Fishery Bulletin (1990)
Examination of 95 Dall's porpoise specimens incidentally caught in gill nets, and 4 collected as beach strandings, indicate significant sexual dimorphism and developmental variation in several aspects of external morphology…
Photo-identification techniques applied to Dall’s porpoise (Phocoenoides dalli) in Puget Sound, Washington
Miller, E. J.
Report of the International Whaling Commission (1990)
Dorsal fin photographs of Dall's porpoise, Phocoenoides dalli, were taken in northern Puget Sound, Washington in order to assess the feasibility of using photo-identification techniques in studies of this species.…
Anatomical and histological characteristics of the eyes of a month-old and an adult harbor porpoise (Phocoena phocoena)
Kastelein, Ronald A.; Zweypfenning, Ruud C. V. J.; Spekreijse, Henk
Sensory Abilities of Cetaceans (1990)
Several anatomical characteristics of the cornea, lens, iris and retina of the eyes of a month-old and an adult harbor porpoise (Phocoena phocoena) were investigated by scanning, transmission and light…
Acoustic signals of the Vaquita (Phocoena sinus)
Silber, G.K.
Aquatic Mammals (1991)
This report describes the first sounds recorded from the phocoenid porpoise, vaquita, (Phocoena sinus, Norris & McFarland, 1958). High-frequency recordings were obtained near free-ranging vaquita in the northern Gulf of…
Mercury contamination of the harbour porpoise Phocoena phocoena and other cetaceans from the North Sea and the Kattegat
Joiris, C. R.; Holsbeek, L.; Bouquegneau, JM.; Bossicart, M.
Water, Air, and Soil Pollution (1991)
Total Hg levels were determined in 17 harbour porpoises Phocoena phocoena collected in the North Sea and the Kattegat (muscle, liver and kidney), as well as in a sperm whale…
Stenurus australis n. sp. (Nematoda: Pseudaliidae) de Phocoena spinipinnis (Burmeister, 1865) (Cetacea: Phocoenidae) de Peru
Sarmiento, L. B.; Tantaleán, M. V.
Publicaciones del Museo de Historia Natural - Serie A Zoologia (1991)
Stenurus australis n. sp. (Nematoda: Pseudaliidae) found in the nasal and cranial sinuses of Phocoena spinipinnis (Burmeister, 1865) is described. The hosts were obtained at the Chimbote, Ancash (09°04'S-78°35'W) and…
Potential rates of increase of a harbour porpoise (Phocoena phocoena) population subjected to incidental mortality in commercial fisheries
Woodley, Thomas H.; Read, Andrew J.
Canadian Journal of Fisheries and Aquatic Sciences (1991)
We estimated the potential intrinsic rate of increase (r) of the harbour porpoise (Phocoena phocoena) population in the Bay of Fundy and Gulf of Maine using empirical data on reproductive…
Observations on the distribution and behavior of Dall’s porpoise (Phocoenoides dalli) in Monterey Bay, California
Jefferson, T.
Aquatic Mammals (1991)
A study of Dall's porpoise distribution and behaviour between September 1986 and February 1989 confirmed the year-round presence of these animals in Monterey Bay, California. Dall's porpoises in the Bay…
New advances on population status and protective measures of Lipotes vexillifer and Neophocaena phocaenoides in the Changjiang River
Renjun, L.
Aquatic Mammals (1991)
This paper reports the population status of the endangered Chinese River dolphin - Lipotes vexillifer, the factors causing the population decline of Lipotes and protective measures adopted in recent years,…
Skin disease in wild cetaceans from British waters
Baker, J.R.
Aquatic Mammals (1992)
Eighty-one dead cetaceans of a variety of species and from British waters were examined for evidence of skin disease and 69% were found to be affected. The most common conditions…