A tropical marine fish that has long streamers or rays arising from its pectoral fins, locally important as a food fish.
Family Polynemidae: several genera and species‘Up here big tidal rivers empty into the ocean and boast world-class fishing for familiar species like cobia and Spanish mackerel plus Australia's own threadfin and blue salmon.’
- ‘They look identical to what the Australians call threadfin salmon or king threadfin.’
- ‘In Hawaii, for instance, the industry is keeping close watch on a pilot project to raise Pacific threadfin in open-ocean net pens.’
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