All European (and associated) purse seine fleets
- Area : 0°10°S – 35°E-90E
- Free school sets only, Jan to Dec.
- Effort : Fishing day. To account for increase of fishing power, 3% is added yearly to nominal effort from 1984 on.
- CPUE (t/fishing day) are initially computed by 1°square-month then averaged by month for the whole area.
- Quarterly CPUE are obtained by averaging the corresponding monthly CPUEs