U.S. Department 
of Commerce 
Seattle, Washington 
Volume 110 
Number 3 
July 2012 
Fishery 
Bulletin 
Contents 
Articles 
283-292 Powers, Sean P., Crystal L. Hightower, J. Marcus Drymon, 
and Matthew W. Johnson 
Age composition and distribution of red drum ( Sciaenops ocellatus) 
in offshore waters of the north central Gulf of Mexico: an evaluation 
of a stock under a federal harvest moratorium 
293-306 Boldt, Jennifer L., Troy W. Buckley, Christopher N. Rooper, 
and Kerim Aydin 
Factors influencing cannibalism and abundance of walleye pollock 
(Theragra chaicogrommo) on the eastern Bering Sea shelf, 1982-2006 
The National Marine Fisheries 
Service (NMFS) does not approve, 
recommend, or endorse any proprie- 
tary product or proprietary material 
mentioned in this publication. No 
reference shall be made to NMFS, 
or to this publication furnished by 
NMFS, in any advertising or sales 
promotion which would indicate or 
imply that NMFS approves, recom- 
mends, or endorses any proprietary 
product or proprietary material 
mentioned herein, or which has 
as its purpose an intent to cause 
directly or indirectly the advertised 
product to be used or purchased 
because of this NMFS publication. 
The NMFS Scientific Publications 
Office is not responsible for the con- 
tents of the articles or for the stan- 
dard of English used in them. 
307-316 Tagliafico, Alejandro, Nestor Rago, Salome Rangel, 
and Jeremy Mendoza 
Exploitation and reproduction of the spotted eagle ray 
( Aetobatus normari) in the Los Friales Archipelago, Venezuela 
Companion articles 
317-331 Rooper, Christopher N., Michael H. Martin, John L Butler, 
Darin T. Jones, and Mark Zimmermann 
Estimating species and size composition of rockfishes 
to verify targets in acoustic surveys of untrawlable areas 
332-343 Jones, Darin T., Christopher D. Wilson, Alex De Robertis, 
Christopher N. Rooper, Thomas C. Weber, and John L. Butler 
Evaluation of rockfish abundance in untrawlable habitat: 
combining acoustic and complementary sampling tools 
344-360 Barlow, Paige F., and Jim Berkson 
Evaluating methods for estimating rare events with zero-heavy data: 
a simulation model estimating sea turtle bycatch in the pelagic 
longline fishery 
