Maryland Department of Natural Resources Fisheries Service biologists today will apply potassium permanganate to the Crofton pond to neutralize the rotenone applied earlier this month to eradicate the Northern snakehead fish.
More than 1,000 dead juvenile and six adult Northern Snakeheads were recovered; the application of rotenone was successful and has killed all the fish in the pond.
The rotenone was expected to decompose quickly with warm water temperatures; however the recent rain and cloud cover have lowered the temperature and is slowing decomposition.
Application will begin at 9 a.m., and end around 11 a.m. and is expected to return water quality levels to normal.
For more information about the northern snakehead fish, click on http://www.dnr.state.md.us/fisheries/snakeheadinfosheet.html
