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Wednesday, September 23, 2009

What's That Mossy-Looking Stuff in the Lake?

For anyone who observed somewhat billowy green clouds in water on the south shelf of Cayuga between Sept. 13 and 20. Our sources Cornell's Lab of Evolutionary Biology & Ecology tell us it was likely a filamentous green algae called Mougeotia. Over the course of the week, it settled out of the open water and literally covered the bottom of the lake along the west shore in particular. Kind of looked like an aquatic version of spanish moss hanging from the larger plants.



<- blanketing larger plants...


...as seen up-close ->


According to researcher Colleen Kearns, "Filamentous blooms, along with fall blooming diatoms, are part of seasonal algal succession-right on cue for this time of year." Our understanding is that this bloom will dissappear over the coming week; we'll be looking for it this coming Sunday!

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