干旱区生态环境知识资源中心(Arid): Big Spring Spinedace and Associated Fish Populations and Habitat Conditions in Condor Canyon, Meadow Valley Wash, Nevada.

Arid

报告编号	PB2011114755
	Big Spring Spinedace and Associated Fish Populations and Habitat Conditions in Condor Canyon, Meadow Valley Wash, Nevada.
	Jezorek, I. G; Connolly, P. J; Munz, C. A; Dixon, C.
英文摘要	This project was designed to document habitat conditions and populations of native and non-native fish within the 8-kilometer Condor Canyon section of Meadow Valley Wash, Nevada, with an emphasis on Big Spring spinedace (Lepidomeda mollispinis pratensis). Other native fish present were speckled dace (Rhinichthys osculus) and desert sucker (Catostomus clarki). Big Spring spinedace were known to exist only within this drainage and were known to have been extirpated from a portion of their former habitat located downstream of Condor Canyon. Because of this extirpation and the limited distribution of Big Spring spinedace, the U.S. Fish and Wildlife Service listed this species as threatened under the Endangered Species Act in 1985. Prior to our effort, little was known about Big Spring spinedace populations or life histories and habitat associations. In 2008, personnel from the U.S. Geological Surveys Columbia River Research Laboratory began surveys of Meadow Valley Wash in Condor Canyon. Habitat surveys characterized numerous variables within 13 reaches, thermologgers were deployed at 9 locations to record water temperatures, and fish populations were surveyed at 22 individual sites. Additionally, fish were tagged with Passive Integrated Transponder (PIT) tags, which allowed movement and growth information to be collected on individual fish. The movements of tagged fish were monitored with a combination of recapture events and stationary in-stream antennas, which detected tagged fish.
英文关键词	Fishery surveys Population dynamics Habitat Fish tagging Transponders Nevada Big Spring Spinedace Meadow Valley Wash(Nevada) Condor canyon
出版年	2011
语种	英语
国家	United States
URL	http://r.cnki.net/KCMS/detail/detail.aspx?DbCode=KJBG&dbname=KJBGW&filename=5a00410331c97d1c3897a6c3
来源机构	United States Geological Survey
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/273790
推荐引用方式 GB/T 7714	Jezorek, I. G,Connolly, P. J,Munz, C. A,et al. Big Spring Spinedace and Associated Fish Populations and Habitat Conditions in Condor Canyon, Meadow Valley Wash, Nevada.,2011.