Locating Fish Using Echo Sounders Firstly, the boat searches for fish shoals using
echo sounder systems. During the fishing maneuver, the auxiliary boat holds one end
of the net, and the larger boat sails in a circle while dropping the net around the shoal.
Once the fish are caged in the circular net, the fishermen pull a rope called the
“jareta,” which closes the large net, just like a bag (Fig. 16.4).
Engraulis encrasicolus. Mapama
Sardina pilchardus. Mapama
Trachurus mediterraneus
Sardinella aurita
Scomber colias
Scomber scombrus
Fig. 16.2 Main species (top) and secondary species (bottom) targeted by the purse seine fishing in
the SMR. Picture source: MAPAMA
16 Small Pelagic Resources: A Historic Perspective and Current State of the. . .
563
echo sounder systems. During the fishing maneuver, the auxiliary boat holds one end
of the net, and the larger boat sails in a circle while dropping the net around the shoal.
Once the fish are caged in the circular net, the fishermen pull a rope called the
“jareta,” which closes the large net, just like a bag (Fig. 16.4).
Engraulis encrasicolus. Mapama
Sardina pilchardus. Mapama
Trachurus mediterraneus
Sardinella aurita
Scomber colias
Scomber scombrus
Fig. 16.2 Main species (top) and secondary species (bottom) targeted by the purse seine fishing in
the SMR. Picture source: MAPAMA
16 Small Pelagic Resources: A Historic Perspective and Current State of the. . .
563