Lengths, weights, and sex for Cisco (Coregonus artedii) from Trout Lake, WI, 1981-2006. Fish were collected with a variety of gears.
Format
A data frame of 8594 observations on the following 8 variables:
- lakeid
Lake name (all
TR=Trout Lake)- year4
Year of capture
- sampledate
Date of capture
- gearid
Capture gear type
- spname
Species name (all
CISCO)- length
Total length (nearest mm) at capture
- weight
Weight (nearest 0.1 or 1 g) at capture
- sex
Sex (
F=Female,I=Immature,M=Male)
Source
Obtained from query to North Temperate Lakes LTER data portal at the University of Wisconsin Center for Limnology. CSV file
Examples
data(CiscoTL)
str(CiscoTL)
#> 'data.frame': 8594 obs. of 8 variables:
#> $ lakeid : Factor w/ 1 level "TR": 1 1 1 1 1 1 1 1 1 1 ...
#> $ year4 : int 1981 1981 1981 1981 1981 1981 1981 1981 1981 1981 ...
#> $ sampledate: Factor w/ 59 levels "7/19/2004","7/20/2004",..: 48 47 48 51 51 51 51 48 48 47 ...
#> $ gearid : Factor w/ 9 levels "ELFISH","TRAMML",..: 5 5 5 5 5 5 5 5 5 5 ...
#> $ spname : Factor w/ 1 level "CISCO": 1 1 1 1 1 1 1 1 1 1 ...
#> $ length : int 140 146 147 153 150 152 146 153 156 176 ...
#> $ weight : num 21.4 22.3 23.3 23.5 24 24 24.5 25.9 26.5 35.8 ...
#> $ sex : Factor w/ 3 levels "F","I","M": 1 1 1 1 1 1 1 1 1 1 ...
head(CiscoTL)
#> lakeid year4 sampledate gearid spname length weight sex
#> 1 TR 1981 8/11/1981 VGN032 CISCO 140 21.4 F
#> 2 TR 1981 8/10/1981 VGN032 CISCO 146 22.3 F
#> 3 TR 1981 8/11/1981 VGN032 CISCO 147 23.3 F
#> 4 TR 1981 8/19/1981 VGN032 CISCO 153 23.5 F
#> 5 TR 1981 8/19/1981 VGN032 CISCO 150 24.0 F
#> 6 TR 1981 8/19/1981 VGN032 CISCO 152 24.0 F
op <- par(mfrow=c(2,2),pch=19)
plot(weight~length,data=CiscoTL,subset=sex=="F",main="Female")
plot(weight~length,data=CiscoTL,subset=sex=="M",main="Male")
plot(weight~length,data=CiscoTL,subset=sex=="I",main="Immature")
par(op)
