A method to collect and process skin biopsies for cell culture from free-ranging gray whales
(Eschrichtius robustus).
ELIZABETH A. MATHEWS, STEVEN KELLER AND DAVID B. WEINER ..........................1

The assessment of competition between seals and commercial fisheries in the
North Sea and the Antarctic.
JOHN HARWOOD AND JOHN P. CROXALL .....................................................................13

Implications from physiological studies of marine mammals.
ROBERT ELSNER AND LORI L. WICKHAM ......................................................................34

Behavioral and physiological measurements of maternal investment in the
Steller sea lion, Eumetopias jubatus.
LESLEY V. HIGGINS, DANIEL P. COSTA, ANTHONY C. HUNTLEY
AND BURNEY J. LEBOEUF ..................................................................................................44

NOTES

Observations of migratory transits of two humpback whales.
PHILLIP J. CLAPHAM AND DAVID K. MATTILA ..............................................................59

Observations on the behavior and ventilation cycles of the vaquita, Phocoena sinus.
GREGORY K. SILBER, MICHAEL W. NEWCOMER
AND GWENDOLYN J. BARROS ..........................................................................................62

Presence of solid food in a young calf killer whale (Orcinus orca).
JOHN E. HEYNING ................................................................................................................68

Fixed-wing airplane versus helicopter surveys of manatees (Trichechus manatus).
GALEN B. RATHBUN ............................................................................................................71

What shall we call the Weddell and Ross seals?
W. NIGEL BONNER ..............................................................................................................75

LETTERS

Scientific Correspondence .........................................................................................................78

BOOKS

Reviews .....................................................................................................................................79

Right Whales: Past and Present Status. R. L. Brownell, Jr., P. B. Best and
J. H. Prescott, eds., International Whaling Commission, Cambridge, U. K.
Reviewed by Dale W. Rice.

Research on Dolphins. M. M. Bryden and R. Harrison, eds. Clarendon Press, Oxford.
Reviewed by Graham J. B. Ross.

New Books ...............................................................................................................................83

NEWS ......................................................................................................................................85

GUIDE FOR AUTHORS ..........................................................................................................87

APPLICATION FOR MEMBERSHIP .....................................................................................90

Ecotoxicological perspectives in marine mammalogy: research principles
and goals for a conservation policy.
PETER J. H. REIJNDERS ........................................................................................................91

Capacity and mode of PCB metabolism in small cetaceans.
SHINSUKE TANABE, SEIJI WATANABE, HIROSHI KAN
AND RYO TATSUKAWA ...................................................................................................103

A coprological survey of helminth parasites of the Hawaiian monk seal from
the northwestern Hawaiian Islands.
MURRAY D. DAILEY, RICHARD V. SANTANGELO
AND WILLIAM G. GILMARTIN ........................................................................................125

Geographic variation in tooth morphology and dentinal patterns in the
spinner dolphin, Stenella longirostris.
PRISCILLA A. AKIN ..........................................................................................................132

The distribution of white-sided (Lagenorhynchus acutus) and common dolphins
(Delphinus delphis) vs. environmental features of the continental shelf of the
northeastern United States.
LAWRENCE A. SELZER AND P. MICHAEL PAYNE ......................................................141

Ray encounters as a mortality factor in Atlantic bottlenose dolphins (Tursiops truncatus).
MICHAEL T. WALSH, DEKE BEUSSE, GREGORY D. BOSSART,
W. GLENN YOUNG, DANIEL K. ODELL AND GEOFFREY W. PATTON ...................154

NOTES

Preliminary observations on the immobilization of male Atlantic walruses
(Odobenus rosmarus rosmarus) with Telazol.
IAN STIRLING AND BECKY SJARE ...............................................................................163

Longevity, fertility and philopatry of two female southern elephant seals
(Mirounga leonina) at Macquarie Island.
MARK A. HINDELL AND GERALD J. LITTLE ................................................................168

Balaenoptera musculus in the Gulf of Maine.
FREDERICK WENZEL, DAVID K. MATTILA AND PHILLIP J. CLAPHAM .................172

BOOKS

Reviews ................................................................................................................................176

Dolphin Cognition and Behavior: A Comparative Approach.
Ronald J. Schusterman, Jeaneatte A. Thomas and Forrest G. Wood, eds.
1986. Lawrence Erlbaum Associates, Hillsdale, NJ.
Reviewed by Carolyn A. Ristau.

Guide to the Otoliths of the Bony Fishes of the Northeast Atlantic.
Tero Hark"nen. Danbiu ApS. Biological Consultants. Hellrup, Denmark.
Reviewed by Robert L. Brownell, Jr.

NEWS ..................................................................................................................................180

Dynamic response analysis. I. Qualitative estimation of stock status relative
to maximum net productivity level from observed dynamics.
DANIEL GOODMAN .........................................................................................................183

Dynamic response analysis. II. Evaluation of dynamic response analysis
in a simulated no-harvest case.
TIM GERRODETTE ............................................................................................................196

Dynamic response analysis. III. A consistancy filter and application to four
northern elephant seal colonies.
PETER BOVENG, DOUGLAS P. DEMASTER AND BRENT S. STEWART ....................210

Behavioral evidence for hearing through the lower jaw by an echolocating
dolphin (Tursiops truncatus).
RANDALL L. BRILL, MARTHA L. SEVENICH, TIMOTHY J. SULLIVAN,
JANET D. SUSTMAN AND RONALD E. WITT ...............................................................223

Rebuilding seal stocks in the Kattegat-Skagerrak.
MADS-PETER HEIDE-JORGENSEN AND TERO J. HˇRK™NEN ................................231

Zoogeography of Oregon coast marine mammals: the last 3,000 years.
R. LEE LYMAN ...................................................................................................................247

NOTES

Status of dugongs in waters around Palau.
GALEN B. RATHBUN, ROBERT L. BROWNELL, JR.,
KATHERINE RALLS AND JOHN ENGBRING .................................................................265

BOOKS

New Books ...........................................................................................................................271

LETTERS

Scientific Correspondence .....................................................................................................273

MEMORIES

Frederic M. Fairfield..............................................................................................................276

NEWS .................................................................................................................................278

The tapetum fibrosum in the eyes of two small whales.
NINA M. YOUNG, G. MARION HOPE, WILLIAM W. DAWSON
AND ROBERT L. JENKINS ...............................................................................................281

The microscopic and immunohistologic anatomy of the endocrine pancreas
of pygmy and dwarf sperm whales (Kogiidae).
EILEEN DELLNER BROWN, GREGORY D. BOSSART
AND JOHN E. REYNOLDS, III .........................................................................................291

Survivorship patterns in three species of captive cetaceans.
DOUGLAS P. DEMASTER AND JEANNIE K. DERVENAK ..........................................297

Developmental pattern of the bony falx and bony tentorium of spotted dolphins
(Stenella attenuata) and the relationship between degree of development and age.
TAKAO NOJIMA ..............................................................................................................312

Long-term trends in abundance and distribution of manatees (Trichechus manatus)
in the northern Banana River, Brevard County, Florida.
J. A. PROVANCHA AND M. J. PROVANCHA ...............................................................323

Trace metals and methyl mercury: associations and transfer in harp seal
(Phoca groenlandica) mothers and their pups.
R. WAGEMANN, R. E. A. STEWART, W. L. LOCKHART,
B. E. STEWART AND M. POVOLEDO ............................................................................339

NOTES

Debilitation of prey by intense sounds.
R. STUART MACKAY AND JON PEGG ..........................................................................356

BOOKS

Reviews ................................................................................................................................360

The Community Ecology of Sea Otters. Ecological Studies 65.
G. R. VanBlaricom and J. A. Estes, eds. Springer-Verlag, Berlin.
Reviewed by James H. Brown.

LETTERS

Scientific Correspondence .....................................................................................................362

INDEX Volume 4 - 1988 .....................................................................................................363