Marine Pollution Bulletin (1996)
Levels of organochlorine compounds (PCDD, PCDF, PCB and organochlorine pesticides) were determined in cetaceans collected from the west coast of North America between 1986 and 1989. The samples included gray…
Effects of Beaufort sea state on the sightability of harbor porpoises in the Gulf of Maine
Palka, D.
Report of the International Whaling Commission (1996)
Effects of Beaufort sea state heterogeneities on density estimates of harbor porpoises from data collected during 'independent' team line transect sighting surveys are investigated. The surveys were conducted in the…
Trends in abundance of the Gulf of Maine population of harbour porpoise
Olson, P. A.
Master's Thesis - University of Rhode Island (1996)
Hundreds of harbor porpoise die each year as bycatch in the Gulf of Maine's sink gillnet fishery. In recent years, concern has arisen whether the Gulf of Maine population of…
Investigations on cetacean sonar XI: Intrinsic comparison of the wave shapes of some members of the Phocoenidae family
Kamminga, C.; Cohen Stuart, A.; Silber, G. K.
Aquatic Mammals (1996)
A comparison of the acoustic waveforms of three different species, Phocoena phocoena, Phocoena sinus and Neophocaena phocaenoides of the sub-family Phocoeninae is made with the species Phocoenoides dalli of the…
Epidemiology of poxvirus in small cetaceans from the eastern South Pacific
Van Bressem, Marie-Françoise; Van Waerebeek, Koen
Marine Mammal Sci (1996)
The prevalence of ‘tattoo’ skin lesions, characteristic of poxvirus infection, was examined in 339 small cetaceans captured in gillnet fisheries off coastal Peru: 196 Lagenorhynchus obscurus (34.7%, CI 29.0%–41.8%), 54…
Seasonal distribution of harbour porpoises in US Atlantic waters
Northridge, S.
Report of the International Whaling Commission (1996)
The seasonal distribution of harbour porpoises in US Atlantic waters is explored by examining aerial sightings made by the CeTAP survey between 1978 and 1988. Sightings rates were very low…
Status of the harbour porpoise (Phocoena phocoena) in Danish waters
Teilmann, J.; Lowry, N.
Report of the International Whaling Commission (1996)
Harbour porpoises are widely distributed in the seas around Denmark. Total abundance in Danish waters is estimated as approximately 100,000 animals. Population density varies considerably by area. There are probably…
Geographic variation in external morphology of Dall’s porpoise, Phocoenoides dalli
Amano, M.; Miyazaki, N.
Aquatic Mammals (1996)
We examined geographic variation in external measurements of Dall’s porpoises, using 269 sexually mature specimens from throughout their range, excluding coastal waters off North America and the northern Okhotsk Sea.…
Functional morphology and homology in the odontocete nasal complex: Implications for sound generation
Cranford, T. W.; Amundin, M.; Norris, K. S.
Journal of Morphology (1996)
The site and physiologic mechanism(s) responsible for the generation of odontocete biosonar signals have eluded investigators for decades. To address these issues we subjected postmortem toothed whale heads to interrogation…
The status of the harbour porpoise, Phocoena phocoena, in Dutch waters and the state of related research in The Netherlands: An overview
Reijnders, P. J. H.; Leopold, M. F.; Camphuysen, C. J.; Heessen, H. J. L.; Kastelein, R. A.
Report of the International Whaling Commission (1996)
The reported decline of the harbour porpoise in the coastal areas of the North Sea after 1940, has also been seen in Dutch waters. Information on the distribution and abundance…