Memórias do Instituto Oswaldo Cruz (1994)
(...) In this study the presence of S. australis in P. spinipinnis is recorded for the first time on the Chilean coast. Previously, this species had only been registered from…
Reproduction and reproductive seasonality in Danish harbour porpoises, Phocoena phocoena
Sørensen, Thomas Buus; Kinze, Carl Christian
Ophelia (1994)
The reproduction and reproductive seasonality of 365 Danish harbour porpoises (Phocoena phocoena (L.)) incidentally caught in various gill nets or stranded, was studied. The animals were collected from all Danish…
Interactions between small cetaceans and Peruvian fisheries in 1988/89 and analysis of trends
Van Waerebeek, K.; Reyes, J. C.
Report of the International Whaling Commission (1994)
In 1988 and 1989 we monitored the fish terminal of Pucusana, central Peru, for 259 and 233 days respectively, and observed 1,613 and 1,292 small cetaceans landed. The estimated total…
Incidental catches of harbour porpoises (Phocoena phocoena) in Danish waters, 1986-89
Kinze, C. C.
Report of the International Whaling Commission (1994)
Incidental catches of harbour porpoises (Phocoena phocoena) were studied for the years 1986-89 by means of a salvage programme, an interview survey and a small scale reporting scheme. Data were…
An experimental aerial survey for vaquita (Phocoena sinus) in the northern Gulf of California, Mexico
Barlow, Jay; Fleischer, Luis; Forney, Karin A.; Maravilla-Chavez, Octavio
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…
Preliminary winter abundance estimates for cetaceans along the California coast based on a 1991 aerial survey
Forney, K. A.; Barlow, J.
Report of the International Whaling Commission (1993)
We present the results of an aerial line transect census of cetaceans along the California coast during March and April 1991. This survey was the first of two aerial surveys…
Cytoarchitectonic studies of the cerebral cortex of the harbour porpoise, Phocoena phocoena (Linne, 1758)
Behrmann, G.
Investigations on Cetacea (1993)
The olfactory system of the harbour porpoise is reduced but has a function. The visual system of the harbour porpoise is badly developed, and its inferior to the one of…
External morphology of Dall’s porpoise (Phocoenoides dalli): Growth and sexual dimorphism
Amano, Masao; Miyazaki, Nobuyuki
Canadian Journal of Zoology (1993)
We studied development and sexual dimorphism in external measurements of Dall's porpoises (Phocoenoides dalli) from the northwestern North Pacific. Relative rates of increase in the measurements of the head and…
Histological investigations on the thyroid glands of marine mammals (Phoca vitulina, Phocoena phocoena) and the possible implications of marine pollution
Schumacher, U.; Zahler, S.; Horny, H.-P.; Heidemann, G.; Skirnisson, K.; Welsch, U.
Journal of Wildlife Diseases (1993)
In 1988 and 1989, thousands of harbor seals (Phoca vitulina) died in the North Sea from phocine distemper infection. The morphology of thyroid glands from 40 harbor seals found dead…
Evidence of Poxvirus in dusky dolphin (Lagenorhynchus obscurus) and Burmeister’s porpoise (Phocoena spinipinnis) from coastal Peru
Van Bressem, Marie-Françoise; Van Waerebeek, Koen; Reyes, Julio C.; Dekegel, Daniel; Pastoret, Paul-Pierre
Journal of Wildlife Diseases (1993)
In 1990, 74 dusky dolphins (Lagenorhynchus obscurus) and 10 Burmeister's porpoises (Phocoena spinipinnis) were examined for the presence of hyperpigmented marks and pinhole lesions on the skin (tattoo lesions) at…