Life Sciences Commons^™

An Analysis Of Differential Delayed Mortality Experienced By Stream-Type Chinook Salmon Of The Snake River, Nick Bouwes, Howard Schaller, Phaedra Budy, Charles Petrosky, Russ Kiefer, Paul Wilson, Olaf Langness, Earl Weber, Eric Tinus

United States Fish and Wildlife: Staff Publications

In the Anadromous Fish Appendix of the US Army Corp of Engineers (USACE) Environmental Impact Statement on the Lower Snake River Hydrosystem Alternatives for recovery of Snake River salmon and steelhead (hereafter referred to as "A-Fish"), the National Marine Fisheries Service (NMFS) suggested that transportation effectiveness of spring/summer chinook may have improved markedly in recent years. The NMFS conclusion was based on estimates of 'D'-values (the differential delayed survival rate between transported fish and fish that migrated in-river) for 1994-1995 (NMFS, 1999). NMFS suggested, if 'D' is high (estimated in A-Fish at 0.8) and extra mortality of in-river and transported …

Background Contaminants Evaluation Of Fort Niobrara And Valentine National Wildlife Refuge, Karen J. Nelson, Brent J. Esmoil

United States Fish and Wildlife: Staff Publications

The objectives of this study were to determine background concentrations of metals and organic compounds in biotic and abiotic components of the Fort NiobraralValentine National Wildlife Refuge (NWR) Complex and document these results to utilize as baseline information for future contaminants investigations. To establish this baseline, sediment, water, and biotic samples (fish, double crested cormorant eggs, and vegetation) were collected from Fort Niobrara and Valentine National Wildlife Refuge in 1995 and tested for inorganic and organic contaminants. lnorganics were determined by inductively coupled plasma atomic emission spectrophotometer (lCP) scans. Arsenic and selenium were analyzed by atomic absorption spectrophotometry (AAS). Mercury …

Monitoring Of Selenium Concentrations In Biota From The Kendrick Reclamation Project, Natrona County, Wyoming 1992 - 1996, Pedro Ramirez Jr., Kimberly Dickerson

United States Fish and Wildlife: Staff Publications

Selenium is bioaccumulating in fish and aquatic birds inhabiting the Kendrick Reclamation Project (Kendrick) in Natrona County, Wyoming as a result of mobilization associated with irrigation return flows. Field studies conducted in the 1980’s by the U.S. Geological Survey (Survey) and the U.S. Fish and Wildlife Service (Service) as part of the Department of Interior’s National Irrigation Water Quality Program (NIWQP) revealed elevated selenium concentrations in water, sediment and biota at Kendrick and immediately downstream in the North Platte River. Selenium concentrations found in biota exceeded levels known to cause mortality and embryonic deformities in birds and impaired reproduction in …

Giant Panda Ailuropoda Melanoleuca

United States Fish and Wildlife: Staff Publications

What animal is black and white and loved all over the world? If you guessed the giant panda, you’re right! The giant panda is also known as the panda bear or bamboo bear, or in Chinese as Daxiongmao, the “large bear cat.” In fact, its scientific name means “black and white cat-footed animal.”

Giant pandas are found only in the mountains of central China—in small isolated areas of the north and central portions of the Sichuan Province, in the mountains bordering the southernmost part of Gansu Province and in the Qinling Mountains of the Shaanxi Province.

Giant pandas live …