contents mammals · d. n. orbach & t. kirchner: armed escorts: dusky dolphin (lagenorhynchus...

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4 Aquatic Mammals Supported through Joint Sponsorship by the European Association for Aquatic Mammals, the Alliance of Marine Mammal Parks and Aquariums, and the International Marine Animal Trainers’ Association Founded by EAAM in 1974 YEARS 1974-2014 Aquatic Mammals Volume 40, Number 3, 2014 Aquatic Mammals, Volume 40, Number 3, 2014 ISSN 0167-5427 Contents L. D. Figueiredo & S. M. Simão: Bryde’s Whale (Balaenoptera edeni) Vocalizations from Southeast Brazil .... 225 R. A. Kastelein, J. Schop, R. Gransier, N. Steen, & N. Jennings: Effect of Series of 1 to 2 kHz and 6 to 7 kHz Up-Sweeps and Down-Sweeps on the Behavior of a Harbor Porpoise (Phocoena phocoena) .... 232 A. Ghoul & C. Reichmuth: Hearing in Sea Otters (Enhydra lutris): Audible Frequencies Determined from a Controlled Exposure Approach ............................................ 243 R. S. Wells, C. R. Smith, J. C. Sweeney, F. I. Townsend, D. A. Fauquier, R. Stone, J. Langan, L. H. Schwacke, & T. K. Rowles: Fetal Survival of Common Bottlenose Dolphins (Tursiops truncatus) in Sarasota Bay, Florida ......................................................... 252 A. Kügler & D. N. Orbach: Sources of Notch and Scar Patterns on the Dorsal Fins of Dusky Dolphins (Lagenorhynchus obscurus) ............................................................... 260 M. B. Hanson & W. A. Walker: Trans-Pacific Consumption of Cephalopods by North Pacific Killer Whales (Orcinus orca) .............................................................. 274 D. N. Orbach & T. Kirchner: Armed Escorts: Dusky Dolphin (Lagenorhynchus obscurus) Interactions with Octopuses (Pinnoctopus cordiformis) in New Zealand ...................................... 285 J. Latusek-Nabholz, D. Fertl, L. Blair, & C. Ferrer: A Rare Observation of Bottlenose Dolphins (Tursiops truncatus) with a Whale Shark (Rhincodon typus) off the Florida Panhandle, Gulf of Mexico..... 293 C. R. Weir & I. Nicolson: Depredation of a Sport Fishing Tournament by Rough-Toothed Dolphins (Steno bredanensis) off Angola ............................................................ 297 A. M. Morris & J. M. Terhune: Incomplete Detection of Echolocation Click Train Patterns Compromises the Use of Single Porpoise Detectors in Studying Harbour Porpoise (Phocoena phocoena) Behaviour ............................................................................. 305 L. Beirão, M. Cantor, L. Flach, & C. A. B. Galdino: Performance of Computer-Assisted Photographic Matching of Guiana Dolphins (Sotalia guianensis) ................................. 313 Aquatic Mammals Aquatic Mammals publishes hard copies on-demand, CDs, and online peer-reviewed scientific articles related to marine mammals (whales, dolphins, seals, fur seals, sea lions, walrus, dugongs, manatees, sea otters, and polar bears). Topics of publication on both captive animals and wild marine mammals include aspects of husbandry; behavior; conservation; veterinary medicine; anatomy; physiology; training; population trends; and the effects of pollution, climate change, and noise. In addition, Aquatic Mammals has the Historical Perspectives feature, which includes essays and high definition DVDs of interviews with prominent marine mammal scientists. The journal also publishes Book Reviews. Copyright and Editor: Aquatic Mammals Journal, attn: Kathleen M. Dudzinski Co-Editors: Shane B. Kanatous, David A. S. Rosen, Deirdre Yeater, and Elizabeth Henderson PO Box 711, Old Mystic, CT 06372-0711, USA Prepared and published by Document and Publication Services, Western Illinois University, Macomb, IL 61455, USA

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Page 1: Contents Mammals · D. N. Orbach & T. Kirchner: Armed Escorts: Dusky Dolphin (Lagenorhynchus obscurus) ... Manuel García Hartmann, Marineland Antibes, France. Heidi Harley,

4

AquaticMammals

Supported through Joint Sponsorship by the European Association for Aquatic Mammals,

the Alliance of Marine Mammal Parks and Aquariums, and the International Marine Animal Trainers’ Association

Founded by EAAM in 1974

Years1974-2014

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Mam

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Aquatic Mammals, Volume 40, Number 3, 2014 ISSN 0167-5427

ContentsL. D. Figueiredo & S. M. Simão: Bryde’s Whale (Balaenoptera edeni) Vocalizations from Southeast Brazil. . . .225

R. A. Kastelein, J. Schop, R. Gransier, N. Steen, & N. Jennings: Effect of Series of 1 to 2 kHz and 6 to 7 kHz Up-Sweeps and Down-Sweeps on the Behavior of a Harbor Porpoise (Phocoena phocoena) . . . .232

A. Ghoul & C. Reichmuth: Hearing in Sea Otters (Enhydra lutris): Audible Frequencies Determined from a Controlled Exposure Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .243

R. S. Wells, C. R. Smith, J. C. Sweeney, F. I. Townsend, D. A. Fauquier, R. Stone, J. Langan, L. H. Schwacke, & T. K. Rowles: Fetal Survival of Common Bottlenose Dolphins (Tursiops truncatus) in Sarasota Bay, Florida . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .252

A. Kügler & D. N. Orbach: Sources of Notch and Scar Patterns on the Dorsal Fins of Dusky Dolphins (Lagenorhynchus obscurus). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .260

M. B. Hanson & W. A. Walker: Trans-Pacific Consumption of Cephalopods by North Pacific Killer Whales (Orcinus orca). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .274

D. N. Orbach & T. Kirchner: Armed Escorts: Dusky Dolphin (Lagenorhynchus obscurus) Interactions with Octopuses (Pinnoctopus cordiformis) in New Zealand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .285

J. Latusek-Nabholz, D. Fertl, L. Blair, & C. Ferrer: A Rare Observation of Bottlenose Dolphins (Tursiops truncatus) with a Whale Shark (Rhincodon typus) off the Florida Panhandle, Gulf of Mexico. . . . .293

C. R. Weir & I. Nicolson: Depredation of a Sport Fishing Tournament by Rough-Toothed Dolphins (Steno bredanensis) off Angola . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .297

A. M. Morris & J. M. Terhune: Incomplete Detection of Echolocation Click Train Patterns Compromises the Use of Single Porpoise Detectors in Studying Harbour Porpoise (Phocoena phocoena) Behaviour. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305

L. Beirão, M. Cantor, L. Flach, & C. A. B. Galdino: Performance of Computer-Assisted Photographic Matching of Guiana Dolphins (Sotalia guianensis) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .313

Aquatic MammalsAquatic Mammals publishes hard copies on-demand, CDs, and online peer-reviewed scientific articles related to

marine mammals (whales, dolphins, seals, fur seals, sea lions, walrus, dugongs, manatees, sea otters, and polar bears). Topics of publication on both captive animals and wild marine mammals include aspects of husbandry; behavior; conservation; veterinary medicine; anatomy; physiology; training; population trends; and the effects of pollution,

climate change, and noise. In addition, Aquatic Mammals has the Historical Perspectives feature, which includes essays and high definition DVDs of interviews with prominent marine mammal scientists. The journal also publishes Book Reviews.

Copyright and Editor: Aquatic Mammals Journal, attn: Kathleen M. DudzinskiCo-Editors: Shane B. Kanatous, David A. S. Rosen, Deirdre Yeater, and Elizabeth Henderson

PO Box 711, Old Mystic, CT 06372-0711, USA

Prepared and published by Document and Publication Services, Western Illinois University, Macomb, IL 61455, USA

Page 2: Contents Mammals · D. N. Orbach & T. Kirchner: Armed Escorts: Dusky Dolphin (Lagenorhynchus obscurus) ... Manuel García Hartmann, Marineland Antibes, France. Heidi Harley,

Established by the EAAM in 1974

Aquatic MammalsThe European Association for Aquatic Mammals (EAAM), the Alliance of Marine Mammal Parks and Aquariums (AMMPA), and the International Marine Animal Trainers’ Association (IMATA)

jointly sponsor Aquatic Mammals (ISSN 0167-5427), published four times per year.

Managing EditorKathleen M. Dudzinski, Ph.D.

PO Box 711, Old Mystic, Connecticut 06372-0711, USAE-mail: [email protected] or [email protected], Tel: +1 (860) 514-4704

Co-EditorsShane B. Kanatous, Ph.D., Department of Biology, Colorado State University

E-mail: [email protected]

David A. S. Rosen, Ph.D., Marine Mammal Research Unit, University of British ColumbiaE-mail: [email protected]

Deirdre Yeater, Ph.D., Sacred Heart UniversityE-mail: [email protected]

Elizabeth Henderson, Ph.D., National Marine Mammal Foundation, San Diego, CaliforniaE-mail: [email protected]

Book Review EditorMaryEllen Mateleska, Mystic Aquarium

E-mail: [email protected]

Editors EmeritiWillem H. Dudok van Heel, Victor J. A. Manton, Paul E. Nachtigall, Jeanette A. Thomas

Editorial BoardArne Bjørge, Institute of Marine Research, Gaustadalleen 21, 0349 Oslo, NorwayManuel E. dos Santos, Instituto Superior de Psicologia Aplicada, Lisboa, Portugal

Manuel García Hartmann, Marineland Antibes, FranceHeidi Harley, Division of Social Sciences, New College of Florida, Sarasota, Florida, USA

A. Rus Hoelzel, School of Biological and Biomedical Sciences, University of Durham, Durham, UKChristina Lockyer, North Atlantic Marine Mammal Commission, Tromsø, Norway

Lee A. Miller, Institute of Biology, University of Southern Denmark, Odense, DenmarkPaul E. Nachtigall, Hawaii Institute of Marine Biology, Kailua, Hawaii, USA

Giuseppe Notarbartolo di Sciara, Tethys Research Institute, Milano, ItalyDan Odell, Hubbs-Sea World Research Institute, Orlando, Florida, USA

Grey Stafford, Wildlife World Zoo, Litchfield Park, Arizona, USA

Publication and Administrative Services Document and Publication Services (DPS), Western Illinois University, Macomb, Illinois 61455, USA

Cover Photo CreditTop left: Breaching Bryde’s whale (Balaenoptera edeni) off Rio de Janeiro city coast

Photo Credit: Liliane Lodi, Ilhas do Rio ProjectLower right: Odin, a male southern sea otter (Enhydra lutris), rests at the surface of his pool at the Long Marine

Laboratory in Santa Cruz, California. Odin was one of the four sea otter subjects to participate in the University of California Santa Cruz study (U.S. Fish and Wildlife Service #MA 186914-1) investigating the hearing range of sea otters.

Photo Credit: Ari FriedlaenderIn celebration of Aquatic Mammals’ 40th anniversary, two past covers were also

used for the cover to give a sample of the types of subjects focused on in the journal.

Aquatic MammalsBoard of the European Association for Aquatic Mammals (EAAM)

www.eaam.orgPresident: Arlete Sogorb, Lisbon Zoo, [email protected]

President-Elect: Brad Andrews, Sea World Parks & Entertainment, [email protected] President: Jesús Fernández Morán, Zoo Aquarium Madrid, Parques Reunidos, S.A.,

past_ [email protected]: Camino Herreros Paris, Mundomar, [email protected]: Camino Herreros Paris, Mundomar, [email protected]

Information Committee: Ann-Louise Jensen and Javier Almunia, [email protected]

Alliance of Marine Mammal Parks and Aquariums (AMMPA)www.ammpa.org

Executive Director: Kathleen DezioE-mail: [email protected]

Board of DirectorsPresident: Kevin Willis, Minnesota Zoo, [email protected]

Past President: Billy Hurley, Gulfarium, [email protected] President: Rita Irwin, Dolphin Research Center, [email protected]: Bill Hughes, SeaWorld Orlando, [email protected]

Secretary: Suzanne Gendron, Ocean Park, [email protected]: Stewart Clark, Discovery Cove, [email protected]: Mike Muraco, Six Flags Discovery Kingdom, [email protected]

International Marine Animal Trainers’ Association (IMATA)www.imata.org

c/o John G. Shedd Aquarium, 1200 S. Lake Shore Drive, Chicago, Illinois 60605, USABoard of Directors

President: Eric Gaglione, Georgia Aquarium, [email protected]: Bill Wolden, Dolphin Quest, [email protected]

Past President: Shelley Wood, ABC Animal Training & Dolphin Discovery, [email protected]: Jennifer Leach, SeaWorld San Diego, [email protected]

Treasurer: Robert Roozendall, Six Flags Discovery Kingdom, [email protected] Vice President: Michele Sousa, Aquarium of the Pacific, [email protected]

Second Vice President: Kelly Clark, SeaWorld Orlando, [email protected] Vice President: Teri Corbett, Atlantis, [email protected]

Director-at-Large: Patty Schilling, New England Aquarium, [email protected]

For subscriptions, instructions to authors, abstracts of previous issues, publication fees, hard copies, back issues, CDs, and Historical Perspectives DVDs, see the Aquatic Mammals website:

www.aquaticmammalsjournal.org

For details about the online versions of Aquatic Mammals, see the following websites:Aquatic Mammals: www.aquaticmammalsjournal.org

ProQuest: www.proquest.com (specific to library subscribers)