Sensory Abilities of Cetaceans (1990)
Several anatomical characteristics of the cornea, lens, iris and retina of the eyes of a month-old and an adult harbor porpoise (Phocoena phocoena) were investigated by scanning, transmission and light…
Forehead anatomy of Phocoena phocoena and Cephalorhynchus commersonii: 3-dimensional computer reconstructions with emphasis on the nasal diverticula
Amundin, Mats; Cranford, Ted
Sensory Abilities of Cetaceans (1990)
(...) Watkins et al. (1977) and Dudok van Heel (1981) point to similarity in sound output in Cephalorhynchus and Phocoena, and suggest that it may be the result of convergent…
Studies on echolocation of porpoises taken in salmon gillnet fisheries
Hatakeyama, Yoshimi; Soeda, Hideo
Sensory Abilities of Cetaceans (1990)
(...)In the Bering Sea, marine mammals, particularly Dall's porpoises, Phocoenoides dalli, get incidentally entangled in gillnets of the Japanese mothership salmon fishery. The maximum total number of Dall's porpoises to…
Best vision zones in the retinae of some cetaceans
Mass, Alla; Supin, Alexander
Sensory Abilities of Cetaceans (1990)
(...) Organization of the visual system in Cetacea still remains unclear in many respects. Of special interest are data on ganglion cell distribution in the retina. It is related closely…
Abundance and distribution of finless porpoises in the Nanjing-Hukou section of the Lower Yangtze River
Zhou, Kaiya; Yang, Guang; Gao, Anli; Sun, Jiang; Xu, Xinrong
Biology and Conservation of Freshwater Cetaceans in Asia (2000)
Survey results from 1989 to 1992 were interpreted as indicating that about 700 finless porpoises (Neophocaena phocaenoides) inhabited the section of the lower Yangtze River between Nanjing and Hukou. The…
A preliminary study on the variability of the mitochondrial DNA control region in populations of finless porpoises (Neophocaena phocaenoides) in Chinese waters
Yang, Guang; Zhou, Kaiya
Biology and Conservation of Freshwater Cetaceans in Asia (2000)
The mitochondrial DNA control region of 12 finless porpoises (Neophocaena phocaenoides) from the Yangtze River, Yellow Sea, and South China Sea, was amplified. Two portions, 317 and 245 base pairs,…
Effects of water development on river cetaceans in China
Liu, Renjun; Wang, Ding
Biology and Conservation of Freshwater Cetaceans in Asia (2000)
Water development projects, including dams, embankments, and ship locks, have had extensive deleterious effects on two species of river cetacean in China: the baiji (Lipotes vexillifer) and the Yangtze population…
Radio tracking finless porpoises (Neophocaena phocaenoides): Preliminary evaluation of a potential technique, with cautions
Würsig, B.; Wang, D.; Zhang, X.
Biology and Conservation of Freshwater Cetaceans in Asia (2000)
Three finless porpoises (Neophocaena phocaenoides) from the Yangtze River were fitted with cotton cloth vests and small radio transmitters. They were tracked for 2.6, 11.0, and 14.6 days in the…
Status and conservation of the Yangtze finless porpoise
Wang, Ding; Liu, Renjun; Zhang, Xianfeng; Yang, Jian; Wei, Zhuo; Zhao, Qingzhong; Wang, Xiaoqiang
Biology and Conservation of Freshwater Cetaceans in Asia (2000)
During 1991–1997, five and three surveys were conducted in the middle and lower reaches, respectively, of the Yangtze River. The target species of the surveys included both the baiji (Lipotes…
Microsatellite variation and significant population genetic structure of endangered finless porpoises (Neophocaena phocaenoides) in Chinese coastal waters and the Yangtze River
Chen, Lian; Bruford, Michael W.; Xu, Shixia; Zhou, Kaiya; Yang, Guang
Marine Biology (2010)
The finless porpoise (Neophocaena phocaenoides) inhabits a wide range of tropical and temperate waters of the Indo-Pacific region. Genetic structure of finless porpoises in Chinese waters in three regions (Yangtze…