YTFlounder: Ages of Yellowtail Flounder assigned from scales and...
In FSAdata: Data to Support Fish Stock Assessment ('FSA') Package

YTFlounder

R Documentation

Ages of Yellowtail Flounder assigned from scales and otoliths.

Description

Ages of commercially caught Georges Bank Yellowtail Flounder (Limanda ferruginea) as determined by scales, whole otoliths, or otolith cross-sections.

Format

A data frame with 27 paired observations on the following 3 variables.

scale: Ages assigned from scales
whole: Ages assigned from whole otoliths
cross: Ages assigned from cross-sections of otoliths

Topic(s)

Age Comparison
Age Precision
Age Bias
Ageing Error

Source

From tables in Annex 3 of Walsh, S.J. and J. Burnett. 2002. The Canada-United States yellowtail flounder age reading workshop: 28-30 November 2000, St. John's, Newfoundland. North Atlantic Fisheries Organization. Scientific Council Studies 35:1-59. CSV file

Examples

data(YTFlounder)
str(YTFlounder)
head(YTFlounder)
op <- par(mfrow=c(2,2),pch=19)
plot(scale~whole,data=YTFlounder)
plot(scale~cross,data=YTFlounder)
plot(whole~cross,data=YTFlounder)
par(op)

FSAdata documentation built on Aug. 24, 2023, 5:06 p.m.