The Stream Doctor

August 18th, 2003

Email YOUR Questions directly to the Stream Doctor. This is your opportunity to get an experts professional opinion on anything stream related.


Q. From Ccdg1962: In the emergence stage of a mayfly, where in the water as it rises does it release its shuk? Middle, or more at the surface? Or do they tend to all be at different levels? Thank you.

A. Mayflies emerge from the shuk (exuviae) at the surface of the water. The newly hatched adult, called a sub-imago, could not survive if it emerged while still in the water column; it would be unable to inflate its wings and would likely end up in the drift as a morsel of food.
~ C. E. (Bert) Cushing, aka Streamdoctor
105 W. Cherokee Dr.
Estes Park, CO 80517
Phone: 970-577-1584
Email: streamdoctor@aol.com

The 'Stream Doctor' is a retired professional stream ecologist and author, now living in the West and spending way too much time fly-fishing. You are invited to submit questions relating to anything stream related directly to him for use in this Q & A Feature at streamdoctor@aol.com.


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