Reads an SS3 data file with r4ss::SS_readdat() and aggregates the
quarterly catch and CPUE observations from 2000 onwards into the fleet
structure used by the operating models.
Value
A named list with two matrices, each with dimensions
c(Year, Fleet):
- Landings
Total catch by season and fleet (
LL1,LL2,LL3,LL4,PS,Other).- CPUE
CPUE index by season and longline fleet (
LL1-LL4).
Details
Catches are summed across the SS3 fleets within each OM fleet:
LL1 (fleets 1-4), LL2 (5-8), LL3 (9-12), LL4 (13-16), PS (19),
and Other (17-18, 20-23).
CPUE indices are taken from SS3 index fleets 24-27 (LL1), 28-31 (LL2),
32-35 (LL3), and 36-39 (LL4). Seasons with no observation are NA.
Time steps are labelled with decimal years from MSEtool::CalcYears()
(4 seasons per year, current year 2023).