Highland Lakes

Country Club and Community Association

Report on Recent Fish Kill Received

Allied Biological has received a report from the lab of the New Jersey Division of Fish & Wildlife that indicated a common bacteria known as Aeromonas hydrophila was the cause of the recent fish kill in the Main Lake and Lake 5 in mid-May. The bacteria is normally present in surface waters and in fish and is a common cause of fish kills in the spring. When the fish become stressed, the bacteria can take over, leading to the mortality of the fish. It becomes a serious problem for some fish when they experience high stress due to a variety of reasons including sudden changes in water temperature, poor water quality (especially low dissolved oxygen), spawning activity, etc. Water sampling at the time of the fish kill by Allied Biological and Princeton Hydro ruled out poor water quality and low dissolved oxygen as contributing factors.

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