NAMMCOSP (2003)
The status of harbour porpoise (Phocoena phocoena) populations in the North Atlantic has raised numerous concerns. Although a number of factors that may be adversely affecting harbour porpoise populations have…
Abundance estimate of finless porpoises off the Pacific coast of eastern Japan based on aerial surveys.
Amano, Masao; Nakahara, Fumio; Hayano, Azusa; Shirakihara, Kunio
Mammal Study (2003)
We carried out an aerial survey to estimate the abundance of finless porpoises Neophocaena phocaenoides off the Pacific coast of eastern Japan between Sendai Bay (38°23’N) and the mouth of…
COSEWIC assessment and update status report on the harbour porpoise Phocoena phocoena (Pacific Ocean population) in Canada
Baird, Robin W.
COSEWIC Status Reports (2003)
Species Information The harbour porpoise is one of the smallest cetacean species, born at 80-90 cm and only occasionally reaching lengths of close to 2 m. In general, harbour porpoises…
Influence of sea state on density estimates of harbour porpoises (Phocoena phocoena)
Teilmann, J.
Journal of Cetacean Research and Management (2003)
A ship-based line transect survey was conducted in the Great Belt, Denmark, from 7-20 April 1994, covering an area of 705 linear kilometres. A total of 497 sightings were collected…
Effect of the sound generated by an acoustic harassment device on the relative abundance and distribution of harbor porpoises (Phocoena phocoena) in Retreat Passage, British Columbia
Olesiuk, Peter F.; Nichol, Linda M.; Sowden, Margaret J.; Ford, John K. B.
Marine Mammal Sci (2002)
We describe an experiment conducted to assess the impact of the sound generated by an acoustic harassment device (AHD) on the relative abundance and distribution of harbor porpoises (Phocoena phocoena)…
Distribution and abundance of finless porpoises in Hong Kong and adjacent waters of China
Jefferson, T. A.; Hung, S. K.; Law, L.; Torey, M.; Tregenza, N.
The Raffles Bulletin of Zoology (2002)
We studied the distribution and abundance of finless porpoises (Neophocaena phocaenoides) in Hong Kong and adjacent waters of China's Guangdong Province between September 1995 and November 2000. Vessel (50,194 km)…
Abundance decline in the finless porpoise population in the Inland Sea of Japan
Kasuya, T.; Yamamoto, Y.; Iwatsuki, T.
The Raffles Bulletin of Zoology (2002)
From 5 March to 1 July, 1999 and 2000, we made six shipboard surveys for finless porpoises (Neophocaena phocaenoides) in the Inland Sea, which is believed to be inhabited by…
Abundance of harbour porpoise and other cetaceans in the North Sea and adjacent waters
Hammond, P.S.; Berggren, P.; Benke, H.; Borchers, D.L.; Collet, A.; Heide-Jørgensen, M.P.; Heimlich, S.; Hiby, A.R.; Leopold, M.F.; Øien, N.
Journal of Applied Ecology (2002)
The status of small cetaceans in the North Sea and adjacent waters has been of concern for many years. Shipboard and aerial line transect surveys were conducted to provide accurate…
Abundance of harbour porpoise and other cetaceans in the North Sea and adjacent waters
Hammond, P.S.; Berggren, P.; Benke, H.; Borchers, D.L.; Collet, A.; Heide-Jørgensen, M.P.; Heimlich, S.; Hiby, A.R.; Leopold, M.F.; Øien, N.
Journal of Applied Ecology (2002)
1. The status of small cetaceans in the North Sea and adjacent waters has been of concern for many years. Shipboard and aerial line transect surveys were conducted to provide…
Proceedings of the International Harbour Porpoise Workshop
Bowen, D.; Brodie, P.; Conway, J.; Gearin, P.; Hammill, M.; Hood, C. C.; Kingsley, M.; Lesage, V.; Lien, J.; Metuzals, K.; Palka, D.; Potter, D.; Read, A.; Rosel, P.; Simon, P.; Stenson, G.
(2001)
Serious concerns have been raised regarding the status of the harbour porpoise populations in the North Atlantic and specifically for those inhabiting Atlantic Canadian waters. In 1991 harbour porpoise in…