Santos et ai.: Effects of leader material on catches of longline fisheries in the Indian Ocean 
231 
Alma Lusa for their cooperation and commitment dur¬ 
ing this study, and to the scientific fishery observers 
for collecting the data. Thanks are also due to Paul de 
Bruyn (International Commission for the Conservation 
of Atlantic Tunas) for a revision of the original manu¬ 
script, and to the 3 anonymous reviewers who greatly 
improved this work during the revision stage. 
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