FSAdata (version 0.3.3)

WalleyeRL: Growth increment data for Red Lakes Walleye.

Description

Growth increment data for Red Lakes Walleye (Sander vitreus) in one-fish-per-line format.

Format

A data frame with 1543 observations on the following 13 variables.

fish

A fish identification number. Unique within a year but not across years.

yearcap

Year the fish was captured.

ce

A factor denoting capture gear (C=commercial and E=experimental nets).

agecap

Age of fish at capture.

lencap

Length of fish at capture.

inc1

Scale measurement to first annulus.

inc2

Scale measurement between first and second annulus.

inc3

Scale measurement between second and third annulus.

inc4

Scale measurement between third and fourth annulus.

inc5

Scale measurement between fourth and fifth annulus.

inc6

Scale measurement between fifth and sixth annulus.

inc7

Scale measurement between sixth and seventh annulus.

radcap

Scale radius at time of capture

Source

Cyterski, M.J. and G.R. Spangler. 1996. A tool for age determination. North American Journal of Fisheries Management, 16:403-412.

Topic(s)

• Growth increment analysis
• Weisberg linear growth model

Examples

data(WalleyeRL)
str(WalleyeRL)
head(WalleyeRL)