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Number of white sucker from the St. Louis area of concern below Fond du Lac Dam with raised skin lesions and neoplasms based on four age groupings
| Age range | Total | Raised lesions | Skin neoplasms | Liver neoplasms |
|---|---|---|---|---|
| 3–6 | 40 | 8 | 1 | 3 |
| 7–8 | 44 | 13 | 1 | 1 |
| 9–10 | 31 | 9 | 3 | 0 |
| 11+ | 32 | 12 | 3 | 2 |
This includes Superior Bay (site C), St. Louis Bay (site AB) and the upper estuary (site D)
