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Subject: Re: longline fisheries
From: Don McAllister <[log in to unmask]>
Reply-To:[log in to unmask]
Date:Fri, 8 Aug 1997 16:15:03 -0400

text/plain (28 lines)

Wanless,R,Ross,Mr,ADU wrote:
> I am researching the global impact of longline fisheries on seabirds.
> At present I am simply gathering data on all the longline fisheries
> around the world.  I would like the following information, preferably
> broken down by fishery (target species) and by year:

Hopefully one would also look at depths from the surface and from the
bottom, baits and hooksizes which minimize bird catch.  Cod were caught
before the era of trawlers on the Grand Banks with bottom fished baited
hooks, with probably few if any birds caught.  This being the case, the
study should distinguish such parameters.  Trawls, on the other hand,
cause extensive benthic habitat destruction, produce a high bycatch of
other biota, and while they may not kill birds certainly unbalance bird
populations by favoring those that feed on bycatch discards.


Don E. McAllister             /& Canadian Centre for Biodiversity
Ocean Voice International          /Canadian Museum of Nature
Box 37026, 3332 McCarthy Rd. /Box 3443, Station D
Ottawa, ON K1V 0W0, Canada    /Ottawa, ON K1P 6P4
URL:  E-mail: [log in to unmask]
 (or: [log in to unmask]) Tel: (613) 264-8986, Fax: (613)

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