Report on vaquita rate of change between 2011-2014 using passive acoustic data by the expert panel on spatial models

Jaramillo-Legorreta, Armando; Rojas-Bracho, Lorenzo; VerHoef, Jay; Moore, Jeff; Thomas, Len; Barlow, Jay; Gerrodette, Tim; Taylor, Barbara
Scientific Committee Meeting Documents (2015)

The Expert Panel on Vaquita Acoustic Monitoring had its second meeting on April 28, 2015 to analyze the first four seasons (2011-2014) of the acoustic monitoring program. Results indicate an…


The Yangtze finless porpoise: On an accelerating path to extinction?

Mei, Zhigang; Zhang, Xinqiao; Huang, Shiang-Lin; Zhao, Xiujiang; Hao, Yujiang; Zhang, Lin; Qian, Zhengyi; Zheng, Jinsong; Wang, Kexiong; Wang, Ding
Biological Conservation (2014)

For the conservation of endangered animals to be effective, information on population distribution and abundance requires regular updating from census efforts. The Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) has recently…


A combined visual and acoustic estimate of 2008 abundance, and change in abundance since 1997, for the vaquita, Phocoena sinus

Gerrodette, Tim; Taylor, Barbara L.; Swift, René; Rankin, Shannon; Jaramillo-Legorreta, Armando M.; Rojas-Bracho, Lorenzo
Marine Mammal Science (2010)

A line-transect survey for the critically endangered vaquita, Phocoena sinus, was carried out in October–November 2008, in the northern Gulf of California, Mexico. Areas with deeper water were sampled visually…


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…


Changes in the occurrence of common dolphins, striped dolphins and harbour porpoises in the English Channel and Bay of Biscay

MacLeod, Colin D.; Brereton, Tom; Martin, Clive
Journal of the Marine Biological Association of the United Kingdom (2008)

Regular monitoring of the status of cetacean populations is essential for conservation, policy and management. By using a passenger ferry as a scientific research platform, this study provides information on…