Crystal Creek Case Rd : Crystal Creek

There is still no evidence of sea lamprey hatching or larvae which makes me assume that the two lampreys seen and captured in the spring did not have a chance or the strength to reproduce, which is a positive thing. This should be observed annually to ensure that sea lamprey are not reproducing further upstream. Potentially ower and upper locations on the creek should be investigated for signs of sea lamprey reproduction such as gravel nests. The water below the sample location is below the rock walled area now an the sand island that existed is now moved and pile don left bank. Because the water is lower, sea lamprey would not have the ability to climb the water way unless the water goes above the wall as it did in the spring. The wall should be observed in future spring freshet to observe if sea lamprey as well as other fish make their way upstream.
There is increased dam on the culvert's edge which has been arranged by a beaver. The sticks have been chewed showing that it is a beaver. The dam is bigger then last week but not but not by that much. Very smart, as it is almost unnoticeable unless you observe closely.

The algae on the rocks has changed form, it is light brownish green and is on the rocks just prior to the culvert, it is shapped like snot but does not seem to resemble didymo, but I can not properly identify, it does not seem to be to me but I could be wrong. There is some brown algae on the rocks and some long stringy pieces on left bank shore where the water level is very shallow, receives high UV and has a good flow from the culvert pulling the water.