FSAdata (version 0.3.0)

YERockfish: Ages, lengths, and maturity for Yelloweye Rockfish.

Description

Ages, lengths, and maturity for female Yelloweye Rockfish (Sebastes rubberimus) from Oregon.

source

Actual data obtained directly (from Bob Hanna) from Hannah, R.W, M.T.O. Blume, and J.E. Thompson. 2009. http://www.dfw.state.or.us/mrp/publications/docs/Info200904_YlwEyeRF_Maturity.pdf{Length and age at maturity of female yelloweye rockfish (Sebastes rubberimus) and cabezon (Scorpaenichthys marmoratus) from Oregon waters based on histological evaluation of maturity.} Oregon Department of Fish and Wildlife, Information Reports 2009-04. Data obtained directly from Bob Hannah.

Topic(s)

• Growth
• Maturity
• von Bertalanffy

concept

Growth 'von Bertalanffy' 'Maturity'

Examples

data(YERockfish)
str(YERockfish)
head(YERockfish)
op <- par(mfrow=c(2,2),pch=19)
plot(length~age,data=YERockfish,ylab="Total Length (cm)",xlab="Age")
hist(YERockfish$length,xlab="Total Length (cm)",main="")
tbl1 <- with(YERockfish,table(age,maturity))
(ptbl1 <- prop.table(tbl1,margin=1))
plot(ptbl1[,2]~as.numeric(row.names(ptbl1)),type="l",xlab="Age",ylab="Proportion Mature")
tbl2 <- with(YERockfish,table(length,maturity))
(ptbl2 <- prop.table(tbl2,margin=1))
plot(ptbl2[,2]~as.numeric(row.names(ptbl2)),type="l",xlab="Age",ylab="Proportion Mature")
par(op)