The Great Lakes have endured a lot the past century, from supersized algae blobs to invasive mussels and bloodsucking sea lamprey that nearly wiped out fish populations.
Now, another danger: They, and other big lakes around the world, might be getting more acidic, which could make them less hospitable for some fish and plants. Credit: AP Photo/John Flesher, File
Many lakes emit more carbon dioxide than they take in, she said. But other scientists say even those could acidify because their outflow will slow as atmospheric concentrations surge.levels is a good idea because the compound is fundamental to processes including photosynthesis that algae and other aquatic plants use to make food, Stanley said.
Studies suggest some of the tiniest phytoplankton may thrive in acidic waters, while larger types—more nutritious for fish—fade. "It's like walking into a buffet and instead of having the salad bar and roast turkey, you have just Skittles," Stauffer said.
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