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…


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…


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…


Life history of harbor porpoises (Phocoena phocoena) in Scottish (UK) waters

Learmonth, Jennifer A.; Murphy, Sinead; Luque, Patricia L.; Reid, Robert J.; Patterson, I. Anthony P.; Brownlow, Andrew; Ross, Harry M.; Barley, Jason P.; Begoña Santos, M.; Pierce, Graham J.
Mar Mam Sci (2014)

Life history parameters were determined for stranded and bycaught harbor porpoises (Phocoena phocoena) from Scottish (UK) waters (1992–2005). Fetal growth rate was 84.4 mm/mo and mean size at birth was…