Natural phenomenon kills thousands of fish in Vermilion Lakes near Banff yyc
Last weekend, Parks Canada officials were contacted by someone alarmed by the number of dead fish at the surface or under the ice at the lakes — especially the second Vermilion Lake. The dead white suckers and brook stickleback fish can be seen piled up in the few open areas of the frozen lakes and are visible from the shorelines.Sign up to receive daily headline news from the Calgary SUN, a division of Postmedia Network Inc.
When a cold snap causes an extra thick layer of ice and the ice is covered in snow, the sunlight can’t reach the water and the plants and algae in the water stop producing oxygen, explained Taylor. As a result, the oxygen level in the water plummets.Article content This mass death of fish isn’t concerning for the long-term health of fish populations in the park, he said during an interview on Thursday. The fish will decompose and release nutrients back into the ecosystem which will fuel the growth of plants and fish next year.
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