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The development and introduction of by-catch reducing technologies in three Australian prawn-trawl fisheries
Kennelly, S.J. (1999). The development and introduction of by-catch reducing technologies in three Australian prawn-trawl fisheries. Mar. Technol. Soc. J. 33(2): 73-81
In: Marine Technology Society Journal. Marine Technology Society (MTS): Washington, D.C.. ISSN 0025-3324; e-ISSN 1948-1209, meer
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| Abstract |
Three tasks are usually required to introduce new technologies that reduceby-catches in commercial fisheries: (i) identify and quantify the particular by-catchissue that requires the new devices; (ii) develop and test the devices; and (iii)implement the devices into industry by voluntary acceptance and/or legislation. Tosolve by-catch problems in prawn-trawl fisheries in three regions of Australia,different approaches have been followed with varying success, and their comparisonidentifies an ideal framework under which such problems can be resolved. Innorthern Australia's prawn-trawl fisheries, the main by-catch issues involved turtlesand the discard of a large diversity of fish species. To quantify these issues, datawere obtained from research vessels, industry log-books and samples from fishers.Before and during this work, modified gears were developed and tested in a flumetank and in the field using research vessels and, to a lesser extent, commercialvessels. Next, a separate project was established to encourage acceptance of thenew technologies by industry and involved workshops, newsletters and a library thatlent out various by-catch reducing devices to fishers. Voluntary acceptance of thenew gears is currently estimated to be 50-80% in some ports and 0-20% in others,and a three-phase plan for their legislation is due to occur between 1999 and 2002. |
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