1.A.4.c iii National Fishing

Last updated on 04 Dec 2014 08:38 (cf. Authors)

Short description

Note: As a result of the 2010 CLRTAP Review, Germany for the first time reports activity data and emissions for sub-sector 1.A.4.c iii - National Fishing.
Due to missing data sources, only deep sea fishing has been accounted so far.

NFR-Code Name of Category Method AD EF Key Source for (by1)
1.A.4.c iii Fishing: National Fishing T1 NS, IS CS, D, C no key source

1 T = key source by Trend / L = key source by Level

Method

Activity Data

Fuel consumption data has been calculated based on the number of ships within the German fleet for deep sea fishing and the engine power installed.
Here, the number of ships has been taken from the fleet register of the European Commission. There, data can be found a) within the EC data base (EC, 2013) [1] and the member states' annual reporting (EC, 2012) [2]. Within the database, the information needed is available for all years from 1990. In contrast, nationals reports are available for the years from 1997 onward. Unfortunately, both data sources vary slightly for recent years, giving different fleet sizes and engine powers. Here, the national reports priority has been given to the national reports.

Table 1: No. of active German trawlers

1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
13 13 11 13 13 13 15 12 12 13 13 13 11 10 10 10 10 9 9 8 8 8 7

As an first and very conservative approach, it has been assumed, that all engines installed run under full load for 360 days per year.
Due to this simple first approach activity data stays unchanged for several years, as shown in the following table.

(1)
\begin{gather} AD_\text{ NFR 1.A.4.c iii} = P_\text{ installed, German trawlers} \cdot t_\text{ active} \cdot c_\text{ combustion per kWh} \end{gather}

with

tactive = 360 [d] x 24 [h/d] = 8,640 [hs] = 8,640 hours under full engine load

and

c combustion per kWh = 0.2 [kg diesel oil / kWh]

Table 2: Annual diesel oil consumption estimates in German deep sea fishing fleet, [TJ]

1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
1,928 1,928 1,631 1,928 1,928 1,928 2,224 1,780 1,780 1,964 1,509 1,550 1,207 1,098 1,098 1,098 988 988 988 878 878 878 768

assumption: no heavy fuel oil used by German trawlers

The consumption estimates have then been subtracted from the fuel consumed in international maritime transport, resulting in recalculations within the MemoItem sector 1.A.3.d i -International Navigation.

As no further information on the fuels used by the German deep sea fishing fleet has been available, it is assumed that only diesel oil is consumed. This leads to an artificial reduction of this sector's emissions but seems acceptable to the party due to the highly conservative appproach used for activity data estimation.

Emission factors

As no better data is available, emission factors for emissions from diesel oil consumption in 1.A.3.d i - International Sea Traffic are applied.

Table 3: (I)EFs used for 1990-2012 emission estimates

Main Pollutants1 Particulate Matter1 Heavy Metals1 Persistent Organis Pollutants
NEC Other PM2.5 ≤ PM10 ≤ TSP Main HM Other HM Polycyclic Aromatic Hydrocarbons 1,2 Dioxins & Furans 2 Hexachlo- robenzene Polychlorinated biphenyls
NH3 NMVOC NOx SO2 CO PM2.5 PM10 TSP Pb Cd Hg As Cr Cu Ni Se Zn B[a]P B[b]F, B[k]F, I[1,2,3-cd]P ∑PAH PCDD/F HCB PCBs
kg/TJ kg/TJ g/TJ mg/TJ µg/TJ mg/TJ
4 52 1,800 600 180 60 60 60 3.03 0.23 0.70 0.93 1.16 21 23 2.33 28 6981 IE in ∑PAH 9302 932 1.861 8.851

1 tier1 default EF from EMEP/EEA Emission Inventory Guidebook 2013 [3]
2 tier1 values derived from (Rentz et al., 2008) [4]

Trend discussion for Key Sources

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

Recalculations

As both activity data and emission factors remain unchanged, no recalculations have been carried out against submission 2013.

Uncertainties

Uncertainty estimates for activity data represent an expert judgement. Due to the very conservative approach for estimating annual fuel consumption, uncertainty is assumed to be rather high (+10% and -75%). - Uncertainty estimates for emission factors were adopted from NFR 1.A.3.d i as an comparable emission source.

Planned improvements

At the moment, a research project investigates availability and usability of ship specific engine and movement data in order to fundamentally revise the inventory for 1.A.3.d.i - International Maritime Navigation with results likely to also influence the reporting of emissions from deep-sea fishing included in this sub-category.

In addition, in order to consolidate the applied emission factors, a broad revision of the reporting of B[a]P and PAH 1-4 emissions is planned for all off-road mobile sources.

FAQs


Bibliography
2. EC, 2012: Annual report to the European Commission under Articles 12 and 13 of Regulation (EC) No 1438/2003 on efforts by the German fishing fleet to achieve a sustainable
balance between fishing capacity and fishing opportunities. - Report 2011 - URL: http://ec.europa.eu/fisheries/fleet/software/FleetManagement/FM_Reporting/AnnualReportDocs/2011_DEU_MSAR_EN.PDF
3. EMEP/EEA 2013: EMEP/EEA air pollutant emission inventory guidebook – 2013
4. Rentz et al., 2008: Nationaler Durchführungsplan unter dem Stockholmer Abkommen zu persistenten organischen Schadstoffen (POPs), im Auftrag des Umweltbundesamtes, FKZ 205 67 444, UBA Texte | 01/2008, January 2008, URL: http://www.umweltbundesamt.de/en/publikationen/nationaler-durchfuehrungsplan-unter-stockholmer
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