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Originally Posted by Elgin Clock
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I think this is interesting from the Hawaii website (emphasis mine):
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Opah are not found in schools, and thus are not caught in any quantity. However, individual fish are regularly hooked by longline boats fishing over seamounts. Landings follow no set pattern in any particular area, but the presence of opah at the depths of longline fishing gear may be related to vertical migrations from the deep up the slopes of seamounts in search of food. Opah are taken on longline gear year-round, but landings seem to peak in April-August.
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also...
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In Hawaii, the opah has historically been an incidental catch of longline gear. Only recently has this species become commercially important. The opah was viewed as a good luck fish by old-time longline fishermen, who would give it away as a gesture of goodwill rather than sell it.
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Possibly a single robot will have to climb down (or is placed inside) a deep area - its task is to give scoring objects to other robots. The other robots cannot reach scoring objects without the help of this robot.