TOPP Census



Maps and Data

Live Data mapThis is the portal to the maps used by TOPP researchers. The map pictured here shows the interweaving tracks of several pelagic (open-ocean) species we tag, including laysan albatross (blue dotted line in the western Pacific Ocean), leatherback turtles, (white tracks), salmon sharks (in red), and elephant seals (in green). You can look at the tracks of all the species, or individuals. Just like the animated maps on the home page, these animals' tracks are updated every day.

The animals' satellite tags send data to the Argos satellite. TOPP researchers download and combine the data with maps showing the temperature of the sea surface and areas of concentration of chlorophyll, a green pigment that's present in phytoplankton -- tiny plants that make up the base of the ocean's food chain. Where there are large concentrations of phytoplankton, there are probably zooplankton, tiny fish, larger fish, and TOPP predators. So, not only are the animals tagged by TOPP showing us where they journey -- something that people just didn't know when we began this project in 2000 -- but they're also showing us that there are deserts and oases that move across the ocean.


Publication Date

Tracking apex marine predator movements in a dynamic ocean

(Supplementary materials)

Block, B.A., Jonsen, I.D., Winship, A.J., Shaffer, S.A., Bograd, S.J., Hazen, E.L., Foley, D.G., Breed, G.A., Harrison, A.-L., Ganong, J.E., Swithenbank, A., Castleton, M., Dewar, H., Mate, B.R., Shillinger, G.L., Schaefer, K.M., Benson, S.R. Weise, M.J., Henry, R.W., Costa, D.P.
Nature, doi:
10.1038/news.2011.379 (2011).
6/14/2011 Convergent evolution in locomotory patterns of flying and swimming animals Gleiss, A.C., Jorgensen, S.J., Liebsch, N., Sala, J.E., Norman, B., Hays, G.C., Quintana, F., Grundy, E., Campagna, C., Trites, A.W., Block, B.A., Wilson, R.P.

Nat. Commun. 2:352 doi: 10.1038/ncomms1351 (2011).

3/9/2011 A first estimate of white shark, Carcharodon carcharias, abundance off Central California Chapple, T.K., Jorgensen, S.J., Anderson, S.D., Kanive, P.E., Klimley, A.P., Botsford, L.W., Block, B.A. Biology Letters, doi: 10.1098/rsbl.2011.0124
3/1/2011 Long-term individual identification and site fidelity of white sharks, Carcharodon carcharias, off California using dorsal fins Anderson, S.D., Chapple, T.K., Jorgensen, S.J., Klimley, A.P., Block, B.A. Marine Biology, doi: 10.1007/s00227-011-1643-5
1/31/2011 Vertical and horizontal habitat preferences of post-nesting leatherback turtles in the South Pacific Ocean Shillinger, G.L., Swithenbank, A.M., Bailey, H.B., Bograd, S.J., Castleton, M.R., Wallace, B.P., Spotila, J.R., Paladino, F.V., Piedra, R., Block, B.A. Marine Ecology Progress Series 422: 275-289, 2011
7/28/2010 Warm fish with cold hearts: thermal plasticity of excitation-contraction coupling in bluefin tuna Shiels, H.A., Di Maio, A., Thompson, S., Block, B.A.

Proc. R. Soc. B 2011 278: 18-27, 2010.  

doi: 10.1098/rspb.2010.1274

6/4/2010 Shearwater foraging in the Southern Ocean: the roles of prey availablity and winds Raymond, B., Shaffer, S.A., Sokolov, S., Woehler, E.J., Costa, D.P., Einoder, L., Hindell, M., Hosie, G., Pinkerton, M., Sagar, P.M., Scott, D., Smith, A., Thompson, D.R., Vertigan, C., Weimerskirch, H. PLoS ONE 5(6): e10960. doi:10.1371/journal.pone.0010960
6/3/2010 Approaches to studying climatic change and its role on the habitat selection of Antarctic pinnipeds Costa, D.P., Hickstadt, L.A., Crocker, D.E., McDonald, B.I., Goebel, M.E., Fedak, M.A. Integrative and Comparative Biology, pp. 1-13, doi:10.1093/icb/icq054
5/28/2010 Comparative influence of ocean conditions on yellowfin and Atlantic bluefin tuna catch from longlines in the Gulf of Mexico Teo, S.L.H. and Block, B.A. PLoS ONE 5(5): e10756. doi:10.1371/journal.pone.0010756
4/1/2010 The role of body size in individual-based foraging strategies of a top marine predator Weise, M.J., Harvey, J.T. and Costa, D.P. Ecology 91(4): 1004-101, 2010
3/22/2010 Resource partitioning by species but not sex in sympatric boobies in the central Pacific Ocean Young, H.S., Shaffer, S.A., McCauley, D.J., Foley, D.G., Dirzo, R. and Block, B.A. Marine Ecology Progress Series 403: 291-301, 2010
3/3/2010 Biologging technologies: new tools for conservation. Introduction Bograd, S.J., Block, B.A., Costa, D.P., and Godley, B.J. Endangered Species Research10: 1-7, 2010
2/2/2010 Identification of high-use internesting habitats for
eastern Pacific leatherback turtles: role of the
environment and implications for conservation
Shillinger, G.L., Swithenbank, A.M., Bograd, S.J., Bailey, H., Castleton, M.R., Wallace, B.P., Spotila, J.R., Paladino, F.V., Piedra, R., and Block, B.A. Endangered Species Research 10: 233-243, 2010
2/2/2010 Climate-scale hydrographic features related to
foraging success in a capital breeder, the northern
elephant seal Mirounga angustirostris
Simmons, S.E., Crocker, D.E., Hassrick, J.L., Kuhn, C.E., Robinson, P.W., Tremblay, Y., and Costa, D.P. Endangered Species Research 10: 215-232, 2010
1/29/2010 Condition and mass impact to oxygen stores and dive duration in adult female northern elephant seals Hassrick, J.L., Crocker, D.E., Teutschel, N.M., McDonald, B.I., Robinson, P.W., Simmons, S.E., and Costa, D.P. Journal of Experimental Biology 213, 585-592 (2010)
1/15/2010 Accuracy of ARGOS Locations of Pinnipeds at-Sea
Estimated Using Fastloc GPS
Costa, D.P., Robinson, P.W., Arnould, J.P.Y., Harrison, A., Simmons, S.E., Hassrick, J.L., Hoskins, A.J., Kirkman, S.P., Oosthuizen, H., Villegas-Amtmann, S., and Crocker, D.E. PLoS ONE 5(1): e8677, 2010
12/21/2009 Habitat use in Atlantic bluefin tuna Thunnus
inferred from diving behavior
Wilson, S.G., and Block, B.A. Endangered Species Research 10: 355-367, 2010
11/30/2009 Behavioural estimation of blue whale movements
in the Northeast Pacific from state-space model
analysis of satellite tracks
Bailey, H., Mate, B.R., Palacios, D.M., Irvine, L., Bograd, S.J., and Costa, D.P. Endangered Species Research 10: 93-106, 2010
11/30/2009 Behavioural estimation of blue whale movements
in the Northeast Pacific from state-space model
analysis of satellite tracks
Bailey, H., Mate, B.R., Palacios, D.M., Irvine, L., Bograd, S.J., and Costa, D.P. Endangered Species Research 10: 93-106, 2010

Philopatry and migration of Pacific white sharks

(with supplement)

Jorgensen, S.J., Reeb, C.A., Chapple, T.K., Anderson, S., Perle, C., Van Sommeran, S.R., Fritz-Cope, C., Brown, A.C., Klimley, A.P., and Block, B.A. Proceedings of the Royal Society B, doi:10:1098/rspb.2009.1155, 2009
10/28/2009 Three-dimensional resting behaviour of northern elephant seals: drifting like a falling leaf Mitani, Y., Andrews, R.D., Sato, K., Kato, A., Naito, Y., Costa, D.P. Biology Letters, doi: 10.1098/rsbl.2009.0719, 2009
10/1/2009 Low Synchrony in the Breeding Cycle of Galapagos Sea Lions Revealed by Seasonal Progesterone Concentrations Villegas-Amtmann, S., Atkinson, S. and Costa, D.P. Journal of Mammalogy, 90(5):1232-1237, 2009
9/28/2009 Bringing home the trash: do colony-based differences in foraging distribution lead to increased plastic ingestion in Laysan albatrosses? Young, L.C., Vanderlip, C., Duffy, D.C., Afanasyev, V., Shaffer, S.A. PLoS ONE 4(10): e7623. doi:10.1371/journal.pone.0007623, 2009
9/28/2009 Introduction and synthesis: spatial ecology of seabirds at sea Gonzalez-Solis, J., Shaffer, S.A. Marine Ecology Progress Series 391: 117-120, 2009
9/28/2009 Spatiotemporal habitat use by breeding sooty shearwaters Puffinus griseus
Shaffer, S.A., Weimerskirch, H., Scott,D., Pinaud, D., Thompson, D.R., Sagar, P.M., Moller, H., Taylor, G.A., Foley, D.G., Tremblay, Y., Costa, D.P. Marine Ecology Progress Series 391: 209-220, 2009
9/28/2009 Analytical approaches to investigating seabird-environmental interactions: a review Tremblay, Y., Bertrand, S., Henry, R.W., Kappes, M.A., Costa, D.P., Shaffer, S.A. Marine Ecology Progress Series 391: 153-163, 2009
9/28/2009 Species- and sex-specific differences in foraging behaviour and foraging zones in blue-footed and brown boobies in the Gulf of California Weimerskirch, H., Shaffer, S.A., Tremblay, Y., Costa, D.P., Gadenne, H., Kato, A., Ropert-Coudert, Y., Sato, K., Aurioles,D. Marine Ecology Progress Series 391: 267-278, 2009
09/03/2009 Effects of geolocation archival tags on reproduction and adult body mass of Sooty Shearwater (Puffinus griseus) Adams, J., Scott, D., McKechnie, S., Blackwell, G., Shaffer, S.A., and H. Moller New Zealand Journal of Zoology 36: 355-366, 2009
8/15/2009 Fishing effort redistribution in response to area closures Powers, J.E., Abeare, S.M. Fisheries Research 99: 216–225, 2009
07/29/2009 Extreme hypoxemic tolerance and blood oxygen depletion in diving elephant seals Meir, J.U., Champagne, C.D., Costa, D.P., Williams, C.L., Ponganis, P.J. J Physiol Regul Integr Comp Physiol, 2009
07/16/2009 Nutrient and salinity decadal variations in the central and eastern
North Pacific
Di Lorenzo, E., Fiechter, J., Schneider, N., Bracco, A., Miller, A. J., Franks, P. J. S.,
Bograd, S. J., Moore, A. M., Thomas, A. C., Crawford, W., Peña, A., Hermann, A. J.
Geophysical Research Letters 36, 2009
07/10/2009 Vertical Movements and Habitat Utilization of Skipjack (Katsuwonus pelami), Yellowfin (Thunnus albacares), and Bigeye (Thunnus obesus) Tunas in the Equatorial Eastern Pacific Ocean, Ascertained Through Archival Tag Data Schaefer, K.M., Fuller, D.W., Block, B.A. J.L. Nielsen et al. (eds.), Tagging and Tracking of Marine Animals with Electronic Devices,
Reviews: Methods and Technologies in Fish Biology and Fisheries 9, 2009
07/07/2009 Seasonal Movements, Aggregations and Diving Behavior of Atlantic Bluefin Tuna (Thunnus thynnus) Revealed with Archival Tags Walli, A., Teo, S.T.H., Boustany, A., Farwell, C.J., Williams, T., Dewar, H., Prince, E., Block, B.A. PLoS ONE 4(7): e6151, 2009
06/10/2009 Effect of thermal acclimation on action potentials and sarcolemmal K+ channels from Pacific bluefin tuna cardiomyocytes Galli, G.L.J., Lipnick, M. S., Block, B.A. Am J Physiol Regul Integr Comp Physiol 297: R502–R509, 2009
05/06/2009 Estimating chlorophyll profiles from electronic
tags deployed on pelagic animals
Steven L. H. Teo, Raphael M. Kudela, Amber Rais, Chris Perle, Daniel P. Costa,
Barbara A. Block
Aquatic Biology 5: 195-207, 2009
04/08/2009 Expression of Hsp70, Na+/K+ ATP-ase, HIF-1α, IL-1β and TNF-α in captive Pacific bluefin tuna (Thunnus orientalis) after chronic warm and cold exposure Mladineo, I., Block, B.A. Journal of Experimental Marine Biology and Ecology 374: 51–57, 2009
03/21/2009 Phylogeography of California and Galápagos sea lions
and population structure within the California sea lion
Schramm, Y., Mesnick, S.L., de la Rosa, J., Palacios, D.M., Lowry, M.S., Aurioles-Gamboa, D., Snell, H.M., Escorza-Treviño, S. Mar Biol 156:1375–1387, 2009
03/05/2009 A Parsimonious Approach to Modeling Animal Movement Data Tremblay, Y., Robinson, P.W., Costa, D.P. PLoS ONE 4(3): e4711, 2009
03/01/2009 Advances in Conservation Oceanography: New Tagging and Tracking Technologies and Their Potential for Transforming the Science Underlying Fisheries Management Greene, C.H., Block, B.A., Welch, D., Jackson, G., Lawson, G.L., Rechisky, E.L. Oceanography Vol.22, No.1, 2009
02/27/2009 Heterologous hybridization to a complementary DNA
microarray reveals the effect of thermal acclimation in
the endothermic bluefin tuna (Thunnus orientalis)
Castilho, P.C., Buckley, B.A., Somero, G., Block, B.A. Molecular Ecology 18: 2092–2102, 2009
01/01/2009 Field validation of an inexpensive time-depth recorder Robinson, P.W., Villegas-Amtmann, S.V., Costa, D.P. Marine Mammal Science, 25(1): 199–205, 2009
01/01/2009 Phenology of coastal upwelling in the California Current Bograd, S.J., Schroeder, I., Sarkar, N., Qiu, X., Sydeman, W.J., Schwing, F.B. Geophysical Research Letters 36, 2009
12/24/2008 Wind, waves, and wing loading: morphological specialization may limit range expansion of endangered albatrosses Suryan, R.M., Anderson, D.J., Shaffer, S.A., Roby, D.D., Tremblay, Y., Costa, D.P., Sievert, P.R., Sato, F., Ozaki, K., Galogh, G.R., Nakamura, N. PLoS ONE 3(12)
12/19/2008 Near real time satellite tracking of striped marlin (Kajikia audax) movements in the Pacific Ocean Holdsworth, J.C., Sippel, T.J., Block, B.A. Marine Biology 156: 505-514, 2008
11/18/2008 Migration of an upper trophic level predator, the salmon shark Lamna ditropis, between distant ecoregions Weng, K.C., Foley, D.G., Ganong, J.E., Perle, C., Shillinger, G.L., Block, B.A. Marine Ecology Progress Series 372: 253-264, 2008
10/31/2008 Natal homing and population structure in Atlantic bluefin tuna Rooker J., Secor, D., DeMetrio, G.D., Schloesser, R., Block, B.A., Neilson, J.D. Science 322: 742, 2008
09/22/2008 Foraging behavior of humpback whales: kinematic and respiratory patterns suggest a high cost for a lunge Goldbogen, J.A., Calambokidis, J., Croll, D.A., Harvey, J.T., Newton, K.M., Oleson, E.M., Schorr, G., Shadwick, R.E. The Journal of Experimental Biology 211: 3712-3719, 2008
09/10/2008 A sequential Bayesian methodology to estimate movement and exploitation rates using electronic and conventional tag data: application to Atlantic bluefin tuna (Thunnus thynnus) Kurota, H., McAllister, M.K., Lawson, G.L., Nogueira, J.I., Teo, S.L.H., Block, B.A. Can. J. Fish. Aquat. Sci. 66: 321-342, 2009
08/19/2008 Southern Ocean frontal structure and sea-ice
formation rates revealed by elephant seals
Charrassin, J.-B., Hindell, M., Rintoul, S.R., Roquet, F., Sokolov, S., Biuw, M., Costa, D., Boehme, L., Lovell, P., Coleman, R., Timmermann, R., Meijers, A., Meredith, M., Park, Y.-H., Bailleul, F., Goebel, M., Tremblay, Y., Bost, C.-A., McMahon, C.R., Field, I.C., Fedak, M.A., Guinet, C. Proceedings of the National Academy of Sciences 105 (33): 11634-11639, 2008
07/29/2009 Untangling the relationships among climate, prey
and top predators in an ocean ecosystem
Wells, B.K., Field, J.C., Thayer, J.A., Grimes, C.B., Bograd, S.J., Sydeman, W.J., Schwing, F.B., Hewitt, R. Marine Ecology Progress Series 364: 15-29, 2008
07/15/2008 Persistent leatherback turtle migrations present opportunities for conservation Shillinger G.L., Palacios D.M., Bailey H., Bograd S.J., Swithenbank A.M. PLoS Biology
07/15/2008 Multiple foraging strategies in a marine apex predator, the Galapagos sea lion
Zalophus wollebaeki
Villegas-Amtmann, S., Costa, D.P., Tremblay, Y., Salazar, S., Aurioles-Gamboa, D. Marine Ecology Progress Series 363: 299-309, 2008
06/28/2008 Oxygen declines and the shoaling of the hypoxic boundary in the California Current Bograd, S.J., Castro, C.G., Di Lorenzo, E., Palacios, D.M., Bailey, H., Gilly, W., Chavez, F.P. Geophysical Research Letters 35, 2008
04/30/2008 North Pacific Gyre Oscillation links ocean climate and ecosystem
Di Lorenzo, E., Schneider, N., Cobb, K.M., Franks, P.J., Chhak, K., Miller, A.J., McWilliams, J.C., Bograd, S.J., Arango, H., Curchister, E., Powell, T.M., Riviere, P. Geophysical Research Letters 35, 2008
03/28/2008 Application of tracking and data-logging technology
in research and conservation of seabirds
Burger, A.E., Shaffer, S.A. The Auk 125(2): 253-264, 2008
03/03/2008 Identifying and comparing phases of movement by leatherback turtles using state-space models Bailey, H., Shillinger, G., Palacios, D, Bograd, S., Spotila, J., Paladino, F., Block, B. Journal of Experimental Marine Biology and Ecology 356, 128-135, 2008
02/29/2008 An oceanographic context for the foraging ecology of eastern Pacific leatherback turtles: Consequences of ENSO Saba, V.S., Shillinger, G.L., Swithenbank, A.M., Block, B.A., Spotila, J.R., Musick, J.A., Paladino, F.V. Deep-Sea Research I 55: 646-660, 2008
2008 Time to eat: measurements of feeding behaviour in a large marine predator, the northern elephant seal Mirounga angustirostris Kuhn, C.E., Crocker, D.E., Tremblay, Y., Costa, D.P. Journal of Animal Ecology, 2008
12/27/2007 Fine-scale habitat selection of crabeater seals as determined by diving behavior Burns, J.M., Hindell, M.A., Bradshaw, C.J.A., Costa, D.P. Deep-Sea Research II 55: 500-514, 2008
12/23/2007 Upper ocean variability in west Antarctic Peninsula continental shelf waters as measured using instrumented seals Costa, D.P., Klinck, J.M., Hofmann, E.E., Dinniman, M.S., Burns, J.M. Deep-Sea Research II 55: 323-337, 2008
10/17/2007 Small-Scale Fisheries Bycatch Jeopardizes Endangered Pacific Loggerhead Turtles Peckham, H.S., Diaz, D.M., Walli, A., Ruiz, G., Crowder, L.B., Nichols, W.J. PLoS ONE, 2007
09/27/2007 Linking foraging behaviour of the northern elephant seal with oceanography and bathymetry at mesoscales Simmons, S. E., Crocker, D.E., Kudela, R.M., Costa, D.P. Marine Ecology Progress Series 346: 265-275, 2007
09/19/2007 Temperature effects on metabolic rate of juvenile Pacific bluefin tuna Thunnus orientalis Blank, J.M., Morrissette, J.M., Farwell, C.J., Price, M., Schallert, R.J., Block, B.A. The Journal of Experimental Biology 210: 4254-4261, 2007
09/07/2007 Patterns and controls of chlorophyll-a and primary productivity
cycles in the Southern California Bight
Mantyla, A.W., Bograd, S.J., Venrick, E.L. Journal of Marine Systems 73: 48–60, 2008
08/23/2007 Striped marlin (Tetrapturus audax) movements and habitat utilization during a summer and autumn in the Southwest Pacific Ocean Sippel, T.J., Davie, P.S., Holdsworth J.C., Block, B.A. Fisheries Oceanography 16: 459-472, 2007
08/21/2007 Variations in behavior and condition of a Southern Ocean top predator in relation to in situ oceanographic conditions Biuw, M, Boehme, L, Guinet, C., Hindell, M., Costa, D., Charrassin, J.-B., Roquet, F., Bailleul, F., Meredith, M., Thorpe, S., Tremblay, Y., McDonald, B., Park, Y.-H., Rintoul, S.R., Bindoff, N., Goebel, M., Crocker, D., Lovell, P., Nicholson, J., Monks, F., Fedak, M.A. Proceedings of the National Academy of Sciences 104 (34): 13705-13710, 2007
08/21/2007 Remotely sensed spawning habitat of Pacific sardine (Sardinops sagax) and Northern anchovy (Engraulis mordax) within the California Current Reiss, C.S., Checkley Jr., D.M., Bograd, S.J. Fish. Oceanogr. 17 (2): 126–136, 2008
07/17/2007 Migration and habitat of white sharks
(Carcharodon carcharias) in the eastern Pacific Ocean
Weng, K.C., Boustany, A.M., Pyle, P., Anderson, S.D., Brown, A., Block, B.A. Marine Biology, Online First
06/21/2007 Movements, behavior, and habitat utilization of yellowfin tuna (Thunnus albacares) in the northeastern Pacific Ocean, ascertained through archival tag data Schaefer, K.M., Fuller, D.W., Block, B.A. Marine Biology, Online First
05/24/2007 Movements, behavior and habitat preferences of juvenile white sharks Carcharodon carcharias in the eastern Pacific.
Weng, K.C., O’Sullivan, J.B., Lowe, C.G., Winkler, C.E., Dewar, H., Block, B.A. Marine Ecology Progress Series 338: 211-224, 2007
03/20/2007 Annual migrations, diving behavior, and thermal biology of Atlantic bluefin tuna, Thunnus, thynnus, on their Gulf of Mexico breeding grounds Teo, S.L.H., Boustany, A., Dewar, H., Stokesbury, M.J.W., Weng, K.C., Beemer, S., Seitz, A.C., Farwell, C.J., Prince, E.D., Block, B.A. Marine Biology, Volume 151, 1-18, 2007
03/20/2007 Influence of Swimming Speed on Metabolic Rates of Juvenile Pacific Bluefin Tuna and Yellowfin Tuna Blank, J.M., Farwell, C.J., Morrissett, J.M., Schallert, R.J., Block, B.A. Physiological and Biochemical Zoology, 80(2): 167-177, 2007
03/15/2007 Fractal landscape method: an alternative approach to measuring area-restricted searching behavior Tremblay, Y., Roberts, A. J., Costa, D.P. The Journal of Experimental Biology 210: 935-945, 2007
03/12/2007 Diving behavior of sperm whales in relation to behavior of a major prey species, the jumbo squid, in the Gulf of California, Mexico Davis, R.W., Jaquet, N., Gendron, D., Markaida, U., Bazzino, G., Gilly, W. Marine Ecology Progress Series 333: 291-302, 2007
03/03/2007 Biological and physical forcings of late summer chlorophyll blooms at 30°N in the oligotrophic Pacific Wilson, C, Villareal, T.A., Maximenko, N., Bograd, S.J., Montoya, J.P., Schoenbaechler, C.A. Journal of Marine Systems 69: 164-176, 2008
01/25/2007 Behavioral context of call production by eastern North Pacific blue whales Oleson, Erin M., Calambokidis, John, Burgess, William C., McDonald, Mark A., LeDuc, Carrie A., Hildebrand, John A. Marine Ecology Progress Series 330: 269-284, 2007
01/15/2007 Diving Physiology of Marine Vertebrates Costa, Daniel P. Encyclopedia of Life Sciences
2007 Horizontal and vertical migrations of Dosidicus gigas in the Gulf of California revealed by electronic tagging Gilly, W.R. in Robert J. Olson and Jock W. Young (Eds.). 2007. The role of squid in open ocean
ecosystems. Report of a GLOBEC-CLIOTOP/PFRP workshop, 16-17 November 2006,
Honolulu, Hawaii, USA. GLOBEC Report 24: vi, pp. 3-9
2007 Perspectives on Dosidicus gigas in a changing world Gilly, W.R., Markaida, U. in Robert J. Olson and Jock W. Young (Eds.). 2007. The role of squid in open ocean
ecosystems. Report of a GLOBEC-CLIOTOP/PFRP workshop, 16-17 November 2006,
Honolulu, Hawaii, USA. GLOBEC Report 24: vi, pp. 81-90
2007 Swimming speed and foraging strategies of northern elephant seals Hassrick, J. L., D. E. Crocker, R. L. Zeno, S. B. Blackwell, D. P. Costa, and B. J. Le Boeuf. Deep Sea Research II 54: 369-383, 2007
2007 Horizontal and vertical movement of bluefin tuna, Thunnus thynnus orientalis, in relationship to oceanography Kitagawa, T., Boustany, A., Farwell, C., Williams, T. D., Castleton, M., Block, B. A. Fisheries Oceanography 16:5, 409-421, 2007
2007 Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration Rasmussen, K., D.M. Palacios, J. Calambokidis, M. Saborio, L. Dalla-Rosa, E. Secchi, G. Steiger, J. Allen, and G. Stone. Biology Letters
2007 A comparison of indirect measures of feeding behaviour based on ARGOS tracking data Robinson, P. W., Y. Tremblay, D. E. Crocker, M. A. Kappes, C. E. Kuhn, S. A. Shaffer, S. E. Simmons, and D. P. Costa. Deep Sea Research Part II: Topical Studies in Oceanography 54: 356-368, 2007
2007 Stroke frequency, but not swimming speed, is related to body size in free-ranging seabirds, pinnipeds and cetaceans Sato, K., Y. Watanuki, A. Takahashi, P. Miller, H. Tanaka, R. Kawabe, P. Ponganis, Y. Handrich, T. Akamatsu, Y. Watanabe, Y. Mitani, D. Costa, C. Bost, K. Aoki, M. Amano, P. Trathan, A. Shapiro, and Y. Naito. Proceedings of the Royal Society B: Biological Science 274: 471-477, 2007
2007 Total body oxygen stores and physiological diving capacity of California sea lions as a function of sex and age Weise, M. J. and D. P. Costa Journal of Experimental Biology 210: 278-289, 2007
2006 Impact of El Niño on the foraging behavior of female northern elephant seals Crocker, D. E., Costa, D. P., Le Boeuf, B. J., Webb, P. M., and Houser, D. S. Marine Ecology Progress Series 309: 1-10, 2006
2006 Spawning by jumbo squid Dosidicus gigas in the San Pedro Martir Basin, Gulf of California, Mexico Gilly, W. F., C. Elliger, C. Salinas, S. Camarillo-Coop, G. Bazzino and M. Beman. Marine Ecology Progress Series 313: 125-133, 2006
2006 Identifying and quantifying prey consumption using stomach temperature change: a comparison between a seal and sea lion species. Kuhn, C.E. and Costa, D.P. Journal of Experimental Biology 209: 4524-4532, 2006
2006 Spring-time distributions of migratory marine birds in the southern California Current: Oceanic eddy associations and coastal habitat hot spots over 17 years. Yen, P. P. W., Sydeman, W. J., Bograd, S. J. and Hyrenbach, K. D. Deep Sea Research Part II: Topical Studies in Oceanography 53: 399-418, 2006
2006 A Database for the Study of Marine Mammal Behavior: Gap Analysis, Data Standardization, and Future Directions Shaffer. S.A. and Costa, D.P. IEEE Journal of Ocean Engineering 31: 82-86, 2006
11/10/2006 Movement and diving behavior of male California sea lion (Zalophus californianus) during anomalous oceanographic conditions of 2005 Michael J. Weise, Daniel P. Costa, and Raphael M. Kudela Geophysical Research Letters 33: L22S10, 2006
10/23/2006 Vertical and horizontal migrations by the jumbo squid Dosidicus gigas revealed by electronic tagging W. F. Gilly1,*, U. Markaida2, C. H. Baxter1, B. A. Block1, A. Boustany1, L. Zeidberg1, K. Reisenbichler3, B. Robison3, G. Bazzino4, C. Salinas4 Marine Ecology Progress Series 324: 1-17, 2006
08/16/2006 Migratory shearwaters integrate oceanic resources across the Pacific Ocean in an endless summer Scott A. Shaffer, Yann Tremblay, Henri Weimerskirch, Darren Scott, David R. Thompson, Paul M. Sagar, Henrik Moller, Graeme A. Taylor, David G. Foley, Barbara A. Block, and Daniel P. Costa The Proceedings of the National Academy of Sciences USA 103: 12799-12802, 2006
04/27/2006 Oceanographic characteristics of biological hot spots in the North Pacific: A remote sensing perspective. Palacios, D.M., S.J. Bograd, D.G. Foley, and F.B. Schwing Deep-Sea Research II 53(3-4):250-269, doi:10.1016/j.dsr2.2006.03.004.
03/24/2006 Interpolation of animal tracking data in a fluid environment Tremblay, Y., Shaffer, S.A., Fowler, S.L., Kuhn, C.E., McDonald, B.I., Weise, M.J., Bost, C-A., Weimerskirch, H., Crocker, D.E., Goebel M.E., Costa, D.P. The Journal of Experimental Biology 209: 128-140, 2006
2005 A census of Tehuantepec and Papagayo eddies in the northeastern tropical Pacific Palacios, D. M., and S. J. Bograd Geophysical Research Letters 32: L23606, 2005
10/10/2005 Bioenergetics and diving activity of internesting leatherback turtles Dermochelys coriacea at Parque Nacional Marino Las Baulas, Costa Rica Wallace, B.P., Williams, C.L., Paladino, F.V., Morreale, S.J., Lindstrom R.T., Spotila, J.R. The Journal of Experimental Biology 208: 3873-3884, 2005
10/07/2005 Satellite Tagging and Cardiac Physiology Reveal Niche Expansion in Salmon Sharks Weng, K. C., Landiera, A., Castilho, P. C., Holts, D. B., Morrissette, J. M., Schallert, R. J., Goldman, K. J., and Block, B. A. Science 310: 104-106, 2005
05/26/2005 Comparison of light- and SST-based geolocation with satellite telemetry in free-ranging albatrosses Shaffer, S.A., Tremblay, Y., Awkerman, J.A., Henry, R.W., Teo, S.L.H., Anderson, D.J., Croll, D.A., Block, B.A., Costa, D.P. Marine Biology 147: 833-843, 2005
05/16/2005 Physiological Ecology in the 21st Century: Advancements in Biologging Science Block, B.A. Integrative and Comparative Biology 45:305–320, 2005
04/28/2005 Electronic tagging and population structure of Atlantic bluefin tuna Block, B.H., Teo, S.L.H., Walli, A., Boustany, A., Stokesbury, M.J.W., Farwell, C.J., Weng, K.C., Dewar, H., Williams, T.D. Nature 434: 1121-1127, 2005
03/01/2005 Tagging Studies on the jumbo squid (Dosidicus gigas) in the Gulf of California, Mexico Markaida Rosenthal, J. J. C., and Gilly, W. F. Fishery Bulletin 103:219-226, 2005
2004 When does physiology limit the foraging behavoir of freely diving mammals? Costa, D.P., Kuhn, C.E., Weise, M.J., Shaffer, S.A., Arnould, J.P.Y. International Congress Series 1275: 359-366 (2004)

Annex 5: Tagging of Pacific Pelagics

Shaffer, Scott; Costa, Dan Tracking Ocean Wanderers: Results from the Global Procellariiform Tracking Workshop, 1–5 September, 2003, BirdLife International
2004 Regional Summaries: North Pacific Shaffer, Scott; Costa, Dan; Suryan, Rob; Hyrenbach, David Tracking Ocean Wanderers: Results from the Global Procellariiform Tracking Workshop, 1–5 September, 2003, BirdLife International
2004 Annex B - A Database for the Study of Marine Mammal Behaviour: A Tool to Define Their Critical Habitat and Behaviour Costa, Dan; Shaffer, Scott Tracking Ocean Wanderers: Results from the Global Procellariiform Tracking Workshop, 1–5 September, 2003, BirdLife International
2004 On the seasonal and interannual migrations of the transition zone chlorophyll front Bograd, S. J., Foley, D. G., Schwing, F. B., Wilson, C., Laurs, R. M., Polovina, J. J., Howell, E. A. and Brainard, R. E. Geophysical Research Letters 31, 2004
12/30/2004 Validation of geolocation estimates based on light level and sea surface temperature from electronic tags Teo, S.L.H., Boustany, A., Blackwell, S., Walli, A.,Weng, K.C., Block, B.A. Marine Ecology Progress Series 283: 81–98, 2004
10/20/2003 Diel vertical migration of the bigeye thresher shark (Alopias superciliosus), a species possessing orbital retia mirabilia Weng, K.C., Block, B.A. Fisheries Bulletin 102: 221-229, 2004
10/15/2003 Field physiology: Physiological insights from animals in nature Costa, D.P., Sinervo, B. Annual Reviews of Physiology 66: 209-238, 2003
09/02/2003 Insights into young of the year white shark, Carcharodon carcharias, behavior in the Southern California Bight Dewar, H., Domeier, M., Nasby-Lucas, N. Environmental Biology of Fishes 70: 133–143, 2004.
05/06/2003 Revealing Pelagic Habitat Use: The Tagging of Pacific Pelagics Program Block, B.A., Costa, D.P., Boehlert, G.W., Kochevar, R.E. Oceanologica Acta 25: 255–266, 2003
01/03/2002 Satellite tagging: Expanded niche for white sharks Boustany, A.M., Davis, S.F., Pyle, P., Anderson, S.D., Le Boeuf, B.J., Block, B.A. Nature, Vol. 415: 35 - 36, 2002
11/01/2001 Autonomous Pinniped Environmental Samples: Using Instrumented Animals as Oceanographic Data Collectors. Boehlert, G.W., Costa, D.P., Crocker, D.E., Green, P., O’Brien, T., Levitus, S., LeBoeuf, B.J. Journal of Atmosphere and Ocean Technology 18: 1882-1893, 2001
08/17/2001 Migratory movements, depth preferences and thermal biology of Atlantic bluefin tuna Block, B.A., Dewar, H., Blackwell, S.B., Williams, T., Prince, E. Boustany, A.M., Farwell, C., D. J. Fudge, D. J., Seitz, A Science 293: 1310-1314, 2001
10/09/2000 Respiration and Heart rate at the surface between dives in northern elephant seals LeBoeuf, B.J., Crocker, D.E., Grayson, J., Gedamke, J., Webb, J.M., Blackwell, S.B. and Costa, D.P. Journal Experimental Biology 203: 3265-3274, 2000
12/01/1999 The role of physiology in the behavior of diving mammals: Insights from animals in nature Costa, D. P. European Undersea Baromedical Society, Proceedings 99: 233-239, 1999
08/01/1998 A new satellite technology for tracking the movements of Atlantic bluefin tuna Block, B.A., H. Dewar, C. Farwell, and E.D. Prince Proceedings National Academy Sciences USA, 95: 9384-9389, 1998