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…
Phocoena spinipinnis
Brownell, R.L. Jr.; Praderi, R
Mammalian Species (1984)
(...) Phocoena spinipinnis may be distinguished externally from all other members of the genus by the slightly convexed anterior and posterior borders and the rounded blunt tip of the dorsal…
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…
Reproduction in the porpoises (Phocoenidae): Implications for management
GASKIN, D. E.; SMITH, G. J. D.; WATSON, A. P.; YASUI, W. Y.; YURICK, D. B.
Report of the International Whaling Commission (1984)
The population biology of most phocoenid species is still rather poorly understood. It is important that we improve our knowledge in view of concerns which have been expressed in recent…
Seasonal changes in density and behavior of harbor porpoise (Phocoena phocoena) affecting census methodology in Glacier Bay National Park, Alaska
Taylor, B. L.; Dawson, P. K.
Report of the International Whaling Commission (1984)
The purpose of this study was to gather base-line life history data on the harbor porpoise. The information presented here describes only those aspects which would affect a census. During…
The harbour porpoise Phocoena phocoena (L.): Regional populations, status, and information on direct and indirect catches
Gaskin, D. E.
Report of the International Whaling Commission (1984)
The distribution of the harbour porpoise Phocoena phocoena (L.). is re-examined using a compilation of all available recent information. Three isolated major populations of this species exist: in the North…
Development and rudimentation of the peripheral olfactory system in the harbor porpoise, Phocoena phocoena (Mammalia: Cetacea)
Oelschläger, Helmut A.; Buhl, Eberhard H.
Journal of Morphology (1985)
Serial sections of 13 embryos and fetuses of the harbor porpoise from 10 mm crown-rump length up to 167 mm total length were studied. Unlike the adult animals, ontogenetic stages…
Magnetoreception and biomineralization of magnetite in cetaceans
Bauer, G.B.; Fuller, M.; Perry, A.; Dunn, J.R.; Zoeger, J.
Magnetite Biomineralization and Magnetoreception in Organisms: A New Biomagnetism (1985)
(...) Although various sensory mechanisms are present in cetaceans, special navigational problems occur when animals are in a pelagic environment which can minimize available cues. Dawbin (1966) has observed that…
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…
The harbor porpoise, Phocoena phocoena, in Fish harbour, New Brunswick, Canada: Occupancy, distribution, and movements
Gaskin, D. E.; Watson, A. P.
Fishery Bulletin (1985)
The distribution, movements, and relative population abundance of harbor porpoises were studied in the Fish Harbour region of New Brunswick, Canada (lat. 44°59'30"-45°01'00"N, long. 66°54'00"-66°57'00"W), from 1970 to 1978. In…