Since 1978, the annual incidental take of Dall's porpoises by the Japanese salmon land-based and mothership fisheries has been reported to the International North Pacific Fisheries Commission by the Japan…
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…
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…
Catch statistics for 15 species of small cetacean are analysed, based on catch data collected for the 6 years from 1976 to 1981. Commercial catching of animals either by harpoon…
(...) Several studies on the population and distribution of marine mammals were conducted between 1978 and 1981 in the North Pacific Ocean under a United States-Japan cooperative agreement of the…
This field guide is designed to permit observers to identify the cetaceans (whales, dolphins, and porpoises) they see in the waters of the eastern North Pacific, including the Gulf of…
One hundred and forty-three skulls of a total of 15 cetacean species belonging to the superfamiIies of the Platanistoidea, Monodontoidea and Delphinoidea presented usually symmetrically arranged perforation areas or lacunae…
General food habits are discussed for 11 species of small marine mammals beach-east in northern California. The collection method allowed tabulation only of the kinds, numbers, and percentages of fish,…
The food of the Pacific white-sided dolphin, Lagenorhynchus obliquidens, and Dali's porpoise, Phocoenoides dalli -- collected off California and Washington in 1958-72 -- is compared with food of the northern…
Dall’s porpoise, Phocoenoides dalli (True), is commonly encountered over the continental shelf of North America and in offshore and pelagic waters of the western and eastern North Pacific Ocean. This…