Fitting Time Series Models to Fisheries Data to Ascertain Age

Figure 2

Time series of marginal increment analysis (MIA) data with one standard error interval from [4]. Notice the dip in May of each year. By fisheries convention, age in months is arbitrarily assigned a birthdate of January 1 to all fishes born in the northern hemisphere. The x axis has two legends. The first shows age in months, and the second shows the distribution of months as years.