Tuesday, 29 July 2008 16:43

New Zealand Mud Snail and Insect Assessment

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New Zealand Mud Snail (NZMS) & Insect Assessment on the Middle Fork of the American River, June 28th. Ken Davis, aquatic biologist & wildlife photojournalist, explained the problems created by the NZMS and gave us an overview of how the assessment would be conducted.

We did not find any NZMS during our assessment but we did notice a great difference in the quantity and diversity of insects found in different segments of the survey area, impressing upon us the interrelationship between habitat and fish populations. Following is some information we all need to know about NZMS: (1) they are very tiny and feel like grains of sharp sand, (2) within 10 seconds they can become hidden in the seams of your boots and waders, (3) they are very prolific and eat the same food fish eat thereby depleting the food available for the fish, (4) they need moisture to survive so sun dry your clothing & gear thoroughly before entering another stream or lake.


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