The temperatures of nine flowing waters in southern England

Abstract

The authors analyse water temperatures in seven streams and two watercress beds in southern England, and examine some of the biological implications.

The prediction of water temperatures in chalk streams from air temperatures

“…Holmes & Whitton, 198 1;Kowalczewski & Lack, 1971;Mann, 1973;Minshall, 1968Minshall, , 1969Westlake etal., 1972;Woolland & Jones, 1975) perhaps as a general metabolic indicator for the water body since so many biological processes are temperature dependent. Crisp et al (1982) discuss the thermal regimes of some running waters in relation to several important biological processes and cite studies made on the water temperatures of other U.K. rivers. Ward (1985) contrasts thermal conditions in Southern Hemisphere running waters with those in the Northern Hemisphere.…”

Habitat Use by Fishes in Groundwater-Dependent Streams of Southern Oklahoma

“…Groundwater-dependent ecosystems (i.e., springs) are thermally and physically stable environments with little seasonal variation compared to ecosystems with minimal groundwater inputs (Crisp et al, 1982;Sear et al, 1999). While physical habitat may not be the primary factor in determining habitat use within springs, the availability of colder and clearer water provided by springs may be the most important factor in determining the distribution of these species in the southern margins of their range.…”

Atmospheric Conditions, Landscape Characteristics, and Anthropogenic Factors Affecting Stream Water Temperature

“…It exerts significant influence on the ecology of stream organisms through direct impact on their growth rates, spawning sites, incubation durations, and habitat ranges (Crisp et al, 1982;Matthews et al, 1994;Curry et al, 2002;Hari et al, 2006). It also influences other important parameters of water quality such as dissolved oxygen and suspended sediment concentrations, which limit its use for agriculture, industry, and recreation (Webb et al, 2008) .…”

“…Metabolic rates and behavior largely depend on ambient temperature. For example, a higher mean water temperature can increase the growth rate of trout (Crisp et al, 1982). Matthews et al (1994) showed that brown trout avoided warm surface water, preferring to remain within a cool deep layer during the daytime when stream water temperature increased.…”