Ophelia (2001)
Concern has been raised about the long-term viability of the harbour porpoise population in the Baltic Sea. Bycatch at possibly unsustainable levels, contaminants, overfishing of prey species and disturbance have…
Concern has been raised about the long-term viability of the harbour porpoise population in the Baltic Sea. Bycatch at possibly unsustainable levels, contaminants, overfishing of prey species and disturbance have…
Harbour Porpoise (Phocoena phocoena) are a small marine mammal reaching a length of about 2.2 m and weight of about 75 kg when fully grown, making them the smallest cetacean…
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…
(...) 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…
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…
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…
The geographic distribution is plotted, and where known, the seasonal occurrence with new data on sightings is given for the smaller Cetacea of Chile. Species documented are: Cephalorhynchus commersonii, C.…
Behavioural observations are fundamental to understanding and defining the habitat needs of animals. I compiled the behavioural repertoires reported for harbour (Phocoena phocoena) and Dall’s porpoise (Phocoenoides dalli) by classifying…
(...) Phocoena spinipinnis may be distinguished externally from all other members of the genus by the slightly convexed anterior and posterior borders and the rounded blunt tip of the dorsal…
Burmeister's porpoise (Phocoena spinipinnis), one of the most common small cetaceans in Peruvian waters, suffers the second highest fishing mortality. Biological data obtained from porpoises caught in gillnets off Peru…