square or 50 mm diamond meshes of 3 mm twine thickness), and maximum engine
power (500 HP). Sometimes part of these measures, like the maximum engine
power, is not followed by all fishermen, increasing the fishing power and causing,
in the end, overfishing of resources and the ecosystems.
0
100
200
300
400
500
600
700
2004
2006
2008
2010
2012
2014
2016
Number of vessels
Small scale
OTB
PS
LLD
LLS
Fig. 18.3 Evolution of the number of vessels in GSA 01. OTB bottom otter trawl; small scale,
small-scale fleet; PS purse seine; LLS set longline; LLD drifting longline
Table 18.2 Distribution of fleets in the main ports of GSA 01. Ports are ordered from western to
eastern
Port
Trawlers
Small scale
Purse seine
Set longline
Drifting longline
Algeciras
68
1
2
2
Estepona
6
51
5
Marbella
4
25
8
Fuengirola
8
30
2
Vélez-Málaga
18
42
15
Motril
13
17
2
1
1
Adra
1
16
7
1
Roquetas de Mar
8
2
6
Almería
27
40
11
2
Carboneras
4
14
4
1
31
Garrucha
8
16
1
Águilas
9
19
3
Mazarrón
5
14
11
Cartagena
7
24
2
3
Total
110
406
78
4
47
Source of data: Spanish Ministry Fleet Register (January 2018). In black, ports of the Alboran Sea
sensu stricto. In red, ports of the Gulf of Vera
18 Demersal Resources
595