U.S. Department 
of Commerce 
Seattle, Washington 
Volume 110 
Number 2 
April 2012 
Fishery 
Bulletin 
Contents 
Articles 
143-155 Matkin, Craig O., John W. Durban, Eva L. Saulitis, 
Russel D. Andrews, Janice M. Straley, Dena R. Matkin, 
and Graeme M. Ellis 
Contrasting abundance and residency patterns of two sympatric 
populations of transient killer whales ( Oranus orca) 
in the northern Gulf of Alaska 
156-175 Rudershausen, Paul J., Jeffrey A. Buckel, Greg E. Bolton, 
Randy W. Gregory, Tyler W. Averett, and Paul B. Conn 
A comparison between circle hook and J hook performance 
in the dolphinfish, yellowfin tuna, and wahoo troll fishery 
off the coast of North Carolina 
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. 
176-192 Able, Kenneth W., Thomas M. Grothues, Jason T. Turnure, 
Donald M. Byrne, and Paul Clerkin 
Distribution, movements, and habitat use of small striped bass 
( Morone soxatilis ) across multiple spatial scales 
193-204 Tinus, Craig A. 
Prey preference of Imgcod ( Ophiodon elongatus), a top marine 
predator: implications for ecosystem-based fisheries management 
205-222 Keller, Aimee A., John R. Wallace, Beth H. Horness, 
Owen S. Hamel, and Ian J. Stewart 
Variations in eastern North Pacific demersal fish biomass based 
on the U.S. west coast groundfish bottom trawl survey (2003-2010) 
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. 
223-229 Ohnishi, Shuhei, Takashi Yamakawa, Hiroshi Okamura, 
and Tatsuro Akamine 
A note on the von Bertalanffy growth function concerning 
the allocation of surplus energy to reproduction 
