Theriogenology (2010)
Most male mammals in temperate regions demonstrate seasonal sexual behaviors that coincide with seasonal variations in gonadal activities and androgen hormones. The Yangtze finless porpoise is a temperate freshwater cetacean…
Distinguishing between two species of finless porpoises (Neophocaena phocaenoides and N. asiaeorientalis) in areas of sympatry
Wang, John Y.; Yang, Shih Chu; Wang, Bi J.; Wang, Lo S.
Mammalia (2010)
The existence of at least two biological species of finless porpoises (Neophocaena phocaenoides and N. asiaeorientalis) was accepted only recently. Given the vulnerability of finless porpoises to human activities throughout…
Interspecific variation of ontogeny and skull shape among porpoises (Phocoenidae)
Galatius, Anders; Berta, Annalisa; Frandsen, Marie Schou; Goodall, R. Natalie P.
Journal of Morphology (2010)
All extant members of Phocoenidae (porpoises) have been characterized as pedomorphic based on skeletal characters. To investigate the ontogenetic background for pedomorphosis and assess interspecific differences in ontogeny among phocoenids,…
Physiological responses to capture and handling of free-ranging male Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis)
Hao, Yu-Jiang; Zhao, Qing-Zhong; Wu, Hai-Ping; Chen, Dao-Quan; Gong, Cheng; Li, Li; Wang, Ding
Marine and Freshwater Behaviour and Physiology (2009)
We captured free-ranging male Yangtze finless porpoises over three seasons and assayed leukocytes and serum biochemistry to investigate physiological responses to the capture and handlings. Serum thyroid hormones (THs) declined…
The rescue, rehabilitation, and release of a stranded finless porpoise (Neophocaena phocaenoides sunameri) at Bohai Bay of China
Yu, Jinhai; Sun, Yanming; Xia, Zhaofei
Aquatic Mammals (2009)
A stranded female west Pacific finless porpoise (Neophocaena phocaenoides sunameri) was found in the shallows of Bohai Bay, China, on 30 March 2008. It was moderately dehydrated. After transportation to…
Scanning sonar of rolling porpoises during prey capture dives
Akamatsu, T.; Wang, D.; Wang, K.; Li, S.; Dong, S.
Journal of Experimental Biology (2009)
Dolphins and porpoises have excellent biosonar ability, which they use for navigation, ranging and foraging. However, the role of biosonar in free-ranging small cetaceans has not been fully investigated. The…
Population status, threats and conservation of the Yangtze finless porpoise
Wang, Ding
Chinese Science Bulletin (2009)
The Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis) is currently limited to the middle and lower reaches of the Yangtze River from Yichang to Shanghai, China, and the adjoining Poyang and…
Food habits of finless porpoises Neophocaena phocaenoides in Western Kyushu, Japan
Shirakihara, Miki; Seki, Kenji; Takemura, Akira; Shirakihara, Kunio; Yoshida, Hideyoshi; Yamazaki, Takeshi
Journal of Mammalogy (2008)
We examined the stomach contents of 87 finless porpoises (Neophocaena phocaenoides) in the Ariake Sound–Tachibana Bay area and Omura Bay in western Kyushu, Japan, between 1987 and 1992. Fish (Gobiidae…
Abundance and conservation status of the Yangtze finless porpoise in the Yangtze River, China
Zhao, Xiujiang; Barlow, Jay; Taylor, Barbara L.; Pitman, Robert L.; Wang, Kexiong; Wei, Zhuo; Stewart, Brent S.; Turvey, Samuel T.; Akamatsu, Tomonari; Reeves, Randall R.; Wang, Ding
Biological Conservation (2008)
The Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis) is endemic to the middle and lower reaches of the Yangtze River, China. It is the only freshwater population of porpoises in the…
Comparison of echolocation behaviour between coastal and riverine porpoises
Akamatsu, Tomonari; Teilmann, Jonas; Miller, Lee A.; Tougaard, Jakob; Dietz, Rune; Wang, Ding; Wang, Kexiong; Siebert, Ursula; Naito, Yasuhiko
Deep Sea Research Part II: Topical Studies in Oceanography (2007)
Echolocation behaviour of a harbor porpoise and six finless porpoises was recorded in open-water systems using acoustic data loggers (A-tag). In total 1359 click trains were recorded during 4.6 h…