1.A.4.c iii - Agriculture/Forestry/Fishing: National Fishing

In NFR sub-category 1.A.4.c iii fuel consumption and emissions of Germany's maritime fishing fleet are reported.

Primary fuel delivery data for national fishing is included in NEB lines 6 ('International Deep-Sea Bunkers') and 64 ('Coastal and Inland Navigation') for IMO-registered and unregistered ships respectively. (AGEB, 2023) ¹⁾

The actual annual amounts used are therefore calculated within (Deichnik (2023)), where ship movement data (AIS signal) allows for a bottom-up approach providing the needed differentiation.²⁾

Table 1: Annual fuel consumption, in terajoules

The strong increase after 2015 cannot be conclusively explained at the moment. However, even if the over-all fuel quantities delivered to the navigation sector would be somehow misallocated between the specific nautical acitivities, there would be no over- or under-estimation of over-all emissions.

The emission factors applied here, are derived from different sources and therefore are of very different quality.

For the main pollutants, country-specific implied values are used, that are based on tier3 EF included in the BSH model ³⁾ which mainly relate on values from the EMEP/EEA guidebook 2019 ⁴⁾. These modelled IEFs take into account the ship specific information derived from AIS data as well as the mix of fuel-qualities applied depending on the type of ship and the current state of activity.

Table 2: Annual country-specific emission factors, in kg/TJ

¹ similar EF applied to diesel oil and light fuel oil
² estimated from f-BCs as provided in ⁵⁾: f-BC (HFO) = 0.12, f-BC (MDO/MGO) = 0.31, chapter: 1.A.3.d.i, 1.A.3.d.ii, 1.A.4.c.iii, Navigation, Table 3-2 and Table A1 - BC fractions of PM emissions from relevant studies
³ ratios PM_2.5 : PM₁₀ : TSP derived from the tier1 default EF as provided in ⁶⁾

NOTE: For the country-specific emission factors applied for particulate matter, no clear indication is available, whether or not condensables are included.

For information on the emission factors for heavy-metal and POP exhaust emissions, please refer to Appendix 2.3 - Heavy Metal (HM) exhaust emissions from mobile sources and Appendix 2.4 - Persistent Organic Pollutant (POP) exhaust emissions from mobile sources.

NFR 1.A.4.c iii - National Fishing is no key source.

Uncertainty estimates for emission factors were adopted from NFR 1.A.3.d i as a comparable emission source.

Besides a routine revision of the underlying BSH model, further focus will be put on the correct allocation of actvity data to the different navigation activities covered in different NFR sub-sectors.

With respect to the strong increase in activity data from 2015 to 2016: This issue is under discussion with the BSH Hamburg as the agency in charge of the underlying model. However, these activity data are based on ship movement data showing a correspondingly increasing trend. Nonetheless, the model is under steady revision and erroneous calculations and results will be corrected whenever they are determined.