told WSAT-TV that low levels of dissolved oxygen in the water probably are to blame.

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