The document summarizes a study assessing the potential reproductive effects of pulp mill effluent on wild fish populations near Areas of Concern in Canada. The study examined fish from the Jackfish Bay AOC, where previous research identified reproductive impacts in white sucker from exposure to bleached kraft mill discharge. The current study assessed gonad development, hormone levels, histology, and other endpoints in fish using a standardized approach to determine if similar effects are present at other AOCs. Initial results from reexamining white sucker at Jackfish Bay found reduced ovary and testes size, delayed sexual maturity, altered hormone levels, and other reproductive issues consistent with prior studies.