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<br />Bain, Mark A., editor. 1990. Ecology and Assessment of Warmwater Streams: Workshop
<br />Synopsis. U.S. Fish Wildl. Serv., Biol. Rep. 90(5). 44 pp.
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<br />Natural resource agencies are frequently confronted by applications for actions that could
<br />impact aquatic resources of warm water streams and rivers. To assess impacts and develop
<br />mitigation measures, agency biologists need state-of-the-art knowledge on warmwater stream
<br />ecology and methods for predicting changes. A 1988 workshop reviewed selected topics on
<br />stream ecology and impact assessment. Summaries of 18 presentations by basic and ap-
<br />plied researchers introduce recent information and methods. Research on the ecology of
<br />warmwater streams emphasized four common themes: understanding causes of natural varia-
<br />tion in biological communities, importance of the magnitude and timing of streamflow
<br />changes, relations between early life stages and fish population size, and patterns of stream
<br />habitat use at the community level. Applied research biologists assessing impacts to streams
<br />varied in their approach. One group advocates the use of readily obtainable data and em-
<br />phasizes assessment methods with narrow, specific objectives. Another group advocates
<br />techniques based on communities and streamflow regimes and they believe that stream pro-
<br />tection will not be achieved by focusing on one or a few species and a single standard for
<br />stream protection. Deficiencies in knowledge of stream ecology and inadequacies in available
<br />impact assessment methods indicate that much more basic and applied research will be needed
<br />before warmwater streams can be confidently managed.
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<br />Key words: Stream ecology, impact assessment, habitat requirements, instream flow,
<br />macroinvertebrates, fish communities.
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<br />Bain, Mark A., editor. 1990. Ecology and Assessment of Warmwater Streams: Workshop Synop-
<br />sis. U.S. Fish Wildl. Serv., BioI. Rep. 90(5). 44 pp.
<br />
<br />Natural resource agencies are frequently confronted by applications for actions that could impact aquatic
<br />resources of warmwater streams and rivers. To assess impacts and develop mitigation measures, agency
<br />biologists need state-of-the-art knowledge on warm water stream ecology and methods for predicting
<br />changes. A 1988 workshop reviewed selected topics on stream ecology and impact assessment. Sum-
<br />maries of 18 presentations by basic and applied researchers introduce recent information and methods.
<br />Research on the ecology of warm water streams emphasized four common themes: understanding causes
<br />of natural variation in biological communities, importance of the magnitude and timing of streamflow
<br />changes, relations between early life stages and fish population size, and patterns of stream habitat use
<br />at the community level. Applied research biologists assessing impacts to streams varied in their approach.
<br />One group advocates the use of readily obtainable data and emphasizes assessment methods with nar-
<br />row, specific objectives. Another group advocates techniques based on communities and streamflow
<br />regimes and they believe that stream protection will not be achieved by focusing on one or a few species
<br />and a single standard for stream protection. Deficiencies in knowledge of stream ecology and inadequacies
<br />in available impact assessment methods indicate that much more basic and applied research will be needed
<br />before warmwater streams can be confidently managed.
<br />
<br />Key words: Stream ecology, impact assessment, habitat requirements, in stream flow, macroinverte-
<br />brates, fish communities.
<br />
<br />Bain, Mark A., editor. 1990. Ecology and Assessment of Warm water Streams: Workshop
<br />Synopsis. U.S. Fish Wildl. Serv., Biol. Rep. 90(5). 44 pp. .
<br />
<br />Natural resource agencies are frequently confronted by applications for actions that could
<br />impact aquatic resources of warmwater streams and rivers. To assess impacts and develop
<br />mitigation measures, agency biologists need state-of-the-art knowledge on warmwater stream
<br />ecology and methods for predicting changes. A 1988 workshop reviewed selected topics on
<br />stream ecology and impact assessment. Summaries of 18 presentations by basic and ap-
<br />plied researchers introduce recent information and methods. Research on the ecology of
<br />warmwater streams emphasized four common themes: understanding causes of natural varia-
<br />tion in biological communities, importance of the magnitude and timing of streamflow
<br />changes, relations between early life stages and fish population size, and patterns of stream
<br />habitat use at the community level. Applied research biologists assessing impacts to streams
<br />varied in their approach. One group advocates the use of readily obtainable data and em-
<br />phasizes assessment methods with narrow, specific objectives. Another group advocates
<br />techniques based on communities and streamflow regimes and they believe that stream pro-
<br />tection will not be achieved by focusing on one or a few species and a single standard for
<br />stream protection. Deficiencies in knowledge of stream ecology and inadequacies in available
<br />impact assessment methods indicate that much more basic and applied research will be needed
<br />before warm water streams can be confidently managed.
<br />
<br />Key words: Stream ecology, impact assessment, habitat requirements, instream flow,
<br />macroinvertebrates, fish communities.
<br />
<br />Bain, Mark A., editor. 1990. Ecology and Assessment of Warmwater Streams: Workshop Synop-
<br />sis. U.S. Fish Wildl. Serv., BioI. Rep. 90(5). 44 pp.
<br />
<br />Natural resource agencies are frequently confronted by applications for actions that could impact aquatic
<br />resources of warmwater streams and rivers. To assess impacts and develop mitigation measures, agency
<br />biologists need state-of-the-art knowledge on warmwater stream ecology and methods for predicting
<br />changes. A 1988 workshop reviewed selected topics on stream ecology and impact assessment. Sum-
<br />maries of 18 presentations by basic and applied researchers introduce recent information and methods.
<br />Research on the ecology of warm water streams emphasized four common themes: understanding causes
<br />of natural variation in biological communities, importance of the magnitude and timing of streamflow
<br />changes, relations between early life stages and fish population size, and patterns of stream habitat use
<br />at the community level. Applied research biologists assessing impacts to streams varied in their approach.
<br />One group advocates the use of readily obtainable data and emphasizes assessment methods with nar-
<br />row, specific objectives. Another group advocates techniques based on communities and streamflow
<br />regimes and they believe that stream protection will not be achieved by focusing on one or a few species
<br />and a single standard for stream protection. Deficiencies in knowledge of stream ecology and inadequacies
<br />in available impact assessment methods indicate that much more basic and applied research will be needed
<br />before warmwater streams can be confidently managed.
<br />
<br />Key words: Stream ecology, impact assessment, habitat requirements, instream flow, macroinverte..
<br />brates, fish communities.
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