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Category Code Description Source Reference Active Alias
COLLECTION COMP-CV-QTRPT Composite water sample, constant volume. Samples of equal volume are taken at quarter points of the river cross-section and composited. Y
COLLECTION VANVEEN.20 Grab sampler, Van Veen, 0.20 m2 Y
MEASUREMENT BIOHabitatMetric025 Ratio of Hydropsychidae/Trichoptera within the sample, represents the relative abundance of pollution tolerant caddisflies. Y
Preparation DRIEDTISSUE Tissue dried prior to analysis. Y
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