search
for
 About Bioline  All Journals  Testimonials  Membership  News  Donations


Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 37, No. 5, 2016, pp. 275-280
Bioline Code: zr16041
Full paper language: English
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 37, No. 5, 2016, pp. 275-280

 en What is the destiny of a threatened fish, Ptychobarbus chungtienensis check for this species in other resources , now that non-native weatherfishes have been introduced into Bita Lake, Shangri-La?
Jiang, Wan-Sheng; Qin, Tao; Wang, Wei-Ying; Zhao, Ya-Peng; Shu, Shu-Sen; Song, Wei-Hong; Chen, Xiao-Yong & Yang, Jun-Xing

Abstract

Biological invasion is a pervasive negative force of global change, especially in its effects on sensitive freshwater ecosystems. Even protected areas are usually not immune. Ptychobarbus chungtienensis check for this species in other resources is a threatened freshwater fish now almost confined to Bita Lake, in the Shangri-La region of Yunnan province, China. Its existence is threatened by the introduction of non-native weatherfishes ( Misgurnus anguillicaudatus check for this species in other resources and Paramisgurnus dabryanus check for this species in other resources ) by an unusual method known as ‘prayer animal release’. Periodic surveys revealed the ratio of invasive weatherfishes to P. chungtienensis has been increasing since the former species was first recorded from the lake in August, 2009. Ptychobarbus chungtienensis shows low genetic diversity in the relict Lake Bita population. Weatherfishes, however, have highly successful survival strategies. The degree of dietary overlap between the species is alarming and perhaps critical if food is found to be a limiting factor.

Keywords
Biological invasion; Threatened fish; Prayer animal release; Genetic diversity; Dietary

 
© Copyright 2016 - Zoological Research
Alternative site location: http://www.zoores.ac.cn/

Home Faq Resources Email Bioline
© Bioline International, 1989 - 2017, Site last up-dated on 16-Oct-2017.
Site created and maintained by the Reference Center on Environmental Information, CRIA, Brazil
System hosted by the Internet Data Center of Rede Nacional de Ensino e Pesquisa, RNP, Brazil