| DFN | = | Drift and/or fixed netters |
| DRB | = | Dredgers |
| DTS | = | Demersal trawlers and/or demersal seiners |
| FPO | = | Vessels using pots and/or traps |
| HOK | = | Vessels using hooks |
| MGO | = | Vessel using other active gears |
| MGP | = | Vessels using polyvalent active gears only |
| PG | = | Vessels using passive gears only for vessels < 12m |
| PGO | = | Vessels using other passive gears |
| PGP | = | Vessels using polyvalent passive gears only |
| PMP | = | Vessels using active and passive gears |
| PS | = | Purse seiners |
| TM | = | Pelagic trawlers |
| TBB | = | Beam trawlers |
For data calls more codes have been introduced:
| INACTIVE | = | Inactive vessels; vessel that has not been engaged in any fishing operation for at least one day in a calendar year |
| NO | = | No fishing technique (e.g. divers without fishing vessel) |
FDI data call:
calculated at the vessel*year level and each vessel*year must then be assigned only to one fishing technique in response to the data call; therefore, if a vessel operated using more than one fishing gear, the dominance criterion is applied to assign the vessel to a fishing technique5 . The fishing technique should be assigned to the vessel taking into account all its fishing activity during the year and should be provided in the same way in all the tables
The fishing technique should align with that defined in the EUMAP legislation (Commission Delegated Decision (EU) 2021/1167 of 27 April 2021) provided by a Member State to the STECF AER data call. This definition requiresthat a vessel has a single fishing technique assigned to it for a year and relies on the correct identification of the main fishing activity during the year.