Report of the International Whaling Commission (1994)
Incidental catches of harbour porpoises (Phocoena phocoena) were studied for the years 1986-89 by means of a salvage programme, an interview survey and a small scale reporting scheme. Data were…
Harbor porpoise mortality in the Monterey Bay halibut gillnet fishery, 1989
Jefferson, T. A.; Curry, B. E.; Black, N. A.
Report of the International Whaling Commission (1994)
Harbor porpoises (Phocoena phocoena) have been killed in gillnets set for halibut in central California since at least 1969. In the Monterey Bay area (Pigeon Pt. to Pt. Sur), past…
Cetaceans of the northern Gulf of California: Distribution, occurrence, and relative abundance
Silber, Gregory K.; Newcomer, Michael W.; Silber, Patricia C.; Perez-Cortes M., Hector; Ellis, Graeme M.
Marine Mammal Sci (1994)
A total of 1,715 km of boat-based surveys and 1,521 km of aircraft-based surveys was conducted from 1986–1989 to assess the distribution, relative abundance, and ecological relationships of cetaceans in…
A brief review of stock identity in small marine cetaceans in relation to assessment of driftnet mortality in the north Pacific
Perrin, W. F.; Brownell, R. L. Jr.
Report of the International Whaling Commission (1994)
Dolphins of several species are killed incidentally in driftnet fisheries on the high seas in the North Pacific. Information on stock identity, necessary for assessment and management of the dolphin…
Bycatch and bycatch reduction of the harbour porpoise (Phocoena phocoena) in Danish waters
Lowry, N.; Teilmann, J.
Report of the International Whaling Commission (1994)
The harbour porpoise (Phocoena phocoena) is the only cetacean incidentally caught in significant numbers by the Danish fishing fleet and there is some concern that the populations in Danish waters…
Brief review of passive fishing gear and incidental catches of small cetaceans in Chinese waters
Zhou, K.; Wang, X.
Report of the International Whaling Commission (1994)
A total of 139 types of passive fishing gear are used in Chinese marine fisheries. Finless porpoises, false killer whales, bottlenose dolphins and common dolphins are known to be caught…
A global review of porpoise (Cetacea: Phocoenidae) mortality in gillnets
Jefferson, Thomas A.; Curry, Barbara E.
Biological Conservation (1994)
A global review of mortality of porpoises in gillnet fisheries indicates that individuals of all six species become entangled and die in gillnets. Harbor porpoises Phocoena phocoena are taken throughout…
Estimates of incidental marine mammal bycatch in California gillnet fisheries for July through December, 1990
Lennert, C.; Kruse, S.; Beeson, M.; Barlow, J.
Report of the International Whaling Commission (1994)
Data are reported on marine mammal mortality collected from California's gillnet fisheries for California halibut and Pacific angel shark (set net) and swordfish and pelagic sharks (driftnet) during the first…
Incidental catches of harbour porpoises (Phocoena phocoena) in the Gulf of St. Lawrence and the St. Lawrence River Estuary, Quebec, Canada
Fontaine, P.-M.; Barrette, C.; Hammill, M. O.; Kingsley, M. C. S.
Report of the International Whaling Commission (1994)
Incidental catches of harbour porpoise by commercial fisheries in the Estuary and Gulf of St. Lawrence, Canada were examined. Two questionnaires, one in 1989 and one in 1990, were sent…
The potential for reducing entanglement of dolphins and porpoises with acoustic modifications to gillnets
Dawson, S. M.
Report of the International Whaling Commission (1994)
To reduce incidental catch of cetaceans in gillnets, two forms of acoustic modifications are reviewed here; one to make gillnets more reflective to cetacean sonar, and another using active sound…