Report of the International Whaling Commission (1994)
Between 1982 and 1993, 55 coastal locations throughout Mexico were visited to investigate mortality of small cetaceans. A total of 139 records concerning the use of small cetaceans by fishermen…
Population biology and incidental mortality of the vaquita, Phocoena sinus
Vidal, O.
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…
Phylogenetic relationships among the true porpoises (Cetacea: Phocoenidae)
Rosel, P; Haygood, M; Perrin, W
Molecular Phylogenetics and Evolution (1995)
Portions of the cytochrome b gene and control region of the mitochondrial DNA molecule were sequenced to investigate systematic relationships among the six extant species of true porpoises, (Cetacea: Phocoenidae).…
Distribution of the vaquita, Phocoena sinus, based on sightings from systematic surveys
Gerrodette, Tim; Fleischer, Luis A.; Perez-Cortes, Hector; Villa-Ramirez, Bernardo
Report of the International Whaling Commission (1995)
Sightings of 37 groups of vaquitas, Phocoena sinus, with an estimated total of 62 individuals, are reported from six major systematic surveys and four small boat surveys in the Gulf…
Mortality of the vaquita (Phocoena sinus) in gillnet fisheries during 1993-94
D'Agrosa, C.; Vidal, O.; Graham, W.C.
Report of the International Whaling Commission (1995)
Gillnet fisheries in El Golfo de Santa Clara, Sonora and neighboring fishing camps, in the upper Gulf of California, Mexico, were monitored for 114 days, from 23 January to 7…
Life history of the vaquita, Phocoena sinus (Phocoenidae, Cetacea)
Hohn, A. A.; Read, A. J.; Fernandez, S.; Vidal, O.; Findley, L. T.
Journal of Zoology (1996)
The vaquita, Phocoena sinus, is the most endangered marine cetacean primarily due to incidental mortality in fishing nets. We examined a sample of 56 vaquitas to study the life history…
Investigations on cetacean sonar XI: Intrinsic comparison of the wave shapes of some members of the Phocoenidae family
Kamminga, C.; Cohen Stuart, A.; Silber, G. K.
Aquatic Mammals (1996)
A comparison of the acoustic waveforms of three different species, Phocoena phocoena, Phocoena sinus and Neophocaena phocaenoides of the sub-family Phocoeninae is made with the species Phocoenoides dalli of the…
First estimates of vaquita abundance
Barlow, Jay; Gerrodette, Tim; Silber, Greg
Marine Mammal Sci (1997)
The abundance of the only population of vaquitas, Gulf of California harbor porpoise (Phocoena sinus), is estimated from four surveys conducted in Mexico between 1986 and 1993, using a variety…
Family Phocoenidae Gray, 1825
Rice, D.W.
Marine Mammals of the World: Systematics and Distribution (1998)
(page 121) (...) Miller (1925) and Kellogg (1928) included the true porpoises in the family Delphinidae and did not even grant them subfamily status. However, Slijper (1936) and Fraser and…
Risk factors affecting the vaquita (Phocoena sinus)
Rojas-Bracho, Lorenzo; Taylor, Barbara L.
Marine Mammal Sci (1999)
Despite the vaquita being commonly cited as one of the most endangered marine mammals in the world, there is still disagreement over which factors put the species at greatest risk…