# Catches in removal events for Brook Trout in the Nashwaak Experimental Watersheds Project.

Source:`R/BrookTroutNEWP1.R`

`BrookTroutNEWP1.Rd`

Catches in removal events for Brook Trout (*Salvelinus fontinalis*) in two streams in the the Nashwaak Experimental Watersheds Project on multiple dates. Includes results from Schnute (1983).

## Format

A data frame of 16 observations on the following 7 variables:

- sample
A unique identified for the sample.

- stream
Stream (

`UNM`

=Upper Narrows Mountain Brook and`Hay`

=Hyaden Brook).- section
Section of stream. See source.

- date
Data of collections.

- first
Catch on the first removal pass.

- second
Catch on the second removal pass.

- third
Catch on the third removal pass.

- fourth
Catch on the fourth removal pass.

- Moran.N
Schnute (1983) estimate of N using the Moran (1951) method.

- Moran.NLCI
Schnute (1983) estimate of N 95% LCI using the Moran (1951) method.

- Moran.NUCI
Schnute (1983) estimate of N 95% UCI using the Moran (1951) method.

- Moran.p
Schnute (1983) estimate of p using the Moran (1951) method.

- Moran.LH
Schnute (1983) negative log likelihood using the Moran (1951) method.

- Schnute.N
Schnute (1983) estimate of N.

- Schnute.NLCI
Schnute (1983) estimate of N 95% LCI.

- Schnute.NUCI
Schnute (1983) estimate of N 95% UCI.

- Schnute.p1
Schnute (1983) estimate of p1.

- Schnute.p
Schnute (1983) estimate of p.

- Schnute.LH
Schnute (1983) negative log-likelihood.

- ChiSq
Schnute (1983) chi-square from likelihood ratio comparison of Moran and Schnute methods.

## Source

From Tables 1-3 in Schnute, J. 1983. A new approach to estimating populations by the removal method. Canadian Journal of Fisheries and Aquatic Sciences, 40:2153-2169. CSV file

## See also

See `BrookTroutNEWP`

for only the data (note the results from Schnute (1983)).

## Examples

```
data(BrookTroutNEWP1)
## extract data for one stream, section, and date (e.g., 3rd row)
BrookTroutNEWP1[3,]
#> sample stream section date first second third fourth Moran.N Moran.NLCI
#> 3 3 UNM 4 Jul-74 48 10 6 6 71.1 70
#> Moran.NUCI Moran.p Moran.LH Schnute.N Schnute.NLCI Schnute.NUCI Schnute.p1
#> 3 76.3 0.61 4.71 78.3 70 Inf 0.61
#> Schnute.p Schnute.LH ChiSq
#> 3 0.34 2.22 4.98
```