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…
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…
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…
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…
Genetic variability and differentiation in the toothed whales
Shimura, E.; Numachi, K.-I.
Scientific Reports of the Whales Research Institute (1987)
Genetic variability and differentiation of three families containing 12 species of toothed whales mainly from the sea around Japan have been examined by starch-gel electrophoresis at 19 genetic loci encoding…
Distribution and abundance of Dall’s porpoises off Japan
Miyashita, T.; Kasuya, T.
Scientific Reports of the Whales Research Institute (1988)
Results of nine whale sighting cruises in the Japanese coastal waters in 1983 through 1986 and some additional cruises provided following conclusion. Dall's porpoises inhabit waters below 24°C, but the…
A review of human impact on small cetaceans
Northridge, S.; Pilleri, G.
Investigations on Cetacea (1986)
(...) This document attempts to gather together as much information as is available on the extent of current killings of small cetaceans throughout the world, and also to highlight some…
Observations on Pacific cetaceans of Californian and Mexican waters
Norris, K. S.; Prescott, J. H.
University of California Publications in Zoology (1961)
(...) For five years we have systematically gathered information of every available kind related to these animals. Fifteen species have been observed in sufficient detail to be considered here. These…