Scientific Reports of the Whales Research Institute (1975)
(...) This 114 cm male specimen had a small hole in the genital aperture just in between the anus and the penis opening. Investigating with a surgical tool, the examiner…
The life history of Dall’s porpoise with special reference to the stock off the Pacific coast of Japan
Kasuya, T.
Scientific Reports of the Whales Research Institute (1978)
The geographical variation of the colour types of the species indicates three local stocks in the northwestern North Pacific and western Bering Sea (WNP/BS), off the Pacific coast of Japan…
Report on the small cetaceans stranded on the coasts of Tierra del Fuego
Goodall, R. N. P.
Scientific Reports of the Whales Research Institute (1978)
Little work has been done on the smaller cetaceans of Tierra del Fuego. Data on strandings and new specimens for the following 14 species is presented: Lagenorhynchus australis, Cephalorhynchus commersonii,…
Behavior and segregation of the Dall’s porpoise in the northwestern north Pacific Ocean
Kasuya, T.; Jones, L. L.
Scientific Reports of the Whales Research Institute (1984)
To improve knowledge of the life history of Dall's porpoise, Phocoenoides dalli (True, 1885) that are incidentally caught by the Japanese salmon mothership fishery in the northwestern North Pacific, a…
Some observations on the schools of dalli- and truei-type Dall’s porpoises in the northwestern Pacific
Miyazaki, N.; Jones, L. L.; Beach, R.
Scientific Reports of the Whales Research Institute (1984)
During 349 hours of sighting surveys conducted from late June to early August 1979 in the northwestern North Pacific Ocean and the southern Bering Sea, 167 schools of Phocoenoides dalli…
Second record of spectacled porpoise from subantarctic southwest Pacific
Fordyce, R. E.; Mattlin, R. H.; Dixon, J. M.
Scientific Reports of the Whales Research Institute (1984)
An incomplete skull of unknown sex of a sub-adult spectacled porpoise (Phocoena dioptrica Lahille, 1912) was collected at Macquarie Island (54°30'S, 159°00'E) in July 1957. Cranial measurements are given, and…
Growth of Dall’s porpoise in the western north Pacific and suggested geographical growth differentiation
Kasuya, T.; Shiraga, S.
Scientific Reports of the Whales Research Institute (1985)
Some growth parameters of the western North Pacific dalli-type Dall's porpoise were estimated from 167 specimens taken with hand-held harpoons on two cruises and compared with data obtained previously from…
Chromosome number of two color types of the Dall’s porpoise
Yabu, H.; Ogi, H.
Scientific Reports of the Whales Research Institute (1986)
(...) Makino (1948) studied chromosomes of a male P. dalli using traditional sectioning of testis tissue. Since it was generally accepted in those days that the two color morphs represent…
Perinatal growth of delphinoids: Information from aquarium reared bottlenose dolphins and finless porpoises
Kasuya, T.; Tobayama, T.; Saiga, T.; Kataoka, T.
Scientific Reports of the Whales Research Institute (1986)
The early postnatal growth of bottlenose dolphins and finless porpoises was studied using 97 body length records of 61 individuals born in aquariums. The growth rates observed were similar to…
Distribution of mother-calf Dall’s porpoise pairs as an indication of calving grounds and stock identity
Kasuya, T.; Ogi, H.
Scientific Reports of the Whales Research Institute (1987)
Eighty nine mother-calf Dall's porpoise pairs were sighted in August and September 1982, 1983 and 1985 in the Bering Sea and the western North Pacific (outside the principal range of…