Download or read book Relative Distribution and Abundance of Fishes and Crayfish in 2010 and 2014 Prior to Saltcedar Tamarix Ssp Removal in the Amargosa River Canyon Southeastern California written by Mark E. Hereford and published by . This book was released on 2016 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Relative Abundance and Distribution of Fishes and Crayfish at Ash Meadows National Wildlife Refuge Nye County Nevada 2010 11 written by U S Department of the Interior and published by . This book was released on 2014-03-30 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ash Meadows National Wildlife Refuge (AMNWR) was established by the U.S. Fish and Wildlife Service (with the assistance of The Nature Conservancy) in 1984 to protect one of the highest concentrations of endemic flora and fauna in North America (Pister, 1985; Sada, 1990). Prior to federal acquisition, Ash Meadows had been anthropogenically altered, and non-native species had been introduced to the detriment of native species; reports and published literature document the negative effects to the Ash Meadows flora and fauna (Deacon and others, 1964; U.S. Department of the Interior, 1971; Landye, 1973; Pister, 1974; Soltz and Naiman, 1978; Taylor, 1980; Williams and others, 1985; Williams and Sada, 1985; Baugh and others, 1986; Hershler and Sada, 1987; Knight and Clemmer, 1987; Sada, 1990; Deacon and Williams, 1991; Scoppettone and others, 2005; Kennedy and others, 2006).

Download or read book Relative Abundance and Distribution of Fishes and Crayfish at Ash Meadows National Wildlife Refuge Nye County Nevada 2007 08 written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-30 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study provides baseline data of native and non-native fish populations in Ash Meadows National Wildlife Refuge (NWR), Nye County, Nevada, that can serve as a gauge in native fish enhancement efforts. In support of Carson Slough restoration, comprehensive surveys of Ash Meadows NWR fishes were conducted seasonally from fall 2007 through summer 2008. A total of 853 sampling stations were created using Geographic Information Systems and National Agricultural Imagery Program. In four seasons of sampling, Amargosa pupfish (genus Cyprinodon) was captured at 388 of 659 stations. The number of captured Amargosa pupfish ranged from 5,815 (winter 2008) to 8,346 (summer 2008).

Download or read book Relative Abundance and Distribution of Fishes and Crayfish at Ash Meadows National Wildlife Refuge Nye County Nevada 2010 11 written by Gary Scoppettone and published by . This book was released on 2011 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Relative Abundance and Distribution of Fishes and Crayfish at Ash Meadows National Wildlife Refuge Nye County Nevada 2007 08 written by Gary Scoppettone and published by . This book was released on 2011 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geographic Distribution Ecological Impact and Conservation Strategies for North American Crayfish written by Thomas Simon and published by Nova Science Publishers. This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a contribution to the conservation of members of the family Cambaridae. This book is focused on the evaluation of geographic changes caused by landscape scale and land use change that has impacted the ecology of North American crayfish species. The book includes chapters on geographic distributions, conservation strategies, and effects of contaminants on crayfish structure and function. Contributors include a variety of students associated with the Editor, as well as original contributions from the Editor's colleagues. From the conceptual frameworks to the case studies, Geographic Distribution, Ecological Impact, and Conservation Strategies for North American Crayfish will provide important considerations to assist in the conservation and protection of crayfish, with emphasis on stressors and actions necessary to protect and restore crayfish habitats and populations. This book is necessary for environmental and natural resource managers, researchers, and governmental agencies tasked with the protection, restoration, and management of wildlife populations.

Download or read book Habitat Distribution and Abundance of Crayfishes in Two Florida Spring fed Rivers written by Tiffani Manteuffel and published by . This book was released on 2016 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crayfish are an economically and ecologically important invertebrate, however, research on crayfish in native habitats is patchy at best, including in Florida, even though the Southeastern U.S. is one of the most speciose areas globally. This study investigated patterns of abundance and habitat distribution of two crayfishes (Procambarus paeninsulanus and P. fallax) in two Florida spring-fed rivers (Wakulla River and Silver River, respectively). Study sites were surveyed once each season from April 2015 to March 2016 with baited minnow traps checked every other day, four times each survey. Habitat and environmental parameters evaluated included dominant vegetation or bottom type, percent cover, organic matter content, water depth, moon illumination and dissolved oxygen. Abundance was estimated with N-mixture models. Model selection judged the relative evidence between hypotheses relating habitat and environmental covariates to crayfish abundance. P. paeninsulanus distribution and abundance in Wakulla River was explained by time of year, dissolved oxygen and dominant bottom and vegetation type. P. fallax distribution and abundance in Silver River was explained by time of year and percent coverage of vegetation. Detection of P. paeninsulanus was higher than P. fallax and abundance of P. paeninsulanus was more heterogenous than P. fallax (6-18 versus 12-14 per site in summer survey). Distribution of P. paeninsulanus as described by vegetation and bottom type also seems to follow heterogeneity in management areas in Wakulla River. Results will assist managers in understanding potential impact of herbicidal control of Hydrilla verticillata on crayfish. This study also fills knowledge gaps on Florida crayfish natural history and ecology.

Download or read book Ecology of Red Maple Swamps in the Glaciated Northeast written by U.S. Fish and Wildlife Service and published by . This book was released on 1993 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: