Report of the International Whaling Commission (1995)
Historically harbour porpoises have been taken at six major catch sites in Danish waters. The most important site, in the northern Little Belt at Middelfart, was first mentioned in 1357…
An assessment of the status of the harbour porpoise in central California
Barlow, J.; Hanan, D.
Report of the International Whaling Commission (1995)
Harbour porpoise (Phocoena phocoena) in California are subject to incidental mortality in gillnet fisheries. The status of this population is uncertain. We review information on population structure and conclude that…
Densities and seasonal distribution of harbour porpoises (Phocoena phocoena) in the Swedish Skagerrak, Kattegat and Baltic seas
Berggren, P.; Arrhenius, F.
Report of the International Whaling Commission (1995)
Strip transect aerial surveys were conducted in the Skagerrak and Kattegat Seas for 8 days in June-August, and 2 days in October 1991. Nine sightings of harbour porpoises were recorded…
Sightings of harbour porpoises (Phocoena phocoena) in Swedish waters before 1990
Berggren, P.; Arrhenius, F.
Report of the International Whaling Commission (1995)
This paper examines trends in abundance and distribution of harbour porpoises in Swedish waters. Returns from questionnaires suggested a decline in number of sightings per year in all areas around…
Distribution and abundance of harbour porpoise, Phocoena phocoena, in Norwegian waters
Bjorge, A.; Oien, N.
Report of the International Whaling Commission (1995)
This paper presents information on the distribution of harbour porpoise in Norwegian coastal and adjacent waters based on incidental sightings during the period 1964-1968, bycatches in the driftnet salmon fishery…
The effect of increasing observer trackline effort in shipboard line transect surveys for harbor porpoise
Polacheck, T.
Report of the International Whaling Commission (1995)
Previous double team experiments testing line transect methodology for harbor porpoise indicated that a relatively small proportion of the sightings were actually seen by both teams. Results of an additional…
Double team field tests of line transect methods for shipboard sighting surveys for harbor porpoises
Polacheck, T.
Report of the International Whaling Commission (1995)
Results from experiments designed to test the robustness and reliability of shipboard line transect methods for estimating harbor porpoise densities are presented. These experiments were conducted in the western Bay…
Abundance estimate of the Gulf of Maine harbor porpoise
Palka, D.
Report of the International Whaling Commission (1995)
Shipboard surveys were conducted in the summer of 1991 to estimate the abundance of harbor porpoises, Phocoena phocoena, in the northern Gulf of Maine and lower Bay of Fundy. The…
Harbour porpoises in the north Atlantic: edited extract from the Report of the IWC Scientific Committee, Dublin 1995
Donovan, G.P.; Bjorge, A.
Report of the International Whaling Commission (1995)
At the meeting of the IWC Scientific Committee held in Dublin in May 1995, the special topic addressed by the sub-committee on small cetaceans was the North Atlantic harbour porpoise.…
Population status, threats and conservation of the Yangtze finless porpoise
Wang, Ding
Chinese Science Bulletin (2009)
The Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis) is currently limited to the middle and lower reaches of the Yangtze River from Yichang to Shanghai, China, and the adjoining Poyang and…