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Invasive Predators: A Synthesis Of The Past, Present, And Future, William C. Pitt, Gary W. Witmer

USDA Wildlife Services: Staff Publications

Invasive predators have had devastating effects on species around the world and their effects are increasing. Successful invasive predators typically have a high reproductive rate, short generation times, a generalized diet, and are small or secretive. However, the probability of a successful invasion is also dependent on the qualities of the ecosystem invaded. Ecosystems with a limited assemblage of native species are the most susceptible to invasion provided that habitat and climate are favorable. In addition, the number of invasion opportunities for a species increases the likelihood that the species will successfully establish. The list of routes of entry or …

Identification And Characterization Of Fep15, A New Selenocysteine-Containing Member Of The Sep15 Protein Family, Sergey V. Novoselov, Deame Hua, A. V. Lobanov, Vadim N. Gladyshev

Vadim Gladyshev Publications

Sec (selenocysteine) is a rare amino acid in proteins. It is co-translationally inserted into proteins at UGA codons with the help of SECIS (Sec insertion sequence) elements. A full set of selenoproteins within a genome, known as the selenoproteome, is highly variable in different organisms. However, most of the known eukaryotic selenoproteins are represented in the mammalian selenoproteome. In addition, many of these selenoproteins have cysteine orthologues. Here, we describe a new selenoprotein, designated Fep15, which is distantly related to members of the 15 kDa selenoprotein (Sep15) family. Fep15 is absent in mammals, can be detected only in fi sh …

Ecology Of The Missouri River. Progress Report, Dingell-Johnson Project F-75-R-24, Supplement I - Missouri River Creel Survey, Camp Creek To Kansas State Line, 1 April Through 13 October 2006., Gerald Mestl

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

This report describes Missouri River activities and results related to a channelized Missouri River creel survey conducted from 29 March through 10 October 2003. This is the fourth of a planned annual creel survey to be conducted on alternating sections of the channelized Missouri River to measure changes in recreational fishing activity, especially those changes due to large scale habitat restoration efforts. Future reports will contain additional analyses of these data. Anglers spent over 30,000 hours fishing the Missouri River from Camp Creek (rk 883.5) to the Kansas state line (rk 790.2) during the survey period. Effort peaked during the …

The Fathead Minnow In Aquatic Toxicology: Past, Present And Future, Gerald T. Ankley, Daniel L. Villeneuve

United States Environmental Protection Agency: Staff Publications

This paper reviews the roles of the fathead minnow (Pimephales promelas) as a small fish model in the field of aquatic toxicology. The species has been (and is) extensively used both for regulatory testing and research, especially in North America. For example, tests with the fathead minnow, ranging from 48-h lethality through partial and full life-cycle assays, are routinely used for regulatory programs aimed at assessing potential risks of new chemicals such as high-production volume materials and pesticides, as well as impacts of complex mixtures like effluents. The species also has been used for a wide variety of …

G06-1033 It's Snack Time, Linda S. Boeckner, Karen Schledewitz

University of Nebraska-Lincoln Extension: Historical Materials

Snacks are the foods we eat outside of a more structured meal setting. Snacking can be a part of a healthy eating plan or it can be a harmful habit. The difference between harmful and healthy snacking is up to you. Think about what, when, how often and how much you eat snacks.

In this NebGuide, learn how snacks affect your overall diet and how to select healthful snacks that meet your dietary needs.

A Screening-Level Assessment Of Lead, Cadmium, And Zinc In Fish And Crayfish From Northeastern Oklahoma, Usa, Christopher J. Schmitt, William G. Brumbaugh, Gregory L. Linder, Jo Ellen Hinck

United States Geological Survey: Staff Publications

The objective of this study was to evaluate potential human and ecological risks associated with metals in fish and crayfish from mining in the Tri-States Mining District (TSMD). Crayfish (Orconectes spp.) and fish of six frequently consumed species (common carp, Cyprinus carpio; channel catfish, Ictalurus punctatus; flathead catfish, Pylodictis olivaris; largemouth bass, Micropterus salmoides; spotted bass, M. punctulatus; and white crappie, Pomoxis annularis) were collected in 2001–2002 from the Oklahoma waters of the Spring River (SR) and Neosho River (NR), which drain the TSMD. Samples from a mining-contaminated site in eastern Missouri and …