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Yangtze finless porpoise in Yangtze River, China 2006
Citatie
Zhao, X.J., J. Barlow, B.L. Taylor, R.L. Pitman, K.X. Wang, Z. Wei, B.S. Stewart, S.T. Turvey, T. Akamatsu, R.R. Reeves and D. Wang. 2008. Abundance and conservation status of the Yangtze finless porpoise in the Yangtze River, China. Biological Conservation. 141(12): 3006-3018. https://marineinfo.org/id/dataset/3570
Contact:
Zhao, Xiujiang Beschikbaarheid:
![]() Beschrijving
The purpose of this study was to search for baiji and evaluate the status of Yangtze finless porpoise. meer
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 world and is currently listed as Endangered by IUCN. In November and December 2006, we used two boats and line transect methods to survey the entire current range of the population, except for two lakes (Poyang and Dongting). When on-effort, one boat surveyed 3,100 km with 240 sightings and a mean group size of 1.87 resulting in 0.077 sightings/km, while the other boat surveyed 3,065 km with 198 sightings and a mean group size of 2.05 resulting in 0.065 sightings/km. Baiji was announced to be likely extinct after this range-wide survey since not a single baiji was found during this survey (Turvey et al. 2007). [Turvey, S.T., R.L. Pitman, B.L. Taylor, J. Barlow, T. Akamatsu, L.A. Barrett, X.J. Zhao, R.R. Reeves, B.S. Stewart, K.X. Wang, Z. Wei, X.F. Zhang, L.T. Pusser, M. Richlen, J.R. Brandon and D. Wang. 2007. First human-caused extinction of a cetacean species?. Biology Letters. 3(5): 537-540.] Scope Thema's: Biologie > Zoogdieren Kernwoorden: Zoet water, I, Pacific, Cetacea Geografische spreiding I, Pacific [Marine Regions] Spreiding in de tijd
6 November 2006 - 13 December 2006 Taxonomic coverage
Cetacea [WoRMS]
Bijdrage door
Chinese Academy of Sciences; Institute of Hydrobiology, meer, data eigenaar
Gerelateerde datasets
Gepubliceerd in: OBIS-SEAMAP: Spatial Ecological Analysis of Megavertebrate Populations, meer
Publicatie
Gebaseerd op deze dataset
Zhao, X. et al. (2008). Abundance and conservation status of the Yangtze finless porpoise in the Yangtze River, China. Biol. Conserv. 141(12): 3006–3018. https://dx.doi.org/10.1016/j.biocon.2008.09.005, meer
URL's
Dataset informatie: Dataset status: Afgelopen
Data type: Data
Data oorsprong: Onderzoek: veldonderzoek
Metadatarecord aangemaakt: 2012-11-27
Informatie laatst gewijzigd: 2012-11-27
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