Рет қаралды 363,416
The strategy to capture tuna accompanied by dolphins is to circle the cetaceans with the five or six speedboats of the mother ship. Meanwhile, the purse seiner deploys the skiff, which drags the huge net surrounding in a circular shape all the dolphins on the surface and the tuna in the bottom. Neither the cetaceans jump from the floater line outside the net, neither the tuna dive more than a hundred meters… in the majority of the cases. So, in order to liberate the dolphins, the captain sails backward the ship, this maneuver bends the net in an ellipsis shape. Then, in the extreme tip, several speedboats sink a portion of the upper edge for releasing the cetaceans only. Every time the purse seiner has to fish tuna associated with dolphins this maneuver has to be repeated. In addition, the observer had to document all the steps, time, and especially dolphins’ mortality. Another task is to register megafauna sightings like sea turtles, whales, and different species of other dolphins. Sometimes, when weeks passed without fishing, crewmembers get angry. For them shorter days, filling the ship is more money in less time. The operation of loading the tunas to the ship is another dangerous work, sometimes the winch wire of the net could break apart hurting men, or splitting them in half… I always stay away from this machine.