Aquatic biota in North America
This chapter consists of two sections that represent complementary approaches to the description of the distribution of aquatic biota on the North American continent. The first section, by Patrick, deals with aquatic life in rivers in the United States and emphasizes the geologic, hydrologic, and hydraulic characteristics that affect the spatial distribution of the biota. These principles, as indicated in the section by Williams, also relate to distribution throughout the North American continent. The geographic distribution itself is elucidated in the text and is organized around the factors influencing that distribution.
The second section, on the distribution of biota in Canadian and other North American waters, describes the spatial or geographic distribution of major aquatic biota in the river systems of Canada. It includes maps depicting the geographic distribution throughout the North American continent of selected species of fish, indicative of the wide range of spatial characteristics of these distributions. Together the two sections emphasize both the geographic distribution throughout the North American continent of selected species of fish, indicative of the wide range of spatial characteristics of these distributions, and the factors influencing those distributions throughout the continent.
Figures & Tables
Provides reviews of all major facets of hydrology. Topics covered include: influences of the atmosphere and of land and vegetation on stream flow; temporal and spatial variability of stream flow, with separate chapters on floods and on low flow and hydrologic drought; snow and ice, the frozen components of the hydrosphere; the hydrology of lakes and wetlands; hydrogeochemistry of rivers and lakes; the aquatic biota; sediment movement and storage; the riverscape for selected North American rivers; and the influence of Man on hydrologic systems. Accompanying color plates show histograms of river water chemistry, runoff and flow regimes, and the distribution of precipitation minus evaporation for North America.