62
CHAPTER 04. Results and discussion
4.1. Urban metabolism inventory
It is important to state that the EF assessment inputs have been generated from urban
metabolism analysis combined with life cycle assessment (LCA). In this section data inventory
is detailed for both wilayas, i.e., Algiers and Tipaza. The generated inventory for some sectors
lacks data. These cases are mainly related to the unavailability of some statistics (ND).
For all the sectors, the statistics obtained are structured in conformity with the EF framework
by components, namely:
- Material: including the products consumed, produced, or even generated for each
sector of activity in both wilayas. This component then converses in the equivalent EF
of production (e.g., EF_crops)
- Energy use: comprising the three main forms of energy used in Algeria: fossil fuel,
natural gas, and electricity. This component then converses in the equivalent EF carbon
dioxide generated from energy (EF_carbon)
- Land use: represented by the infrastructure associated with each activity
(EF_builtland)
4.1.1. Fishing sector
The following tables (tables 12, 13) describe the share of the fishing sector in the urban
metabolism in the wilaya of Algiers and Tipaza for 2015.
For the energy component, the embodied energy in fishing represents the energy required for
ship manufacture. This component has been considered only in the wilaya of Tipaza for the
shipbuilding and repair company ECOREP, in terms of electricity use and gasoil consumption.
The operational energy for the functioning of the fishing activity considers the fleet's fuel
consumption and the electricity use in the fisheries. Moreover, for the wilaya of Tipaza, the
calculation of the EF associated with energy includes the aqua farming energy use.
Table 12. Fishing sector share in Algiers' urban metabolism (2015)
Component Required information
Data
Unit
Material
Fisheries total landings
3 695.7 tonnes
Fisheries landing by species categories
Small pelagic
Large pelagic
Demersal fishes
Crustaceans
Molluscs
3320.4
42.51
209.34
101.9
21.52
Energy
Embodied energy in fishing
Embodied energy in aqua farming (fish meal)
ND
Operational energy
Electricity consumption by port activities
27 030 KWh
Total fuel consumption during fishing trips
11.4 10
6
Liters
Fuel consumption by vessel type
Trawlers
7.1
10
6
Liters
CHAPTER 04. Results and discussion
4.1. Urban metabolism inventory
It is important to state that the EF assessment inputs have been generated from urban
metabolism analysis combined with life cycle assessment (LCA). In this section data inventory
is detailed for both wilayas, i.e., Algiers and Tipaza. The generated inventory for some sectors
lacks data. These cases are mainly related to the unavailability of some statistics (ND).
For all the sectors, the statistics obtained are structured in conformity with the EF framework
by components, namely:
- Material: including the products consumed, produced, or even generated for each
sector of activity in both wilayas. This component then converses in the equivalent EF
of production (e.g., EF_crops)
- Energy use: comprising the three main forms of energy used in Algeria: fossil fuel,
natural gas, and electricity. This component then converses in the equivalent EF carbon
dioxide generated from energy (EF_carbon)
- Land use: represented by the infrastructure associated with each activity
(EF_builtland)
4.1.1. Fishing sector
The following tables (tables 12, 13) describe the share of the fishing sector in the urban
metabolism in the wilaya of Algiers and Tipaza for 2015.
For the energy component, the embodied energy in fishing represents the energy required for
ship manufacture. This component has been considered only in the wilaya of Tipaza for the
shipbuilding and repair company ECOREP, in terms of electricity use and gasoil consumption.
The operational energy for the functioning of the fishing activity considers the fleet's fuel
consumption and the electricity use in the fisheries. Moreover, for the wilaya of Tipaza, the
calculation of the EF associated with energy includes the aqua farming energy use.
Table 12. Fishing sector share in Algiers' urban metabolism (2015)
Component Required information
Data
Unit
Material
Fisheries total landings
3 695.7 tonnes
Fisheries landing by species categories
Small pelagic
Large pelagic
Demersal fishes
Crustaceans
Molluscs
3320.4
42.51
209.34
101.9
21.52
Energy
Embodied energy in fishing
Embodied energy in aqua farming (fish meal)
ND
Operational energy
Electricity consumption by port activities
27 030 KWh
Total fuel consumption during fishing trips
11.4 10
6
Liters
Fuel consumption by vessel type
Trawlers
7.1
10
6
Liters