Marine Mammal Sci (1998)
(...) It has been hypothesized that Dall's porpoises forage mostly at night or at dawn, because porpoises taken in the morning tended to have a larger amount of food remains…
Observations of parturition and related behaviors of finless porpoise (Neophocaena phocaenoides) in Enoshima Aquarium, Japan
Yang, Jian; Zhang, Xian-Feng; Hori, Yukiko; Fujimoto, Asami
Oceanologia et Limnologia Sinica (1998)
A pregnant finless porpoise (Neophocaena phocaenoides), whose body length (BL) was 1.63 m and body weight (BW) was 75.8 kg, gave birth to a female calf successfully in Enoshima Aquarium,…
Distribution and abundance of and habitat use by harbor porpoise, Phocoena phocoena, off the northern San Juan Islands, Washington
Raum-Suryan, K. L.; Harvey, J. T.
Fishery Bulletin (1998)
Boat surveys along randomly placed line transects were conducted from June to August 1991 and June to October 1992 to determine distribution and abundance of and habitat use by harbor…
Identification of the first harbour porpoise (Phocoena phocoena) calving ground in the North Sea
Sonntag, R. P.; Benke, H.; Hiby, A. R.; Lick, R.; Adelung, D.
Journal of Sea Research (1999)
We investigated the occurrence of harbour porpoises in the North Sea off Schleswig-Holstein by conducting aerial surveys with emphasis on calves. Fourteen per cent of the sighted porpoises off the…
A note on radionuclide 137Cs and 40K concentrations in Dall’s porpoises, Phocoenoides dalli, in coastal waters of Japan
Kasamatsu, F.; Kawabe, K.; Inatomi, N.; Murayama, T.;
Journal of Cetacean Research and Management (1999)
Concentrations of artificial radionuclide 137Cs and natural radionuclide 40K in Dall's porpoise, Phocoenoides dalli, from the Pacific coast of northern Japan in 1996 are presented. Concentrations of 137Cs in muscle…
Finless porpoise Neophocaena phocaenoides (G. Cuvier, 1829)
Kasuya, T.
Handbook of Marine Mammals (1999)
Abstract currently unavailable
Target detection by an echolocating harbor porpoise (Phocoena phocoena)
Kastelein, R. A.; Au, W. W. L.; Rippe, H. T.; Schooneman, N. M.
The Journal of the Acoustical Society of America (1999)
Two echolocation experiments are described. They were conducted on the same harbor porpoise housed in a sea pen, one year apart at Neeltje Jans, The Netherlands. The aims were to…
Examining the risk of inbreeding depression in a naturally rare cetacean, the vaquita (Phocoena sinus)
Taylor, Barbara L.; Rojas-Bracho, Lorenzo
Marine Mammal Sci (1999)
Uncertainty about the magnitude of various risks facing endangered species can paralyze conservation action. The vaquita is a naturally rare porpoise that has declined to the low hundreds of individuals…
Application of a new method to investigate population structure in the harbour porpoise, Phocoena phocoena, with special reference to the North and Baltic Seas
Lockyer, C.
Journal of Cetacean Research and Management (1999)
Tooth ultrastructure in harbour porpoise is examined as a possible tool for differentiating between animals from different geographical regions in the North Atlantic. Nine different characteristics in both dentine and…
Harbour porpoise Phocoena phocoena (Linnaeus, 1758)
Read, A. J.
Handbook of Marine Mammals (1999)
Abstract currently unavailable