Marine Technology Society Journal (1998)
Remotely-deployable non-invasive (suction-cup attached) tags to record underwater behavior of cetaceans have recently been developed. How useful these tags are for applications on a broad range of species has yet…
Report of the International Whaling Commission (1995)
This paper reviews available information on the population biology and incidental mortality of the vaquita, Phocoena sinus. A re-examination of previous records and the collection of new records reveals that…
Report of the International Whaling Commission (1995)
Although thought to be fairly common off the western and southeastern coasts of South America, Burmeister's porpoise (Phocoena spinipinnis) has seldom been seen alive by cetacean researchers. Published sightings are…
Noticiario Mensual - Museo Nacional de Historia Natural (2002)
A highly unusual sighting is described of a group of ca. 150 Burmeister’s porpoises near Isla Guañape Sur (08°28’04”S, 78°58’16.7”W) off the north-central Peruvian coast, in September 2001. The fishermen…
Acta Theriologica Sinica (2015)
Similar to terrestrial mammals, male-female sexual behavior is significant for the survival and continuation of certain cetacean species. However, non-reproductive mating behaviors, i.e. homosexual behaviors and masturbation, are widespread in…
Mammalian Species (2004)
(...) Neophocaena phocaenoides is the only member of the family Phocoenidae without a dorsal fin (Fig. I ). In its place is a low, geographically-variable dorsal ridge (sometimes inappropriately called…
Acta Hydrobiologica Sinica (2005)
Quantitative study of behavior should be preceded by precise description and definition of behavior. Therefore, an ethogram, which includes the comprehensive descriptions of the characteristic behavior of a species, should…
Aquatic Mammals (1974)
Two harbour porpoises, a male and a female, both around 10 months old, which had to be left alone for periods between bio-acoustical investigations, developed stereotyped motor patterns and signs…
Aquatic Mammals (1978)
In March of 1976, the aquarium’s veterinarian brought a young female harbor porpoise to the aquarium and housed her in a shallow (60 cm) portable pool. The animal had stranded…
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…