Researchers hatch theory that mayflies add to Lake Erie algae woes

[GLF]

ELYRIA, Ohio — Despite the annoyance that mayflies pose each June when they swarm across the region, Ohioans have generally held the broad-winged insects in high esteem because of what they have symbolized: Lake Erie’s recovery.

Now, a decade after pollution dissipated enough for mayflies to make their comeback, some researchers believe they could be hurting the lake by helping algae grow.

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