Understory

A RECREATION Research Report in the IRIS Series.For this paper we start with the 1982-83 NRS. The listing of activities in that earlier survey was much shorter than is found in the current NSRE. As well, some activity definitional changes have occurred, often because of new activities people have taken up, or because of the emergence of components of a former activity grouping as major activities in themselves. A good example of the latter is the activity called “Bird watching and other nature study activities” in the 1982-83 NRS, which now has been split into bird watching, wildlife viewing, ...

Objectives of this exploratory research were: 1) to characterize the contribution of size-specific and total concentrations of organic and inorganic components to the suspended load during high and low flow periods in 4 streams in coastal northern California; and 2) to evaluate relationships between composition and nutritive quality of the suspended loa d with feeding efficiency and condition of salmonid fishes and the abundance of their invertebrate prey. In addition, we conducted laboratory feeding trials to evaluate the effects of suspended sediment concentration, organic: inorganic particl...