A review of factors involved in zonation in Odontocete teeth, and an investigation of the likely impact of environmental factors and major life events on harbour porpoise tooth structure

Lockyer, C.
Report of the International Whaling Commission (1995)

Variation in zonation and Growth Layer Group (GLG) formation and underlying causes are reviewed. Five different types of anomaly were investigated in the teeth of harbour porpoise (Phocoena phocoena): pulp…


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…


Summary of current knowledge of harbour porpoises in US and Canadian Atlantic waters

Palka, D. L.; Read, A. J.; Westgate, A. J.; Johnston, D. W.
Report of the International Whaling Commission (1996)

This paper summarises current knowledge of the three populations of harbour porpoises in US and Canadian Atlantic waters. During the summer, the populations are centred in the Gulf of Maine/Bay…


Status and conservation of facultative freshwater cetaceans in Asia

Smith, B. D.; Jefferson, T. A.
The Raffles Bulletin of Zoology (2002)

Irrawaddy dolphins Orcaella brevirostris and finless porpoises Neophocaena phocaenoides are referred to as facultative freshwater cetaceans because they occupy both fresh- and nearshore marine waters. In Asia, the especially rapid…