The Story Behind A Spooky Photo Of Fish Frozen In Wall Of Ice – Huffington Post

“When thick ice (particularly if it gets covered with snow) forms on a lake’s surface, it blocks out the sun, and the algae/plants don’t photosynthesize and produce oxygen, thus depleting oxygen levels,” Preheim said in a comment that she posted under the photo. “If the aquatic plants and algae subsequently die and decompose, this also uses oxygen, further depleting levels, so the fish essentially suffocate from lack of oxygen.”

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