Update on golden algae situation at Salt River lakes
AZGFD personnel have been taking water quality samples twice a month on Saguaro, Canyon and Apache Lakes to monitor golden algae densities. Since the first reports of a fish kill in March, water quality samples have indicated a decrease in golden algae densities in all of the lake samples. Blue green algae has become the dominant species, with many samples containing less than 1% golden algae.
From what biologists are seeing, it appears the fish kills are over. Throughout the last two months it appeared a majority of the fish killed were threadfin shad, with a handful of other species including largemouth bass. As of right now, the outlook is good for Saguaro, Canyon and Apache lakes with minimal effects to the largemouth bass population. Fish surveys will be conducted in spring 2023 to evaluate the largemouth bass populations.
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