Bycatch
By-catch taken during observation of the BIM trials with the longline included several blue sharks, Prionace glauca Linnaeus 1758, 2 pelagic stingrays Pteroplatytrygon violacea Bonaparte 1832, a porbeagle shark Lamna nasus Bonnaterre 1788, and one opah (also called moonfish or kingfish) Lampris guttatus Brünnich 1788. All these species were landed to market. The opah makes particularly good eating (Hatfield, 2004; pers. comm.)3. In terms of numbers of sharks caught per hook, 10 sharks were caught using a total of 2400 hooks over a three day period in one area. This equates to 1 shark in 240 hooks, or 0.04%.
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