Marine Mammal Sci (1997)
Abstract currently unavailable
Target discrimination by an echolocating finless porpoise, Neophocaena phocaenoides
Nakahara, Fumio; Takemura, Akira; Koido, Takashi; Hiruda, Hisoka
Marine Mammal Sci (1997)
The ability of a finless porpoise (Neophocaena phocaenoides) to discriminate the material and size of a target by echolocation was investigated. The porpoise was required to choose a standard target…
Diurnal feeding by Dall’s porpoise, Phocoenoides dalli
Amano, Masao; Yoshioka, Motoi; Kuramochi, Toshiaki; Mori, Kyoichi
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…
Geographical variation of the harbor porpoise, Phocoena phocoena, evaluated by discriminant analysis
Gao, Anli; Gaskin, D. E.
Marine Mammal Sci (1998)
(...) In the preceding communication K. A. Tolley states (twice) that Gao and Gaskin (1996) committed “serious interpretive errors that neither support their results nor the recent literature.” Needless to…
Assessing the population structure of the harbor porpoise (Phocoena phocoena) by discriminant analysis
Tolley, Krystal A.
Marine Mammal Sci (1998)
(...) Gaskin (1984, 1992) suggested that harbor porpoises in the northwestern Atlantic are partitioned into three subpopulations: Bay of Fundy/Gulf of Maine, Eastern Newfoundland, and Gulf of St. Lawrence (see…
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,…
Hematology values of wild harbor porpoises (Phocoena phocoena) from the Bay of Fundy, Canada
Koopman, Heather N.; Westgate, Andrew J.; Read, Andrew J.
Marine Mammal Sci (1999)
Clinical hematology values were determined for 29 harbor porpoises (Phocoena phocoena) released from herring weirs in the Bay of Fundy, Canada. Erythrocyte values exhibited narrow ranges, but there was a…
Mitochondrial DNA variation in the critically endangered vaquita Phocoena sinus Norris and MacFarland, 1958
Rosel, Patricia E.; Rojas-Bracho, Lorenzo
Marine Mammal Sci (1999)
The vaquita, Phocoena sinus, is one of two critically endangered cetacean species, and is listed as an endangered species in both the United States and Mexico. These listings result from…
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…
Harbor porpoise (Phocoena phocoena) abundance in Alaska: Bristol Bay to southeast Alaska, 1991-1993
Dahlheim, M.; York, A.; Towell, R.; Waite, J.; Breiwick, J.
Marine Mammal Sci (2000)
Between 1991 and 1993, Alaska harbor porpoise (Phocoena phocoena) abundance was investigated during aerial surveys throughout much of the coastal and offshore waters from Bristol Bay in the eastern Bering…