Lengths and weights for Pallid Sturgeon from four locations in the Missouri River.
Source:R/Pallid.R
Pallid.RdLengths (standard, fork, and total) and weights for Pallid Sturgion (Scaphirhynchus albus) collected at four locations in the Missouri River drainage.
Format
A data frame with 30 observations on the following 7 variables:
- date
Date of collection
- sl
Standard length (mm)
- fl
Fork length (mm)
- tl
Total length (mm)
- w
Weight (g)
- status
Living status of fish at time of collection (
Frozen,Live,Dead).- loc
Location of fish collection (
NB=Nebraska,SD=South Dakota,ND=North Dakota,MT=Montana)
Source
From Table 1 in Keenlyne, K.D. and S.J. Maxwell. 1993. Length conversions and length-weight relations for pallid sturgeon. North American Journal of Fisheries Management 13:395-397. CSV file
Examples
data(Pallid)
str(Pallid)
#> 'data.frame': 30 obs. of 7 variables:
#> $ date : Factor w/ 25 levels "10-Feb-90","10-Mar-89",..: 24 21 7 16 20 20 19 12 8 19 ...
#> $ sl : int 807 875 930 1036 743 829 902 1067 1211 1283 ...
#> $ fl : int 864 897 990 1096 794 893 940 1130 1274 1384 ...
#> $ tl : int 959 950 1080 1180 902 965 1016 1219 1406 1482 ...
#> $ w : int 2239 2948 3402 6500 1941 2835 3266 4990 12247 9979 ...
#> $ status: Factor w/ 3 levels "Dead","Frozen",..: 2 3 3 2 3 3 3 3 3 3 ...
#> $ loc : Factor w/ 4 levels "MT","NB","ND",..: 2 2 2 2 4 4 4 4 4 4 ...
head(Pallid)
#> date sl fl tl w status loc
#> 1 4-Apr-88 807 864 959 2239 Frozen NB
#> 2 29-May-84 875 897 950 2948 Live NB
#> 3 15-May-90 930 990 1080 3402 Live NB
#> 4 21-May-87 1036 1096 1180 6500 Frozen NB
#> 5 28-Jun-89 743 794 902 1941 Live SD
#> 6 28-Jun-89 829 893 965 2835 Live SD
op <- par(mfrow=c(2,2),pch=19)
## four (of many possible) examples
plot(w~tl,data=Pallid,subset=loc=="NB",main="Nebraska")
plot(w~tl,data=Pallid,subset=loc=="SD",main="South Dakota")
plot(w~tl,data=Pallid,subset=loc=="ND",main="North Dakota")
plot(w~tl,data=Pallid,subset=loc=="MT",main="Montana")
par(op)