U.S. Department 
of Commerce 
Seattle, Washington 
Volume 106 
Number 4 
October 2008 
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. 
Fishery 
Bulletin 
Contents 
Articles 
337-347 Stoner, Allan W., Craig S. Rose, J. Eric Munk, 
Carwyn F. Hammond, and Michael W. Davis 
An assessment of discard mortality for two Alaskan crab species. 
Tanner crab ( Chionoecetes bairdi) and snow crab (C. opilio), 
based on reflex impairment 
348-363 Casazza, Tara L., and Steve W. Ross 
Fishes associated with pelagic Sargassum and open water lacking 
Sargassum in the Gulf Stream off North Carolina 
364-374 Rodgveller, Cara J., Chris R. Lunsford, 
and Jeffrey T. Fujioka 
Evidence of hook competition in longline surveys 
375-385 Kastelle, Craig R., Delsa M. Anderl, Daniel K. Kimura, 
and Chris G. Johnston 
Age validation of Dover sole (Microstomus pacificus) 
by means of bomb radiocarbon 
386-394 Maschner, Herbert D. G., Matthew W. Betts, 
Katherine L. Reedy-Maschner, and Andrew W. Trites 
A 4500-year times series of Pacific cod (Gadus macrocephalus) 
size and abundance: archaeology, oceanic regime shifts, 
and sustainable fisheries 
395-404 Kane, Emily A., Paula A. Olson, Tim Gerrodette, 
and Paul C. Fiedler 
Prevalence of the commensal barnacle Xenobalanus globicipitis 
on cetacean species in the eastern tropical Pacific Ocean, 
and a review of global occurrence 
