| WalleyeErie2 {FSAdata} | R Documentation |
Biological data for Walleye from Lake Erie, 2003-2014.
Description
Walleye (Sander vitreus) biological data (length, weight, sex, maturity, and age) from several locations in Lake Erie, October-November of 2003-2014.
Format
A data frame of 33734 observations on the following 10 variables:
- setID
Unique gear (multifilament gill net kegged 6 ft below surface) set identification number.
- loc
Regional location (
1=Toledo to Huron,2=Huron to Fairport Harbor,3=Fairport Harbor to Conneaut).- grid
2.5-minute sampling grid location.
- year
Year of data.
- tl
Total length (mm).
- w
Weight (g). There are several missing values.
- sex
Sex (female, male).
- mat
Maturity (immature, mature).
- age
Age (yrs) from otoliths.
Topic(s)
Growth
von Bertalanffy
Weight-Length
Catch curve
Mortality
Maturity
Size Structure
Length Frequency
Condition
Source
These unpublished data are from the Ohio Department of Natural Resources, Division of Wildlife (via Christopher Vandergoot). Do not use for other than educational purposes without permission from the source. CSV file
Examples
data(WalleyeErie2)
str(WalleyeErie2)
head(WalleyeErie2)
xtabs(~year+loc+sex,data=WalleyeErie2)