Ages of Muskellunge assigned from scales and cleithra.

Description

Ages of St. Lawrence River, ONT, Muskellunge (Esox masquinongy) assessed from scales and cleithra.

Format

A data frame of 43 observations on the following 2 variables:

• ageC: Age assigned from examinaton of cleithrum
• ageS: Age assigned from examination of scales

Topic(s)

• Age Comparison
• Age Precision
• Age Bias
• Ageing Error

Source

From Figure 3 in Casselman,J.M. 1983. Age and growth assessment of fish from their calcified structures - techniques and tools. In E.D. Prince and L.M. Pulos, editors, Proceedings of the international workshop on age determination of oceanic pelagic fishes: Tunas, billfishes, and sharks, volume NOAA Technical Report, NMFS 8:1-17.

Examples

data(MuskieSLR)
str(MuskieSLR)
head(MuskieSLR)
plot(ageS~ageC,data=MuskieSLR)
xtabs(~ageC+ageS,data=MuskieSLR)