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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 34, No. 4, 2013, pp. 267-280
Bioline Code: zr13053
Full paper language: English
Document type: Review Article
Document available free of charge

Zoological Research, Vol. 34, No. 4, 2013, pp. 267-280

 en Overview of the artificial enhancement and release of endemic freshwater fish in China
YANG, Jun-Xing; PAN, Xiao-Fu; CHEN, Xiao-Yong; WANG, Xiao-Ai; ZHAO, Ya-Peng; LI, Jian-You & LI, Zai-Yun


Due to declining fishery resources and the growing development of conservation aquaculture, artificial freshwater fish enhancement and releasing have begun to replace traditional means of recovering endemic and rare fish populations. Artificial proliferation can be beneficial both to endemic fish conservation and technical bottleneck breakthroughs. This overview presents a review of the latest research and the underlying principles behind the conservation implementation processes, as well as the research status of artificial enhancement and release of endangered freshwater fish species in China, such as Mylopharyngodon piceus check for this species in other resources , Ctenopharyngodon idellus check for this species in other resources , Hypophthalmichthys molitrix check for this species in other resources , H. nobilis check for this species in other resources , Acipenser sinensis check for this species in other resources , Myxocyprinus asiaticus check for this species in other resources , and Sinocyclocheilus grahami check for this species in other resources . The overview also presents evolutionarily significant units, sperm and egg quality, and cryopreservation technologies and cell cultures used in artificial enhancement and release, which help standardize genetic management and minimize the genetic differences between hatched and wild populations. Monitoring fish from cultivation to release is essential to evaluating wild population recovery and adjusting recovery plans. Moreover, the remaining problems of artificial releases are discussed in-depth, touching on issues such as the limitations of domestic hatching, the base number of wild populations necessary to the environment, the proper size at which to release juveniles’ into the environment, the geographic confusion of populations, the contradictions in commercial fish selection and fish conservation, and “exotic species” invasion.

Freshwater fishes; Artificial propagation; Enhancement and release; China

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