Mar Mam Sci (2014)
Life history parameters were determined for stranded and bycaught harbor porpoises (Phocoena phocoena) from Scottish (UK) waters (1992–2005). Fetal growth rate was 84.4 mm/mo and mean size at birth was…
Sexual dimorphism and developmental patterns in the external morphology of the vaquita, Phocoena sinus
Torre, Jorge; Vidal, Omar; Brownell, Robert L.
Mar Mam Sci (2014)
A total of 56 vaquitas (Phocoena sinus) were examined to evaluate their sexual dimorphism and isometric and/or allometric growth in 35 external characteristics. Absolute and relative (to total length) measurements…
Segregative migration of Dall’s porpoise (Phocoenoides dalli) in the Sea of Japan and Sea of Okhotsk
Amano, Masao; Kuramochi, Toshiaki
Marine Mammal Sci (1992)
Dall's porpoises from the Sea of Japan population taken by a dolphin fishery vessel were examined. Estimated body lengths at sexual maturity were similar to those for the truei-type population…
Age, growth, and reproduction of the finless porpoise, Neophocaena phocaenoides, in the coastal waters of western Kyushu, Japan
Shirakihara, Miki; Takemura, Akira; Shirakihara, Kunio
Marine Mammal Sci (1993)
In the coastal waters of western Kyushu, Japan, a total of 97 incidentally taken or stranded finless porpoises, Neophocaena phocaenoides, was collected for studying age, growth and reproduction. An additional…
Development, sexual dimorphism, and individual variation in the skeleton of the finless porpoise, Neophocaena phocaenoides, in the coastal waters of western Kyushu, Japan
Yoshida, Hideyoshi; Shirakihara, Miki; Takemura, Akira; Shirakihara, Kunio
Marine Mammal Sci (1994)
Development, sexual dimorphism, and individual variation were examined in the skeleton of the finless porpoise in the coastal waters of western Kyushu, Japan. Skulls ceased growing by 4 yr. Postcranial…
The development of spatial positions between mother and calf of Yangtze finless porpoises (Neophocaena asiaeorientalis asiaeorientalis) maintained in captive and seminatural environments
Xian, Yijie; Wang, Kexiong; Jiang, Wenhua; Zheng, Bangyou; Wang, Ding
Aquatic Mammals (2012)
For many toothed whales, two predominant and multifunctional spatial positions occur between a mother/calf pair after birth: (1) the echelon position and (2) the infant position. Other nonpredominant positions also…
Growth and reproduction of three populations of finless porpoise, Neophocaena phocaenoides, in Chinese waters
Gao, Anli; Zhou, Kaiya
Aquatic Mammals (1993)
We have 189 specimens available for this work. One-hundred and sixty-seven specimens from the Yangtze, Yellow Sea and South China Sea populations were aged and used in studying the growth…
Marginal papillae on the tongue of the Harbour porpoise (Phocoena phocoena), Bottlenose dolphin (Tursiops truncatus) and Commerson’s dolphin (Cephalorhynchus commersonii)
Kastelein, R. A.; Dubbeldam, J. L
Aquatic Mammals (1990)
This study shows that in Bottlenose dolphins and in Harbour porpoises the presence of marginal papillae is age related. In Bottlenose dolphins the papillae disappear around the age of 16…
The rearing of suckling harbour porpoises (Phocoena phocoena)
Andersen, S.H.
Aquatic Mammals (1974)
The rearing of unweaned dolphins has hitherto not been described in literature. In 1973 our laboratory received 2 juvenile harbour porpoises (Phocoena phocoena) and we succeeded in rearing them on…
Growth and reproduction of the finless porpoise in southern China
Jefferson, T. A.; Robertson, K. M.; Wang, J. Y.
The Raffles Bulletin of Zoology (2002)
We studied the growth and reproduction of finless porpoises in southern China, based on 86 specimens collected as strandings or fisheries bycatches in Hong Kong, southern Fujian Province, and Taiwan.…