Table 5. Aboriginal concerns relating to human pressures on brook charr in Mistassini Lake, according to local experts. Asterisks denote where community fishers and/or fishing guides made similar comments. Geographic location Informant Observation or concern Trend Timeline of observation Outflow 2, 3* Fishing efficiency Declining Past 40 yr 3, 4 Numbers of charr observed on breeding grounds Declining Past 40 yr 1, 3 Fishing efficiency since opening of a fishing camp Declining Past 35 yr 5 Fishing efficiency; no major environmental changes Same Past 40 yr Inflows 20 Fishing efficiency in Cheno Same 5–30 yr ago 13 Fishing efficiency in Cheno Declining 5–30 yr ago 11 No major environmental changes in Takwa Same Past 35 yr 12* Fishing efficiency in Takwa Declined 25–30 yr ago 7 Charr arriving later in the fall in Pepeshquasati Environmental change Past 35 yr Lake 14, 18–20* Numbers of charr found in schools along the island chain Declining Past 30 yr 14, 15, 17–20* Fishing efficiency in various lake sectors Declining Past 25 yr 3, 14* Fishing efficiency near the community Declining Past 40 yr 4–6* Rapid access of all lake sectors with large boats Increasing fishing pressure Past 30 yr 8* Numbers of boats with large horsepower boats and their noise Increasing fishing pressure Past 10 yr 5 Increased number of boats no major threat to charr Same fishing pressure Past 10–20 yr 3, 8, 16, 19* Size of captured charr Declining Past 30 yr 8 Size of captured charr Same Past 10 yr 5 Size of captured charr Same Past 10–20 yr