234 
Fishery Bulletin 1 14(2) 
of the Fishing and Hydroacoustic Technology Labora- 
tory, Federal University of Rio Grande, and the staff 
of the Laboratory of Growth and Ichthyology, Ocean- 
ography Institute of the University of Sao Paulo, for 
on-board work during cruises. We also thank D. Sasaki 
for producing the maps, M. Rodrigues da Costa, and 
A. Vaz dos Santos for their constructive contributions 
to an early manuscript version of this article, and 3 
referees for their great contributions for improving the 
manuscript. 
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