what kind of DO requirements do walleye have?
From:
https://www.nwrc.usgs.gov/wdb/pub/hsi/hsi-056.pdfHABITAT SUITABILITY INFORMATION:
WALLEYE
Adult walleye can tolerate dissolved oxygen (DO) levels of 2 mg/l for a short time (Scherer 1971), but the greatest abundance of walleye occurs where minimum DO levels are greater than 3 to 5 mg/l (Dendy 1948). DO levels of < 1 mg/l are lethal (Scherer 1971).