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Unexplored Diversity: Macroinvertebrates in Coastal British Columbia Headwater Streams (in Proc. Conference Biology & Management of Species and Habitats at Risk) Muchow, Christine L.
1999
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Abstract: At the very tips of most drainage networks are small stream channels, many of which have no flow at times during the summer. These small, zero-order streams contribute a significant portion of cumulative stream length in a watershed, but are largely unexplored and receive little protection under current legislation. We studied the aquatic macroinvertebrate assemblage of 7 small coastal streams with a range of permanence of flow. Three streams have no detectable surface flow for periods in summer (i.e., intermittent flow). We hypothesize that the invertebrate assemblage in these zero-order streams does not completely overlap that of larger streams. Stream sites were sampled using a combination of emergence traps emptied every 14 days throughout the year. In even the smallest streams (<0.5 m bankfull width) with intermittent flow, true aquatic insects with 1-year life cycles were found emerging, even in periods when no flow was perceptible...
 
Muchow, Christine L., Richardson, John S.. 1999. Unexplored Diversity: Macroinvertebrates in Coastal British Columbia Headwater Streams (in Proc. Conference Biology & Management of Species and Habitats at Risk). Ministry of Environment, Lands and Parks; University College of the Cariboo. Proceedings - Conference Biology & Management
 
Topic: Species and Ecosystems at Risk
Keywords: aquatic invertebrate, coastal watershed, intermittent stream, Plecoptera, riparian
ISSN:  Scientific Name: 
ISBN:  English Name: 
Other Identifier: University College of the Cariboo
 
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