Marine Mammal Sci (1992)
(...) On 28 August 1989, we were informed by California State Park Ranger Robert Breen that a small porpoise had washed ashore at the James Fitzgerald Marine Reserve, San Mateo…
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…
Evolution, taxonomy and antitropical distributions of the porpoises (Phocoenidae, Mammalia)
Barnes, Lawrence G.
Marine Mammal Sci (1985)
True porpoises are a morphologically distinctive and evolutionarily old group of odontocete cetaceans classified as the family Phocoenidae. They are distinct from members of the family Delphinidae, with which they…
Re-evaluation of geographic variation in the white flank patch of dalli-type Dall’s porpoises
Amano, Masao; Marui, Miho; Guenther, Tamara; Ohizumi, Hiroshi; Miyazaki, Nobuyuki
Marine Mammal Sci (2000)
(...) Amano and Miyazaki (1996) found a geographic difference in the size of the white flank patch among dalli-type animals and reported that porpoises from the Sea of Japan-Okhotsk population…
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…
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…
Geographical variation of the parasite, Phyllobothrium delphini (Cestoda), in Dall’s porpoise, Phocoenoides dalli, in the northern north Pacific, Bering Sea, and Sea of Okhotsk
Walker, William A.
Marine Mammal Sci (2001)
Prevalence of the larval cestode, Phyllobothrium delphini, was estimated from 2,445 Dall's porpoise, Phocoenoides dalli, from the incidental take of the Japanese high seas salmon drift-net fishery in the northwestern…
Intermingling of dalli-type Dall’s porpoises into a wintering truei-type population off Japan: Implications from color patterns
Amano, Masao; Hayano, Azusa
Marine Mammal Sci (2007)
There are two major color morphs, truei and dalli types, of the Dall's porpoise and the latter includes two minor morphs. A small number of dalli types are found among…
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…
Sexual dimorphism of Dall’s porpoise and harbor porpoise skulls
Frandsen, Marie Schou; Galatius, Anders
Mammalian Biology - Zeitschrift für Säugetierkunde (2013)
To evaluate and quantify sexual dimorphism of skull shape and assess the ontogenetic background for differences, samples of 134 harbor porpoise (Phocoena phocoena) and 85 Dall's porpoise (Phocoenoides dalli) were…