Report of the International Whaling Commission (1995)
Two density indices of Dall's porpoise abundance were estimated for the western North Pacific from 1979 to 1989. One index is the density of animals (number of animals per square…
Investigations on cetacean sonar XI: Intrinsic comparison of the wave shapes of some members of the Phocoenidae family
Kamminga, C.; Cohen Stuart, A.; Silber, G. K.
Aquatic Mammals (1996)
A comparison of the acoustic waveforms of three different species, Phocoena phocoena, Phocoena sinus and Neophocaena phocaenoides of the sub-family Phocoeninae is made with the species Phocoenoides dalli of the…
Levels of organochlorine compounds, including PCDDS and PCDFS, in the blubber of cetaceans from the west coast of North America
Jarman, W. M.; Norstrom, R. J.; Muir, D. C. G.; Rosenberg, B.; Simon, M.; Baird, R. W.
Marine Pollution Bulletin (1996)
Levels of organochlorine compounds (PCDD, PCDF, PCB and organochlorine pesticides) were determined in cetaceans collected from the west coast of North America between 1986 and 1989. The samples included gray…
Summer feeding habits of Dall’s porpoise, Phocoenoides dalli, in the southern Sea of Okhotsk
Walker, William A.
Marine Mammal Sci (1996)
Stomach contents were analyzed from 85 Dall's porpoises, Phocoenoides dalli, taken in the southern Sea of Okhotsk during the summer of 1988. Thirteen species of fish and five species of…
The phylogeographic pattern of mitochondrial DNA variation in the Dall’s porpoise Phocoenoides dalli
MCMILLAN, W. O.; BERMINGHAM, E.
Molecular Ecology (1996)
We used 11 restriction endonucleases to study mtDNA variation in 101 Dall's porpoises Phocoenoides dalli from the Bering Sea and western North Pacific. There was little phylogeographic patterning among the…
Geographic variation in external morphology of Dall’s porpoise, Phocoenoides dalli
Amano, M.; Miyazaki, N.
Aquatic Mammals (1996)
We examined geographic variation in external measurements of Dall’s porpoises, using 269 sexually mature specimens from throughout their range, excluding coastal waters off North America and the northern Okhotsk Sea.…
Composition of the incidental kill of cetaceans in two California gillnet fisheries: 1990-1995
Chivers, S. J.; Robertson, K. M.; Henshaw, M. D.
Report of the International Whaling Commission (1997)
In July 1990, an observer program was established to collect data on the bycatch of the drift and set gillnet fisheries operating off the coast of California. These data are…
Seasonal patterns in the abundance and distribution of California cetaceans, 1991-1992
Forney, Karin A.; Barlow, Jay
Marine Mammal Sci (1998)
This study presents a detailed seasonal comparison of the abundance and distribution of cetaceans within 100-150 nmi (185-278 km) of the California coast during 1991 and 1992. The results of…
An intergeneric hybrid in the family Phocoenidae
Baird, Robin W.; Willis, Pamela M.; Guenther, Tamara J.; Wilson, Paul J.; White, Bradley N.
Canadian Journal of Zoology (1998)
A 60-cm female fetus recovered from a Dall's porpoise (Phocoenoides dalli) found dead in southern British Columbia was fathered by a harbour porpoise (Phocoena phocoena). This is the first report…
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…