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

Description

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.

Topic(s)

• Population size
• Abundance
• Removal

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.

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,]