Results 151 to 160 of about 1,560 (181)

Population survey showing hope for population recovery of the critically endangered Yangtze finless porpoise

, 2020
The Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis), has experienced rapid declines in recent decades. We estimate its abundance based on surveys conducted between November and December 2017 in the main-stem of the Yangtze River ...
H. Jie, Zhigang Mei, Mao Chen, Yi Han, Xinqiao Zhang, J. Moore, Xiujiang Zhao, Yujiang Hao, Ke‐Xiong Wang, Ding Wang   +9 more
semanticscholar   +1 more source

Hydraulic complexity at a laboratory-scale confluence: Experimental distribution of bioenergetics metrics and its relation to Yangtze finless porpoise habitats

The Physics of Fluids
Confluences are key features in river networks and serve as critical nodes for ecological patterns, often exhibiting rich biodiversity. However, our current understanding of how hydrodynamics influences these patterns remains limited, as most previous ...
Kang Chen, Qingwei Lin, Hao Wang, Jieqing Liu, Yang Lin, C. Gualtieri   +5 more
semanticscholar   +1 more source

Ultrastructure of the Spermatozoa of the Yangtze Finless Porpoise (Neophocaena phocaenoides asiaeorientalis)

Anatomia, Histologia, Embryologia, 2009
SummarySemen sample was collected from two captive adult Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis) during physical examination. One individual was aged about 9 years with body length 143 cm (total length) and body weight 46.1 kg in 2003. The age of the other was unknown and its body length was 147 cm and body weight was 43 kg
H Y, Li, X F, Zhang, D, Wang, D Q, Chen
openaire   +2 more sources

Passive acoustical survey of finless porpoises in the Yangtze River, China

The Journal of the Acoustical Society of America, 1999
Finless porpoises (Neophocaena phocaenoides) are distributed in Asian waters. The narrow-band and high-frequency pulse sonar signals produced by this species are distinctive from background noises. Underwater sound monitoring by a hydrophone (BK8103) along board sides of a research vessel concurrent with visual observation were conducted in the Yangtze
Tomonari Akamatsu, Ding Wang, Kexiong Wang   +2 more
openaire   +1 more source

Environmental DNA reveals the spatiotemporal distribution and migration characteristics of the Yangtze finless porpoise, the sole aquatic mammal in the Yangtze River

Environmental Research
The Yangtze Finless Porpoise (YFP) is one of the 13 global flagship species identified by the World Wildlife Fund and is classified as "Critically Endangered." It is also the only extant aquatic mammal in the Yangtze River.
Hao Du, Zhenguang Yan
exaly   +2 more sources

Finding baiji and freshwater finless porpoises in the Yangtze River, China

The Journal of the Acoustical Society of America, 2011
A stereo passive acoustic event recorder (A-tag) has been applied for range-wide monitoring of baiji and finless porpoises in China. As the pilot study, two research vessels were operated in 1700 km historic habitat of both species from Yichang to Shanghai in 2006.
Tomonari Akamatsu, Lijun Dong, Ding Wang, Kexiong Wang, Songhai Li, Shouyue Dong, Xiujiang Zhao, Satoko Kimura   +7 more
openaire   +1 more source

Individual variability of echolocation and diving behavior of Yangtze finless porpoises

The Journal of the Acoustical Society of America, 2012
Passive acoustic monitoring has been widely applied to observe the presence, movement and behavior of the target species. For quantitative analysis, the acoustic cue production rate of the target animals must be observed in advance. We examined the detailed pattern of biosonar and swimming behaviors of 10 Yangtze finless porpoises (1 female and 9 males)
Satoko Kimura, Tomonari Akamatsu, Kexiong Wang, Ding Wang, Songhai Li, Nobuaki Arai   +5 more
openaire   +1 more source

INDIRECT EVIDENCE OF BOAT AVOIDANCE BEHAVIOR OF YANGTZE FINLESS PORPOISES

Bioacoustics, 2008
(2008). INDIRECT EVIDENCE OF BOAT AVOIDANCE BEHAVIOR OF YANGTZE FINLESS PORPOISES. Bioacoustics: Vol. 17, No. 1-3, pp. 174-176.
SONGHAI LI, TOMONARI AKAMATSU, DING WANG, KEXIONG WANG, SHOUYUE DONG, XIUJIANG ZHAO, ZHUO WEI, XIANFENG ZHANG, BARBARA TAYLOR, LEIGH A. BARRETT, SAMUEL T. TURVEY, RANDALL R. REEVES, BRENT S. STEWART, MICHAEL RICHLEN, JOHN R. BRANDON   +14 more
openaire   +1 more source

Cytotoxicity and mechanisms of perfluorobutane sulfonate (PFBS) in umbilical cord fibroblast cells of Yangtze finless porpoise.

Aquatic Toxicology
Yangtze finless porpoises (YFP) accumulate high levels of per- and polyfluoroalkyl substances (PFASs). However, the health impacts of PFASs to YFP are still unknown because it is technically and ethically unfeasible to use the critically endangered YFP ...
Maaz Ahmad, Chenyan Hu, Mengyuan Liu, Haobo Zhang, Syed Ata Ur Rahman Shah, Ghulam Nabi, Yujiang Hao, Lianguo Chen   +7 more
semanticscholar   +1 more source

Background Information of Poyang Lake and Yangtze Finless Porpoises

2012
Before I start describing Yangtze finless porpoises (YFPs), I need to put this animal and the need to protect it into context. Therefore, this chapter seeks to introduce the area, Poyang Lake, and identify major use conflicts with respect to ecology and economy.
openaire   +1 more source