“…He further maintained that 'No event in the late 1800's in the Lake Erie basin could account for the tremendous increase in productivity as indicated by the quantitative profiles'. Schelske et al (1983) presented a model, based partially on earlier experimental work on Lake Michigan (Schelske & Stoermer, 1971, which rationalized Parker & Edgington's (1976) and Frederick's (1981) quantitative observations. Subsequent quantitative studies of diatoms in Great Lakes cores (Stoermer et al, 1985a(Stoermer et al, , b, c, 1987(Stoermer et al, , 1990a(Stoermer et al, , 1991Wolin etal., 1988Wolin etal., , 1991, in my opinion, conform to this model.…”