Catch-at-age of Flathead Catfish from three southeastern rivers.

Description

Numbers of Flathead Catfish (Pylodictis olivaris) captured by electrofishing in three rivers – Coosa River, AL; Ocmulgee River, GA; and Satilla River, GA.

Format

A data frame of 39 observations on the following 3 variables:

• river: Location of collection (Coosa, Ocmulgee, and Satilla)
• age: Age (years) assigned from otolith
• abundance: Number of captured fish with boat electrofishing

Topic(s)

• Mortality
• Catch curve

Source

From (approximately) Figure 3 in Sakaris, P.C., E.R. Irwin, J.C. Jolley, and D. Harrison. 2006. Comparison of Native and Introduced Flathead Catfish Populations in Alabama and Georgia: Growth, Mortality, and Management. North American Journal of Fisheries Management 26:867-874.

Examples

data(FHCatfish)
str(FHCatfish)
head(FHCatfish)
op <- par(mfrow=c(2,2),pch=19)
plot(log(abundance)~age,data=FHCatfish,subset=river=="Coosa",main="Coosa")
plot(log(abundance)~age,data=FHCatfish,subset=river=="Ocmulgee",main="Ocmulgee")
plot(log(abundance)~age,data=FHCatfish,subset=river=="Satilla",main="Satilla")
par(op)