Spatial comparison of mortality and sublethal toxic effects in embryonic zebrafish exposed to 1% extract concentration from LFTs deployed at distinct river miles (RM) along the lower Willamette River, OR, Spring 2006 (mean ± 95% CI, n=3 groups, total of 941). Asterisks (*, **) represent significant differences. Due to a high incidence of mortality, sublethal effects were not considered for RM 3.5E (indicated by X).