Marine Mammal Science (2010)
A line-transect survey for the critically endangered vaquita, Phocoena sinus, was carried out in October–November 2008, in the northern Gulf of California, Mexico. Areas with deeper water were sampled visually…
External morphology and pigmentation of the vaquita, Phocoena sinus
Brownell, Robert L.; Findley, Lloyd T.; Vidal, Omar; Robles, Alejandro; Silvia Manzanilla, N
Marine Mammal Sci (1987)
The vaquita, Phocoena sinus, is a porpoise in the family Phocoenidae that lives only in the Gulf of California. The external appearance of P. sinus was unknown until 13 fresh…
First records of the spectacled porpoise Phocoena dioptrica in continental Australian waters
Evans, Karen; Kemper, Catherine; Hill, Mark
Marine Mammal Sci (2001)
(...) The spectacled porpoise, Phocoena dioptrica (Lahille, 1912), is a little-known species found in cool temperate, sub- and low-antarctic waters of the Southern Hemisphere (Jefferson et al. 1993, Goodall and…
Subcellular distribution of trace elements in kidney of a mother–fetus pair of Dall’s porpoises (Phocoenoides dalli)
Yang, Jian; Kunito, Takashi; Anan, Yasumi; Tanabe, Shinsuke; Miyazaki, Nobuyuki
Chemosphere (2008)
Total and subcellular renal Zn, Cu, Se, Mn, V, Hg, Cd and Ag were determined by a mother–fetus pair of Dall’s porpoises (Phocoenoides dalli). All element concentrations in the maternal…
Natural hybridization between Dall’s porpoises (Phocoenoides dalli) and harbour porpoises (Phocoena phocoena)
Willis, Pamela M; Crespi, Bernard J; Dill, Lawrence M; Baird, Robin W; Hanson, M Bradley
Can. J. Zool. (2004)
Natural hybridization occurs rarely in mammals compared with other taxonomic groups of animals. Cetaceans appear unique among mammals in exhibiting striking karyological uniformity, which suggests that they have the potential…
Mate guarding in male Dall’s porpoises (Phocoenoides dalli)
Willis, Pamela M.; Dill, Lawrence M.
Ethology (2007)
Mate guarding, whereby a male closely attends and defends a fertile female from extra-pair matings, is one mating tactic males of many species use to protect their paternity. Although female…
Measurements of the nasal sacs of individual common dolphin, Delphinus delphis, and Dall’s porpoise, Phocoenoides dalli, by means of silicon reconstruction.
NAKAMURA, Koji; YAMADA, Tadasu K.; SHIMAZAKI, Kenji
Mammal Study (1998)
(...) The physical properties of the sounds produced by toothed whales are directly affected by the morphological characteristics of the air space in the head and by the sound-production mechanism…
Retinal ganglion cell size and distribution predict visual capabilities of Dall’s porpoise
Murayama, Tsukasa; Somiya, Hiroaki; Aoki, Ichiro; Ishii, Takeo
Marine Mammal Sci (1995)
The structure of the retina, the distribution of ganglion cells, and the extent of the tapetum lucidum were studied in Dall's porpoise (Phocoenoides dalli) with the aim of understanding the…
The natural history of Dall’s Porpoise in the north Pacific Ocean
Morejohn, G. Victor
Behavior of Marine Animals (1979)
Dall’s porpoise, Phocoenoides dalli (True), is commonly encountered over the continental shelf of North America and in offshore and pelagic waters of the western and eastern North Pacific Ocean. This…
Calving seasonality of Dall’s porpoise in the eastern north Pacific
Jefferson, Thomas A.
Marine Mammal Sci (1989)
(...) Four newborn Dall’s porpoises were examined by the author during July of 1987 and 1988. All had muted color patterns, and some evidence of umbilical remnants, fetal folds, and…