Single strata (midday weekend) boat counts as conducted by the Small Lakes Index Management (SLIM) programs were compared to estimates of angler effort from intensive angler activity surveys on 19 British Columbia lakes. Angler activity in total boat hours was estimated as 1286 times the simulated SLIM boat count (R2 = 0.97; CV = 30.6). Shore angler activity (hours) was estimated as 644 times the simulated SLIM shore angler count (R2=0.59; CV=88.2). Boat angler hours was estimated by multiplying boat hours by the average number of anglers per boat, and angler days by dividing angler hours by the number of hours per angler day. Large CV values reflect a high degree of variability in the data resulting in large differences between actual and predicted effort estimates, demonstrating the need for flexible interpretation of predictions. Interpretation of the estimates to account for known variations in effort distribution over the day and between daytypes and angling season length are discussed.
Tredger, C.D.. 1992. Estimation of Angler Effort Using Index Boat Counts. Ministry of Environment, Lands and Parks. Fisheries Technical Circular. FTC94
Topic: Fish and Fish Habitats
Keywords: angler effort, angling
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