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The ecosystem impacts of cyanobacterial blooms: a pan-GLEON sampling and analysis program Cayelan Carey 1 1 Cornell University, Ithaca, NY USA Photo: Louise.

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Presentation on theme: "The ecosystem impacts of cyanobacterial blooms: a pan-GLEON sampling and analysis program Cayelan Carey 1 1 Cornell University, Ithaca, NY USA Photo: Louise."— Presentation transcript:

1 The ecosystem impacts of cyanobacterial blooms: a pan-GLEON sampling and analysis program Cayelan Carey 1 1 Cornell University, Ithaca, NY USA Photo: Louise Miles

2 What happens to a lake ecosystem during a cyanobacterial bloom? Toxins, scums, odors all well documented But, what about lake biogeochemical cycles (C, N, P)? Phytoplankton, zooplankton dynamics? Cyanobacterial blooms significantly impact many ecosystem variables

3 Expanding my analysis to the GLEON network Survey indicates that ~55% of GLEON lakes consistently exhibit blooms every year Range of trophic status and cyanobacterial species represented

4 Soliciting historical & limnological data from GLEON (and non-GLEON) lakes I am collecting: 1.Historical weekly datasets 2.Weekly plankton samples If you can take a weekly plankton sample at your GLEON lake, I will count and ID the phytos for you. I will acknowledge you and your site on any publications that result from this project.

5 Lake/data requirements Lake must experience at least one bloom/summer. Plankton sample must be collected weekly throughout bloom season using a standardized sampling protocol. After bloom season ends, we will identify when bloom events occurred, and you will mail me the samples. I will count the phytos and send you the data.

6 Why this is a cool thing Cyanobacterial blooms are increasing every year in geographical range and frequency; there is much we do not know One of the first attempts to utilize the GLEON network to conduct large-scale, collaborative biology; perhaps a model for future GLEON research?

7 Interested in participating? Talk to me this week, come see my poster, or me at:


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