71
Table 23. Fishing Sector's Ecological Footprint in the wilaya of Algiers and Tipaza
Component Data
Unit
Emission
(tCO2eq)
Ecological Footprint
(gha)
Algiers Tipaza
Algiers
Tipaza
Algiers
Tipaza
Material
3695.7
9 023.9 Tonnes
[-]
[-] 15338.48 275030.43
Embodied
Energy
[-]
12 416
KWh
[-]
65.9 11950.9
1496.55
[-] 23 095.5
Liters
[-]
4.71
Operational
Energy
35 030
[-]
KWh
11.4
1.7
10
6
Liters
35 894.95 4422.15
Total
energy
[-]
[-] 35 849.95 4496.61
Built Land
189.7
16.4
Ha
176.88
15.29
The fishing EF of Tipaza is 17 times that of Algiers, as the wilaya of Tipaza's total landing is
twice that of Algiers. The fisheries of both wilayas target the same species, particularly small
pelagics and demersal fish, with an average trophic level of 3.85. Consequently, the large gap
in EF_fish relates mainly to the tonnage of species caught, which is higher in Tipaza.
According to the study results, the EF_fish accounts for most of the EF_Total_Fishing in both
wilayas (99% in the wilaya of Tipaza). This could be related to the absence of data describing
energy use in this sector, as it was mostly limited to fuel consumption during fishing.
The PPR depends on two variables: the trophic level TL and the fishery production tonnage. It
should be noted that the TL depends on species identification by the data collectors at the
0,00
100 000,00
200 000,00
300 000,00
Algiers
Tipaza
EF (GHA)
EF_fish
EF_c
EF_Built
EF_Total_Fishing
Figure 5. Ecological footprint of the fishing sector of Algiers and Tipaza wilayas (2015)