GreensCreekMine: Catches in removal events of Coho Salmon and Dolly Varden Char at various locations near the Greens Creek (AK) Mine site.
Description
Catches in removal events of Coho Salmon (Oncorhynchus kisutch) and Dolly Varden Char (Salvelinus malma) at various locations near the Greens Creek (AK) Mine site.
Arguments
Format
A data frame of 66 observations on the following 8 variables:
location
Sampling location.
year
Sampling year.
species
Species (Coho.Salmon or Dolly.Varden).
set1
Catch on the first removal pass.
set2
Catch on the second removal pass.
set3
Catch on the third removal pass.
min.FL
Minimum observed fork length.
max.FL
Maximum observed fork length.
Topic(s)
Population size
Abundance
Removal
Details
Reaches were isolated by natural features, such as shallow riffles. The sample reaches were saturated with 6.35 mm (0.25 in) minnow traps baited with whirl packs containing disinfected salmon eggs.The traps were deployed for 1.5 h and then retrieved where each fish was transferred into a plastic bucket, and the trap was re-baited ans re-set for another 1.5 h soak. In between trapping events, fish were processed -- measured and recorded FL to the nearest 1 mm, weight to the nearest 0.1 g, and species identified. Captured fish were retained during the sample period and returned alive after all three passes were complete.
data(GreensCreekMine)
str(GreensCreekMine)
head(GreensCreekMine)
## extract data for one location, year, and species (e.g., 3rd row)GreensCreekMine[3,]