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EnvStats (version 3.0.0)

Helsel.Hirsch.02.Mayfly.df: Paired Counts of Mayfly Nymphs Above and Below Industrial Outfalls

Description

Counts of mayfly nymphs at low flow in 12 small streams. In each stream, counts were recorded above and below industrial outfalls.

Usage

data(Helsel.Hirsch.02.Mayfly.df)

Arguments

Format

A data frame with 24 observations on the following 3 variables.

Mayfly.Count

Number of mayfly nymphs counted

Stream

a factor indicating the stream number

Location

a factor indicating the location of the count (above vs. below)