Master's Thesis - University of British Columbia (2004)
Harbour porpoise (Phocoena phocoena) occur year round in the waters of southern British Columbia, but little is known about their seasonal abundance, habitat use and food habits. A systematic vessel-based…
Marine Fisheries Review (2014)
Harbor porpoise, Phocoena phocoena vomerina, in Cook Inlet, Alaska, are managed as part of the Gulf of Alaska (GOA) stock. It is not known if this population is distinct from…
Bulletin of the International North Pacific Fisheries Commission (1993)
Line transect analysis was applied to the 1987-1990 North Pacific marine mammal sightings survey data, with a regression adjustment for size-biased sampling of schools. Abundance of Pacific white-sided dolphins is…
Aquatic Mammals (1995)
From September 1984 to November 1985, sightings of 1594 groups of harbor porpoises (Phocoena phocoena) were made from a high vantage point at Pajaro Dunes, Monterey Bay, California, in a…
Aquatic Mammals (1998)
A series of behavioural surveys were conducted in Hong Kong upon resident populations of Indo-Pacific hump-backed dolphins (Sousa chinensis) and finless porpoises (Neophocaena phocaenoides). The surveys were carried out from…
Marine Mammal Sci (1993)
(...) The vaquita (Phocoena sinus) is endemic to the Gulf of California and all recent sightings have been in the northern Gulf (Silber 1990a, b) where most survey efforts for…
Marine Mammal Sci (2000)
Between 1991 and 1993, Alaska harbor porpoise (Phocoena phocoena) abundance was investigated during aerial surveys throughout much of the coastal and offshore waters from Bristol Bay in the eastern Bering…
Marine Mammal Sci (1997)
The abundance of the only population of vaquitas, Gulf of California harbor porpoise (Phocoena sinus), is estimated from four surveys conducted in Mexico between 1986 and 1993, using a variety…
Marine Mammal Science (2012)
(...) Gerrodette and Rojas-Bracho (2011) fit a quite detailed Bayesian model to sparse data on vaquita (Phocoena sinus) abundance in order to investigate the likely effects of different degrees of…
Marine Mammal Science (2012)
(...) Lonergan (2012) criticized the analysis of Gerrodette and Rojas-Bracho (2011), who estimated the success of three possible protected areas for the critically endangered vaquita (Phocoena sinus) proposed under the…