Each line consists of the capture history over two samples of Bluegill (Lepomis macrochirus) in Jewett Lake (MI). This file contains the capture histories for only Bluegill larger than 6-in.

Format

A data frame with 277 observations on the following 2 variables.

first

a numeric vector of indicator variables for the first sample (1=captured)

second

a numeric vector of indicator variables for the second sample (1=captured)

Source

From example 8.1 in Schneider, J.C. 1998. Lake fish population estimates by mark-and-recapture methods. Chapter 8 in Schneider, J.C. (ed.) 2000. Manual of fisheries survey methods II: with periodic updates. Michigan Department of Natural Resources, Fisheries Special Report 25, Ann Arbor. [Was (is?) from http://www.michigandnr.com/publications/pdfs/IFR/manual/SMII%20Chapter08.pdf.]

Topic(s)

  • Population Size

  • Abundance

  • Mark-Recapture

  • Capture-Recapture

  • Petersen

  • Capture History

See also

Used in mrClosed examples.

Examples

str(BluegillJL)
#> 'data.frame': 277 obs. of 2 variables: #> $ first : int 1 0 1 0 1 1 1 1 1 1 ... #> $ second: int 0 1 0 1 0 0 0 0 0 0 ...
head(BluegillJL)
#> first second #> 1 1 0 #> 2 0 1 #> 3 1 0 #> 4 0 1 #> 5 1 0 #> 6 1 0