FSAdata (version 0.3.0)

Cabezon: Ages, lengths, and maturity of female Cabezon from Oregon.

Description

Ages, lengths, and maturity of female Cabezon (Scorpaenichthys marmoratus) from Newport and Depoe Bay, 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.

Topic(s)

• Maturity
• Growth
• von Bertalanffy

concept

Growth 'von Bertalanffy' Maturity

Examples

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