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Protocols

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7 protocols

analytical

Persulfate phosphorus digestion

Standard colorimetric method for measuring soluble reactive phosphorus and total dissolved phosphorus in water samples using spectrophotometry. Total dissolved phosphorus samples are first digested wi...

chemical analysis7 paperspressure cooker, K2S2O8...
analyticalstandardized

COI DNA barcoding (Baetidae)

DNA extraction using modified Chelex protocols followed by PCR amplification and sequencing of the mitochondrial cytochrome oxidase I gene to assess genetic variation within and among mayfly populatio...

molecular2 papersEppendorf tubes, chelex solution...
analyticalstandardized

Global literature survey of Didymosphenia geminata blooms

Systematic search and compilation of published records of D. geminata blooms with associated soluble reactive phosphorus measurements to characterize global patterns.

meta-analysis2 papersWeb of Science database, Google Scholar
analytical

Ivlev's Electivity Index

Modified gut content analysis method that estimates feeding intensity by counting the proportion of abdominal segments containing food rather than identifying specific prey items.

dietary analysis2 papersdissecting equipment
analyticalstandardized

MAGIC method

Magnesium hydroxide co-precipitation method using Sargasso Sea water to concentrate low-level soluble reactive phosphorus samples 70-fold prior to colorimetric analysis.

water chemistry2 papersSargasso Sea water, magnesium hydroxide
analyticalstandardized

cellulose acetate electrophoresis (Baetidae)

Cellulose acetate electrophoresis to analyze genetic variation at enzyme loci in mayfly populations, involving initial enzyme screening, locus selection, and final allele frequency determination acros...

molecular2 papersHelena Laboratories Titan III plates, cellulose acetate electrophoresis system...
analytical

probabilistic species co-occurrence model (Rhyacophilidae)

Statistical analysis comparing observed vs. expected species co-occurrence patterns using probabilistic models to identify positive, negative, or random associations between species pairs.

community ecology statistics2 papersR software