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Document: ISSF 2009-02: Bycatch in the World’s Tuna Fisheries: Measured Data, Programs and Progress Proposal. Jun 2009


Bycatch — the unintended taking of juvenile tuna, non-targeted fish, and other animals — and discards of unsuitable catch occur in nearly all of the world’s many commercial fisheries. In some they are large enough to affect the fishery, while in others they are insignificant biologically and economically. Either way, bycatch and discards represent waste of natural resources, even for species whose commercial value may be nil and whose role in the ecosystem may be as yet undefined.

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