Marine Mammal Sci (1998)
(...) It has been hypothesized that Dall's porpoises forage mostly at night or at dawn, because porpoises taken in the morning tended to have a larger amount of food remains…
Monitoring a rehabilitated harbor porpoise using satellite telemetry
Westgate, Andrew J.; Read, Andrew J.; Cox, Tara M.; Schofield, T. David; Whitaker, Brent R.; Anderson, Kurt E.
Marine Mammal Sci (1998)
(...) Each year between February and May, immature harbor porpoises (Phocoena phocoena) strand along the mid-Atlantic coast of the United States (Haley and Read 1993). Occasionally, harbor porpoises strand alive,…
The effects of acoustic alarms on the behavior of harbor porpoises (Phocoena phocoena) in a floating pen
Kastelein, R. A.; Rippe, H. T.; Vaughan, N.; Schooneman, N. M.; Verboom, W. C.; De Haan, D.
Marine Mammal Sci (2000)
In an attempt to test the effectiveness of sounds in deterring harbor porpoises from nets and reducing porpoise bycatch in gill net fisheries, two harbor porpoises, kept in a large…
Diving behavior and swimming speed of a free-ranging harbor porpoise, Phocoena phocoena
Otani, Seiji; Naito, Yasuhiko; Kato, Akiko; Kawamura, Akito
Marine Mammal Sci (2000)
(...) Our understanding of cetacean diving behavior has recently increased (Westgate et al. 1995, Heide-Jorgensen and Dietz 1995, Davis et al. 1996). However, there are few reports which measured swim…
Observations on the behavior and ventilation cycles of the vaquita, Phocoena sinus
Silber, Gregory K.; Newcomer, Michael W.; Barros, Gwendolyn J.
Marine Mammal Sci (1988)
(...) The vaquita or Gulf of California harbor porpoise, Phocoena sinus Norris and McFarland 1958, has been observed rarely (Wells et al. 1981, Brownell 1983, Brownell 1986). Although a number…
An unusual aggregation of harbor porpoises (Phocoena phocoena)
Hoek, Wyb
Marine Mammal Sci (1992)
(...) The harbor porpoise (Phocoena phocoena) is found in coastal temperate and subarctic waters of the Northern Hemisphere (Gaskin et al. 1974). Although the species’ biology has been well documented…
Segregative migration of Dall’s porpoise (Phocoenoides dalli) in the Sea of Japan and Sea of Okhotsk
Amano, Masao; Kuramochi, Toshiaki
Marine Mammal Sci (1992)
Dall's porpoises from the Sea of Japan population taken by a dolphin fishery vessel were examined. Estimated body lengths at sexual maturity were similar to those for the truei-type population…
Swimming behaviors and speeds of wild Dall’s porpoises (Phocoenoides dalli)
Law, T. C.; Blake, R. W.
Marine Mammal Sci (1994)
(...) Several researchers have obtained accurate speed data on unconfined cetaceans using a variety of techniques. Hui (1989) analyzed video tapes of Delphinus delphis and Stenella attenuata filmed from a…
Echolocation rates of two harbor porpoises (Phocoena phocoena)
Akamatsu, Tomonari; Hatakeyama, Yoshimi; Kojima, Takahito; Soeda, Hideo
Marine Mammal Sci (1994)
The rate of occurrence of click trains of two harbor porpoises (Phocoena phocoena) were counted during 14 nights. We developed an echolocation signal detection system that was harnessed to a…
Harbour porpoise (Phocoena phocoena) presence patterns at an aquaculture cage site in the Bay of Fundy, Canada
Haarr, Marthe L.; Charlton, Laura D.; Terhune, John M.; Trippel, Edward A.
Aquatic Mammals (2009)
Finfish aquaculture is a prominent industry in the Bay of Fundy, Canada. The distribution of harbour porpoise (Phocoena phocoena) in the Bay during the summer and fall may be impacted…