Dear All,
Trawler by-catch of pelagic birds is a widespread problem , and there
is a lot of research going on around the world . If you Google
"seabird mortality trawler', you will come up with a lot of hits. In
the South African case the problem seems to be greatly exacerbated by
dumping waste while the nets are being run out or hauled in and so in
effect chumming into a very effective bird trap. The by catch would be
greatly reduced by not dumping when the nets are out.
The use of scarers such as Tori lines and Carey devices has greatly
reduced the mortality in some fisheries where they are used. In the
Falkland Island fisheries they have reduced mortality rates by some
90% by using Tori lines. For a good description of the Falkands
solution. have a look at http://www.falklandsconservation.com/tori_lines_review.pdf
Cheers,
Carl Clifford
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www.birding-aus.org
birding-aus.blogspot.com
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