Catch and effort data for Fantail Darter.

Catch and effort data for Fantail Darter (Etheostoma flabellare) from seven removal events conducted by Mahon (1980).

Format

A data frame with 7 observations on the following 2 variables.

catch: Catch of Fantail Darter.
effort: Constant electrofishing effort.

Source

From Mahon, R. 1980. Accuracy of catch-effort methods for estimating fish density and biomass in streams. Environmental Biology of Fishes. 4:343-363. CSV file

Details

Catch (number of fish) was recorded. Effort was a constant amount of electrofishing for each sampling event and is, thus, entered as a constant value of 1.

These data are used in many publications because the stream section was rotenoned following the removal surveys to determine a known population size of 1151 individuals.

Topic(s)

Population size
Abundance
Depletion methods
Leslie method
DeLury method
Catchability

Examples

data(DarterMahon)
str(DarterMahon)
#> 'data.frame':	7 obs. of  2 variables:
#>  $ catch : int  180 115 94 84 75 58 60
#>  $ effort: int  1 1 1 1 1 1 1
head(DarterMahon)
#>   catch effort
#> 1   180      1
#> 2   115      1
#> 3    94      1
#> 4    84      1
#> 5    75      1
#> 6    58      1