Gabelhouse five-cell length categories for various species.

Cutoffs for the Gabelhouse five-cell length categories for a variety of species.

Format

A data frame of 58 observations on the following 11 variables:

species

Species name.

group

Sub-group name (e.g., "landlocked" or "lotic").

substock.in

Zero inches.

stock.in

Stock length in inches.

quality.in

Quality length in inches.

preferred.in

Preferred length in inches.

memorable.in

Memorable length in inches.

trophy.in

Trophy length in inches.

substock.cm

Zero cm.

stock.cm

Stock length in cm.

quality.cm

Quality length in cm.

preferred.cm

Preferred length in cm.

memorable.cm

Memorable length in cm.

trophy.cm

Trophy length in cm.

source

Literature source for the length entries.

Source

Original summary table from Dr. Michael Hansen, University of Wisconsin-Stevens Point. Additional species have been added by the package author from the literature.

Topic(s)

• Size structure

• Proportional size structure

• Relative stock density

• Proportional stock density

IFAR Chapter

6-Size Structure.

References

Ogle, D.H. 2016. Introductory Fisheries Analyses with R. Chapman & Hall/CRC, Boca Raton, FL.

See also

See psdVal, psdCalc, psdPlot, psdAdd, and tictactoe for related functionality.

Examples

str(PSDlit)
#> 'data.frame':	72 obs. of  15 variables:
#>  $ species     : chr  "Arctic Grayling" "Bighead Carp" "Bigmouth Buffalo" "Black Bullhead" ...
#>  $ group       : chr  NA NA NA NA ...
#>  $ substock.in : int  0 0 0 0 0 0 0 0 0 0 ...
#>  $ stock.in    : num  8 11.8 11 6 15.8 ...
#>  $ quality.in  : num  12 21.2 18 9 28.2 ...
#>  $ preferred.in: num  16 26.8 24 12 35.5 ...
#>  $ memorable.in: num  20 35 30 15 46.5 12 35 10 20 NA ...
#>  $ trophy.in   : num  22 43.8 37 18 58.2 ...
#>  $ substock.cm : int  0 0 0 0 0 0 0 0 0 0 ...
#>  $ stock.cm    : num  20 30 28 15 40 13 30 8 20 20 ...
#>  $ quality.cm  : int  30 54 46 23 72 20 51 15 30 33 ...
#>  $ preferred.cm: int  40 68 61 30 90 25 76 20 40 NA ...
#>  $ memorable.cm: int  50 89 76 39 118 30 89 25 50 NA ...
#>  $ trophy.cm   : num  55 111 94 46 148 38 114 30 60 NA ...
#>  $ source      : chr  "Hyatt (2000)" "Phelps and Willis (2013)" "Bister et al. (2000)" "Gabelhouse (1984a)" ...
head(PSDlit)
#>            species group substock.in stock.in quality.in preferred.in
#> 1  Arctic Grayling  <NA>           0     8.00      12.00        16.00
#> 2     Bighead Carp  <NA>           0    11.75      21.25        26.75
#> 3 Bigmouth Buffalo  <NA>           0    11.00      18.00        24.00
#> 4   Black Bullhead  <NA>           0     6.00       9.00        12.00
#> 5       Black Carp  <NA>           0    15.75      28.25        35.50
#> 6    Black Crappie  <NA>           0     5.00       8.00        10.00
#>   memorable.in trophy.in substock.cm stock.cm quality.cm preferred.cm
#> 1         20.0     22.00           0       20         30           40
#> 2         35.0     43.75           0       30         54           68
#> 3         30.0     37.00           0       28         46           61
#> 4         15.0     18.00           0       15         23           30
#> 5         46.5     58.25           0       40         72           90
#> 6         12.0     15.00           0       13         20           25
#>   memorable.cm trophy.cm                   source
#> 1           50        55             Hyatt (2000)
#> 2           89       111 Phelps and Willis (2013)
#> 3           76        94     Bister et al. (2000)
#> 4           39        46       Gabelhouse (1984a)
#> 5          118       148 Phelps and Willis (2013)
#> 6           30        38       Gabelhouse (1984a)