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Why is the Water Green?

Posted: Thu Jul 30, 2009 1:21 pm
by Stan Wright
Seems that some of the state biologists saw some of the pictures of the lake we posted and did some water sampling. (Now aren't you guys glad you posted your pictures?)

And may I have the envelope please?
The predominant phytoplankton appeared to be a Ulothrix species. Ulothrix sp. is a green filamentous algae with certain species appearing bright green (see the photo ). It may form clumps on rocks along the shoreline and/or attach to submerged wood. Among the other types of phytoplankton observed were Cosmarium, Treubaria sp. and Fragilaria sp.

Levels were not at a density to worry about. In other words, the fish should not be affected.

Many thanks to you who did the water testing, we all appreciate it.
Aloha,
Stan

Dad, don't you think the yellow goes good with the green of the water?
Image

Posted: Thu Jul 30, 2009 8:49 pm
by BASSTRACKER
havent been out since the water level rose but, recently read an intresting article.was about the oxygen levels in lakes going up and down with the level of plankton and algae.when the sun comes up the plankton and algae that creat disolved oxygen bloom and give greater levels in the water, during low light they die off burning off oxygen as they decompose. fish become more active as the sun gets higher in waters with high amounts of these oxygens and planktons. thinking back to my last few trips seems i didnt really start having any luck till at least 10 am or later.intresting but not always the case of early bird catching the worm.

Posted: Fri Jul 31, 2009 7:18 am
by roadwarriorsvt
I wonder what caused this inclrease? And only now? Time of the year? If it gets more concentrated, I wonder how that will affect the lake? At least the lake is a pretty color! :lol: