North American Journal of Fisheries Management · 1988 · 38 citations · 8 references
Natural ResourcesEcologyFisheriesFisheries BiologyFisheries ManagementFisheries StatisticsAbundance EstimationBycatch StatisticsFish Population AssessmentFishery Data CollectionLake FisheriesSampling DesignEffective Sample SizeFish Abundance EstimationFish Sampling TechniquesFishery SurveysLake Fish Catch StatisticsSample Size CalculationSample Size Reduction
The purpose of this paper is to determine sample sizes needed to use t-tests to detect changes in indices of angling effort, catch per unit effort (CPUE), fish length, fish growth, and fish age. The results are presented in graphs of sample size versus detectable change for data from small trout lakes in southern British Columbia. Sample size requirements are most difficult to meet for indices of CPUE, effort, and age, but the cost of data acquisition appears reasonable even for small lakes with less than 1,000 angler-days/year. Alternative choices for significance levels (0.01–0.20) and power (0.80–0.95) result in almost a six-fold variation in sample size requirements.
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Adaptive Management of Renewable Resources.
Amy Rutherford, Caroline E. Walters · Biometrics · 1987 · 3.3K citations · Full text
The Significance Test Controversy.
Lewis F. Carter, Denton E. Morrison, Ramon E. Henkel · Social Forces · 1971 · 445 citations