1.A.4.c iii National Fishing

Last updated on 10 Dec 2013 11:53 (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, 2012) [1] and the member states' annual reporting (EC, 2010) [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: 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
13 13 11 13 13 13 15 12 12 13 13 13 11 10 10 10 10 9 9 8 8 8

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: Estimated annual fuel consumption of 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
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

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

All EF used have been taken over from 1.A.3.d i - International Sea Traffic.

Emission factors used for 2011 estimates

Main Pollutants1 Particulate Matter 1 Heavy Metals 1
NEC Other PM2.5 ≤ PM10 ≤ TSP Main HM Other HM
Pollutant NH3 NMVOC NOx SO2 CO PM2.5 PM10 TSP Pb Cd Hg As Cr Cu Ni Se Zn
Unit kg/TJ kg/TJ g/TJ
Diesel Oil 4 52 1,800 600 180 60 60 60 3.03 0.23 0.70 0.93 1.16 20.48 23.28 2.33 27.93
Heavy Fuel Oil 4 52 1,800 1,400 180 60 60 60 4.45 0.49 0.49 16.83 17.82 30.93 792 5.20 29.69
Persistent Organis Pollutants
Polycyclic Aromatic Hydrocarbons 2 Dioxins & Furans 2 Hexachlo- robenzene Polychlorinated biphenyls
Pollutant B[a]P B[b]F B[k]F I[1,2,3-cd]P ∑PAH PCDD/F HCB 1 PCBs 1
Unit mg/TJ µg/TJ mg/TJ
Diesel Oil 698 IE3 IE3 IE3 930 93 1.86 8.85
Heavy Fuel Oil 698 IE3 IE3 IE3 930 93 3.46 14.10

1 Tier1 default EF from EMEP/EEA Emission Inventory Guidebook 2009
2 EF from UBA study
3 included in EF(∑PAH)

Trend discussion for Key Sources

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

Recalculations

As AD and EF remain unchanged, no recalculations have been carried out against data reported within submission 2012.

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, no category specific improvements are planned.

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.

FAQs


Bibliography
1. EC, 2012: Fleet Register On The Net; URL: http://ec.europa.eu/fisheries/fleet/index.cfm?method=Search.menu
2. EC, 2010: 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. Page 4, 1.6 and 1.7 and page 8, tables: 'German fishing fleet as at 31.12.2008' and 'Absolute change 2008 compared with previous year'; URL: http://ec.europa.eu/fisheries/fleet/software/FleetManagement/FM_Reporting/AnnualReportDocs/2008_DEU_MSAR_EN.PDF
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