Yangtze finless porpoise in Yangtze River, China 2006

Zhao Xiujiang

doi:10.15468/7x3wsj

Yangtze finless porpoise in Yangtze River, China 2006

Citation

Xiujiang, Z. 2013. Yangtze finless porpoise in Yangtze River, China 2006. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/559) on yyyy-mm-dd. https://doi.org/10.15468/7x3wsj accessed via GBIF.org on 2025-05-23.

Description

Original provider: Zhao Xiujiang, Institute of Hydrobiology, Chinese Academy of Sciences Dataset credits: Zhao Xiujiang, Institute of Hydrobiology, Chinese Academy of Sciences Wang Ding, Institute of Hydrobiology, Chinese Academy of Sciences Abstract: 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. Purpose: The purpose of this study was to search for baiji and evaluate the status of Yangtze finless porpoise. Supplemental information: 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).

Purpose

The purpose of this study was to search for baiji and evaluate the status of Yangtze finless porpoise.

Sampling Description

Study Extent

NA

Sampling

NA

Method steps

NA

Additional info

marine, harvested by iOBIS

Taxonomic Coverages

Scientific names are based on the Integrated Taxonomic Information System (ITIS).

Neophocaena phocaenoides asiaeorientalis
common name: Yangtze finless porpoise rank: subspecies

Geographic Coverages

Oceans

Bibliographic Citations

Contacts

Zhao Xiujiang
originator
position: Primary contact
Institute of Hydrobiology, Chinese Academy of Sciences
email: zhaoxiujiang@foxmail.com
homepage: http://www.ihb.ac.cn

OBIS-SEAMAP
metadata author
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: http://seamap.env.duke.edu

OBIS-SEAMAP
distributor
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: http://seamap.env.duke.edu

Zhao Xiujiang
owner
position: Primary contact
Institute of Hydrobiology, Chinese Academy of Sciences
email: zhaoxiujiang@foxmail.com
homepage: http://www.ihb.ac.cn

Zhao Xiujiang
administrative point of contact
position: Primary contact
Institute of Hydrobiology, Chinese Academy of Sciences
email: zhaoxiujiang@foxmail.com
homepage: http://www.ihb.ac.cn