New genus of dorudontine archaeocete (Cetacea) from the middle-to-late Eocene
of South Carolina.
Uhen, M.D., and P.D. Gingerich .....................................................................................1

Collisions between ships and whales.
Laist, D.W., A.R. Knowlton, J.G. Mead, A.S. Collet, and M. Podesta...........................35

Photographic identification of northern bottlenose whales (Hyperoodon ampullatus):
sources of heterogeneity from natural marks.
Gowans, S., and H. Whitehead ......................................................................................76

Two approaches to compressing and interpreting time-depth information as collected
by time-depth recorders and satellite-linked data recorders.
Fedak, M.A., P. Lovell, and S.M. Grant.........................................................................94

A reassessment of the impact of the exxon valdez oil spill on harbor seals (Phoca
vitulina richardsi) in Prince William Sound, Alaska.
Hoover-Miller, A., K.R. Parker, and J.J. Burns.............................................................111

Counting steller sea lion pups in Alaska: an evaluation of medium-format, color
aerial photography.
Snyder, G.M., K.W. Pitcher, W.L. Perryman, and M.S. Lynn...................................... 136

Sex differences in body size and body condition of California sea lion (Zalophus
californianus) pups from the Gulf of California.
Luque, S.P., and D. Aurioles-Gamboa...........................................................................147

First records of the spectacled porpoise Phocoena dioptrica in continental Australian
waters.
Evans, K., C. Kemper, and M. Hill................................................................................161

Sighting of a single humpback dolphin (Sousa sp.) along the Mediterranean coast
of Israel.
Kerem, D., O. Goffman, and E. Spanier.........................................................................170
 

A juvenile Hector's beaked whale, Mesoplodon hectori (Gray 1871), without
functional throat grooves, plus notes on endoparasites (Cetacea: Ziphiidae).
Baker, A.N., P.J. Duignan, R.J. De B. Norman, and A.L. Van Helden............................171

Photo-identification of sperm whales at Bleik Canyon, Norway.
Ciano, J.N., and R. Huele...............................................................................................175

First description of humpback whale song from Antongil Bay, Madagascar.
Razafindrakoto, Y., H.C. Rosenbaum, and D.A. Helweg.................................................180

Gray whales' mid-spring feeding at Bahia de Los Angeles, Gulf of California, Mexico.
Sanchez-Pacheco, J., A. Velazquez-Hanckin, and R. De Silva-Davila .............................186

A platform for continuous behavioral and acoustic observation of free-ranging marine
mammals: overhead video combined with underwater audio.
Nowacek, D.P., P.L. Tyack, and R.S. Wells...................................................................191

BOOKS: Reviews ..........................................................................................................200

LETTERS:  .................................................................................................................... 206

GUIDE FOR AUTHORS................................................................................................227
 

Behavior and ecology of the Atlantic white-sided dolphin (Lagenorhynchus
acutus) in coastal New England waters.
Weinrich, M.T.,  C. R. Belt and D. Morin ...................................................................... 231

Coastal bottlenose dolphins from southeastern Australia are Tursiops aduncus
according to sequences of the mitochondrial DNA control region.
Moller, L. M. and L. B. Beheregaray ............................................................................. 249

Geographical variation of the parasite, Phyllobothrium delphini (Cestoda),  in Dall's
porpoise, Phocoenoides dalli, in the northern North Pacific, Bering Sea, and Sea of
Okhotsk.
Walker, W. A. ................................................................................................................ 264

Correcting aerial survey counts of harbor seals (Phoca vitulina richardsi) in
Washington and Oregon.
Huber, H.R., S. J. Jeffries, R. F., Brown, R. L. DeLong and G. VanBlaricom ..............  276

An estimation of carrying capacity for sea otters along the California coast.
Laidre, K. L. R. J. Jameson and D. P. DeMaster ...........................................................  294

Laboratory digestion of prey and interpretation of walrus stomach contents.
Sheffield, G., F. H. Fay, H. Feder and B. P. Kelly ......................................................... 310

Reproduction in female manatees observed in Sarasota Bay, Florida.
Koelsch, J. K. ................................................................................................................. 331

NOTES

Killer whales attacking schooling fish: Why force herring from deep water to
the surface?
Nøttstad, L, and T. Similä .............................................................................................. 343

Conversion factors for binoclular reticles.
Kinzey, D. and T. Gerrodette ......................................................................................... 353

An observation of parturition in a stranded Kogia breviceps
Huckstadt, L. and T Antezana ........................................................................................  362

The North Island Hector's dolphin is vulnerable to extinction.
Dawson, S., F. Pilcher, E. Slooten, K. russell and C. S. Baker .....................................  366

Observation of male-biased sex ration in the Gulf of St. Lawrence fin whales
(Balaenoptera physalus): Temporal, geographical, or group structure
segregation?
Berubé, M., C. Berchok and R. Sears ............................................................................  371

Pinniped survival in captivity: Annual survival rates of six species.
Roberts, S. P. and D. P. DeMaster ................................................................................  381

Vocal rates and social contest in male South American sea lions.
Fernández-Juricic, E., C. Campagna, V. Enriquez and C. L. Ortiz ................................  387

Historical and recent colonization of the South Farallon Islands, California, by
northern fur seals (Callorhinus ursinus).
Pyle, P. D., J., Long, J. Schonewald, R. E. Jones and J. Roletto ..................................  397

Detecting bioluminescence with an irradiance time-depth recorder deployed on
southern elephant seals.
Campagna, C., J. Dignani, S. B. Blackwell and M. R. Marin ........................................ 402

Survivorship of captive southern sea otters.
Jones, B. A. and D. P. DeMaster ................................................................................... 414

Distribution and current status of the West African manatee (Trichechus
senegalensis) in Guinea-Bissau.
Silva, M. A. and A. Araújo ........................................................................................... 418

Book Reviews .............................................................................................................. 425

Letters ........................................................................................................................... 427

Erratum ......................................................................................................................... 440

Status and ecology of Sotalia fluviatilis in the Cayos Miskito Reserve, Nicaragua.
Edwards, H. H. and G. D. Schnell ………………………………………...............… 445

Status, relationships, and distribution of Mesoplodon bowdoini Andrews, 1908
(Cetacea: Ziphiidae).
Baker, A. N. …………………................................................................………...... 473

Killer whale predation on sperm whales: observations and implications.
Pitman, R. L.,  L. T. Ballance, S. I. Mesnick and S. J. Chivers…............................…. 494

No evidence of accommodation in the eyes of the bottlenose dolphin,
Tursiops  truncatus.
Litwiler, T. L. and T. W. Cronin ………................................................................…. 508

Shark attacks on bottlenose dolphins (Tursiops aduncus) in Shark Bay,
Western Australia: attack rate, bite scar frequencies, and attack seasonality.
 Heithaus, M. R. ………........................................................………………………. 526

Unobserved kill of nursing dolphin calves in a tuna purse-seine fishery.
Archer, F., T. Gerrodette, A. Dizon, K. Abella, and A. Southern ............................… 540

Distribution of killer whale pods in Prince William Sound, Alaska 1984–1996.
Scheel, D., C. O. Matkin and E. Saulitis ………................................................…….555

Interactions of singing humpback whales with other males.
Darling, J. D. and M. Bérubé ….............................................................................… 570

Pupping phenology and demography of harbor seals (Phoca vitulina richardsi)
on Tugidak Island, Alaska.
Jemison, L. A. and B. P. Kelly ………….............................................................….. 585

Comparison of methods used to estimate numbers of walruses on sea ice.
Udevitz, M. S., J. R. Gilbert and G. A. Fedoseev ……......................................……. 601

Summer diving behavior of male walruses in Bristol Bay, Alaska.
Jay, C. V., S. D. Farley and G. W. Garner .............................................................… 617

Stock structure of sea otters (Enhydra lutris kenyoni) in Alaska.
Gorbics, C. S. and J. L. Bodkin ……………………………………….................… 632

NOTES

Biological observations of an unidentified mesoplodont whale in the eastern tropical
Pacific and probable identity: Mesoplodon peruvianus.
Pitman, R. L. and M. S. Lynn .....................................................................................648

Practical use of multiplex flourescent PCR for cetacean sex identification.
Abe, H., M. Goto, L. A. Pastene, K. Dewa and E. Naito .......................................... 657

BOOK REVIEWS ................................................................................................... 665

NEWS ..................................................................................................................... 672

Short-term effects of boat traffic on bottlenose dolphins, Tursiops truncatus, in
Sarasota Bay, Florida
Nowacek, S. M, R. S. Wells and A. R. Solow ........................................................ 673

Increased avoidance of swimmers by wild bottlenose dolphins (Tursiops truncatus)
due to long-term exposure to swim-with-dolphin tourism
Constantine, R. ....................................................................................................... 689

Characterization of beaked whale (Ziphiidae) and sperm whale (Physeter
macrocephalus) summer habitat in the shelf-edge and deeper whaters off the
northeast U.S.
Waring, G. T., Hamacaki, T., Sheehan, D., Wood, G. and Baker, S........................  703

Direct estimation of within-group heterogeneity in photo-identification of sperm
whales
Whithead, H........................................................................................................... 718

Morphology of the eye and surround structures of the bowhead whale, Balaena
mysticetus
Qian Zhu, Hillman, D. J. and Henk, W. G. .............................................................. 729

Acoustic detections of singing humpback whales in deep waters off the British Isles
Charif, R. A., Clapham, P. J. and Clark, C. W. ....................................................... 751

Movements and population structure of humpback whales in the North Pacific
Calambokidis, J., Steiger, G. H., Straley, J. M., Herman, L. M., Cerchio, S.,
Salden, D. R., Urban R., J., Jacobson, J. K., Ziegesar, O. v., Balcomb, K. C.,
Gabrielle, C. M., Dahlheim, M. E., Uchida, S., Ellis, G., Miyamura, Y.,
Ladron de Guevara P., P., Yamaguchi, M., Sato, F., Mizroch, S. A., Schlender, L.,
Rasmussen, K., Barlow, J. and Quinn, T. J. II ......................................................... 769

Seal responses to airgun sounds during summer seismic surveys in the Alaskan
Beaufort Sea
Harris, R. E., Miller, G. W. and Richardson, W. J. .................................................. 795

Diving behavior of subadult and adult harbor seals in Prince William Sound, Alaska
Frost, K.J, Simpkins, M. A. and Lowry, L. F. ......................................................... 813

Movements of satellite-tagged subadult and adult harbor seals in Prince William
Sound, Alaska
Lowry, L. F., Frost, K. J., Ver Hoer, J. M. and DeLong, R. A. ............................... 835

Ongotenetic and seasonal variation in blood parameters in southern elephant seals
Lewis, M., Campagna, C., Uhart, M. and Ortiz, C. L. ............................................. 862

Investment in sons and daughters by southern elephant seals, Mirounga leonina,
at Marion Island
Wilkinson, I. S. and Aarde, R. J. van ....................................................................... 873

Diet of ringed seals (Phoca hispida) on the east and west sides fo the North Water
Polynya, northern Baffin Island
Holst, M., Stirling, I. and Hobson, K. A. .................................................................. 888

Three-dimensional diving behaviors of ringed seals (Phoca hispida)
Simpkins, M. A., Kelly, B. P and Wartzok, D. ......................................................... 909

Diet of weaned pups and seasonal variations in body condition of juvenile Barents
Sea harb seals Phoca groenlandica
Nilssen, K. T, Haug, T. and Lindblom, C. ................................................................ 926

NOTES

The enigma of harbor porpoise presence in the Mediterranean Sea
Frantzis, A., Gordon, J., Hassidis, G., and Komnenou, A. .......................................  937

Evidence for signature whistle production by a Pacific humpback dolphin, Sousa
chinensis
Van Parijs, S. M. and Corkeron, P. J. .....................................................................  944

A new technique for deploying satellite transmitters on baleen whales: Tracking a
blue whale (Balaenoptera musculus) in the North Atlantic
Heide-Jorgensen, M. P., KLeivane, L., Oien, N., Laidre, K. L. and Jensen, M. V. ... 949

Are gray whales hitting "K" hard?
Moore, S. E., Urban R., J., Perryman, W. L., Gulland, F., Perez-Cortes M., H,
Wade, P. R., Rojas-Bracho, L. and Rowles, T. ........................................................ 954

BOOKS

Reviews ................................................................................................................... 959

MEMORIES

Stuart Innes ............................................................................................................. 965

ERRATA ................................................................................................................ 974

INDEX ................................................................................................................... 975