Day of year in included in the maturity model and should be investigated in the weight-at-age model because how heavy a fish is should depend on when in the year it is measured with heavier fish at the end of the year. I am not sure if this information is available for all samples though but we could just use mid year for those samples that only have year and not date.
Day of year in included in the maturity model and should be investigated in the weight-at-age model because how heavy a fish is should depend on when in the year it is measured with heavier fish at the end of the year. I am not sure if this information is available for all samples though but we could just use mid year for those samples that only have year and not date.