360 
Fishery Bulletin 109(4) 
Elton Sette for their outstanding support. K. Bigelow, M. 
Laurs, C. Boggs, and three anonymous referees provided 
comments on an earlier draft that improved the manu- 
script. The assistance of A. Au, Head Librarian, Pacific 
Islands Fisheries Science Center, Honolulu, was greatly 
appreciated. This paper is dedicated to the memory of 
our colleague, Bert Kikkawa. 
Literature cited 
Arnold, G., and H. Dewar. 
2001. Electronic tags in marine fisheries research: a 
30-year perspective. In Electronic tagging and tracking 
in marine fisheries reviews: Methods and technologies 
in fish biology and fisheries (J. R. Sibert and J. L. 
Nielsen, eds.), p. 7-64. Dordrecht Kluwer, Academic 
Press, New York. 
Baum, J. K., and R. A. Myers. 
2004. Shifting baselines and the decline of pelagic sharks 
in the Gulf of Mexico. Ecol. Let. 7:135-145. 
Baum, J. K., R. A. Myers, D. G. Kelhler, B. Worm, S. J. Harley, 
and P. A. Doherty. 
2003. Collapse and conservation of shark populations in 
the northwest Atlantic. Science 299:389-392. 
Beerkircher, L. R., E. Cortes, and M. S. Shivji. 
2008. Case study: elasmobranch bycatch in the pelagic 
longline fishery off the southeastern United States, 
1992-1997. In Sharks of the open ocean: biology, fisher- 
ies and conservation (M. D. Camhi, E. K. Pikitch, and 
E. A. Babcock, eds.), p. 242-246. Blackwell Scientific 
Publications, Oxford, U K. 
Bernal, D., K. A. Dickson, R. E. Shadwick, and J. B. Graham. 
2001. Review: analysis of the evolutionary convergence 
for high performance swimming in lamnid sharks and 
tunas. Comp. Biochem. Physiol., pt. A 129:695-726. 
Bernal, D., C. Sepulveda, M. Musyl, and R. Brill. 
2009. The eco-physiology of swimming and movement pat- 
terns of tunas, billfishes, and large pelagic sharks. In 
Fish locomotion— an etho-ecological perspective (P. 
Domenici and D. Kapoor, eds.), p. 436-483. Scientific 
Pubis., Enfield, NH. 
Bestley, S., J. S. Gunn, and M. A. Hindell. 
2009. Plasticity in vertical behaviour of migrating juve- 
nile southern bluefin tuna ( Thunnus maccoyii) in rela- 
tion to oceanography of the south Indian Ocean. Fish. 
Ocean. 18: 237-254. 
Beverly, S., D. Curran, M. Musyl, and B. Molony. 
2009. Effects of eliminating shallow hooks from tuna long- 
line sets on target and non-target species in the Hawaii 
based pelagic tuna fishery. Fish. Res. 96:281-88. 
Boggs, C. H. 
1992. Depth, capture time, and hooked longevity of 
longline-caught pelagic fish: timing bites of fish with 
chips. Fish. Bull. 90:642-658. 
Bonfil, R. 
2008. The biology and ecology of the silky shark, Car- 
charhinus falcifonnis. In Sharks of the open ocean: 
biology, fisheries and conservation (M. D. Camhi, E. K. 
Pikitch, and E. A. Babcock, eds.), p. 114-127. Blackwell 
Sci. Publ., Oxford, U.K. 
Bonfil, R., S. Clarke, and H. Nakano. 
2008. The biology and ecology of the oceanic whitetip 
shark, Carcharhinus longimanus. In Sharks of 
the open ocean: biology, fisheries and conservation 
(M. D. Camhi, E. K. Pikitch, and E. A. Babcock, eds.), 
p. 128—139. Blackwell Scientific Publ., Oxford, UK. 
Borenstein, M., L. V. Hedges, J. P. T. Higgins, and H. R. Rothstein. 
2009. Introduction to meta-analysis, 421 p. Wiley Press, 
West Sussex, U.K. 
Brill, R. W., K. A. Bigelow, M. K. Musyl, K. A. Fritsches, and E. 
J. Warrant. 
2005. Bigeye tuna behavior and physiology and their 
relevance to stock assessments and fishery biology. Col. 
Vol. Sci. Pap. ICCAT 57(2):141-162. 
Burgess, G. H., L. R. Beerkircher, G. M. Cailliet, J. K. Carlson, 
E. Corte s, K. J. Goldman, R. D. Grubbs, J. A. Musick, M. K. 
Musyl, and C. A. Simpfendorfer. 
2005. Is the collapse of shark populations in the north- 
west Atlantic Ocean and Gulf of Mexico real? Fisheries 
30:20-26. 
Camhi, M. D. 
2008. Conservation status of pelagic elasmobranchs. In 
Sharks of the open ocean: biology, fisheries and conser- 
vation (M. D. Camhi, E. K. Pikitch, and E. A. Babcock, 
eds.), p. 397-417. Blackwell Scientific Publications, 
Oxford, U.K. 
Campana, S. E., W. Joyce, and M. J. Manning. 
2009a. Bycatch and discard mortality in commercially 
caught blue sharks Prionace glauca assessed using 
archival satellite pop-up tags. Mar. Ecol. Prog. Ser. 
387:241-253. 
Campana, S. E., W. Joyce, M. P. Francis, and M. J. Manning. 
2009b. Comparability of blue shark mortality estimates 
for the Atlantic and Pacific longline fisheries. Mar. 
Ecol. Prog. Ser. 396:161-164. 
Carey, F. G. 
1990. Further acoustic telemetry observations of sword- 
fish. In Planning the future of billfishes, research and 
management in the 90s and beyond (R. H. Stroud, ed.), 
p. 103-122. National Coalition for Marine Conserva- 
tion, Inc., Savannah, GA. 
Carey, F. G., and J. V. Scharold. 
1990. Movements of blue sharks (Prionace glauca) in 
depth and course. Mar. Biol. 106:329-342. 
Carruthers, E. H., D. C. Schneider, and J. D. Neilson. 
2009. Estimating the odds of survival and identifying 
mitigation opportunities for common by catch in pelagic 
longline fisheries. Biol. Conserv. 142:2620-2630. 
Chang, J-H, and K-M Liu. 
2009. Stock assessment of the shortfin mako shark 
(Isurus oxyrinchus) in the Northwest Pacific Ocean using 
per recruit and virtual population analyses. Fish. Res. 
98: 92-101 
Childress, J. J. and M. H. Nygaard. 
1974. The chemical composition and relative buoyancy of 
midwater crustaceans as a function of depth off Southern 
California. Mar. Biol. 27:225—238. 
Clarke, S., M. K. McAllister, E. J. Milner-Gulland, G. P. 
Kirkwood, C. G. J. Michielsens, D. J. Agnew, E. K. Pikitch, 
H. Nakano, and M. S. Shivji. 
2006. Global estimates of shark catches using trade 
records from commercial markets. Ecol. Let. 9:1115- 
1126. 
Choy, C. A., B. N. Popp, J. J. Kaneko, and J. C. Drazen. 
2009. The influence of depth on mercury levels in 
pelagic fishes and their prey. Proc. Nat. Acad. Sci. 
106:13865-13869. 
Compagno, L. J. V. 
1984. FAO species catalogue. Vol. 4: Sharks of the world. 
An annotated and illustrated catalogue of shark spe- 
