Channel Unit Use by Smallmouth Bass: Do Land-Use Constraints or Quantity of Habitat Matter?

摘要: Abstract I examined how land use influenced the distribution of Smallmouth Bass Micropterus dolomieu in channel units (discrete morphological features—e.g., pools) streams Midwestern USA. Stream segments (n = 36), from four clusters different soil and runoff conditions, were identified that had highest percent forest 12), pasture urban 12) within each cluster. Channel stream delineated independently sampled once using multiple gears summer 2006. Data analyzed a generalized linear mixed model procedure with binomial odds ratio statistics. Land unit strong predictors age-0, age-1, age->1 presence. Each age-class was more likely to be present watersheds dominated by than those or uses. The interaction between not significant any models, indicating channel...