نتایج جستجو برای: sander
تعداد نتایج: 1102 فیلتر نتایج به سال:
A leading hypothesis to explain the dramatic decline of Steller sea lions (Eumetopias jubatus) in western Alaska during the latter part of the 20th century is a change in prey availability due to commercial fisheries. We tested this hypothesis by exploring the relationships between sea lion population trends, fishery catches, and the prey biomass accessible to sea lions around 33 rookeries betw...
DNA sequences from the mitochondrial DNA control region are used to test the phylogeographic relationships among the pike-perches, Stizostedion (Teleostei: Percidae) and to examine patterns of variation. Sequences reveal two types of variability: single nucleotide polymorphisms and 6 to 14 copies of 10- to 11-base-pair tandemly repeated sequences. Numbers of copies of the tandem repeats are fou...
A survey of size-specific mercury (Hg) concentrations in game fish from a subset of Maryland fresh and estuarine waters was conducted, in which Hg concentrations in 112 fish from seven freshwater impoundments and three tidal and four estuarine locations in Chesapeake Bay and its tributaries were measured. Striped bass (Morone saxatilis) was the most intensively examined species. Of the fish exa...
The English-Wabigoon River system in Northwestern Ontario, Canada, was one of the most heavily mercury-contaminated waterways in the world due to historical discharges in the 1960s from a chlor-alkali plant. This study examines long-term (1970-2010) monitoring data to assess temporal trends in mercury contamination in Walleye, Northern Pike and Lake Whitefish, three species important for sport ...
Pacific cod (Gadus macrocephalus) inhabits the entire North Pacific region and supports the third largest fishery after walleye pollock (Theragra chalcogramma) and Atlantic cod (Gadus morhua). Although walleye pollock is often processed into various food products, Pacific and Atlantic cod are often preserved using salt for transport and consumption worldwide. Salt suppresses bacterial growth an...
Walleye pollock (Theragra chalcogramma) form persistent midwater and near-bottom schools in the daytime during the winter spawning season in the eastern Bering Sea (EBS). Two spawning areas in the EBS, north of Unimak Island and near the Pribilof Islands, are also the main fishing grounds. To study the schooling pattern of pollock and its impact on fishing behavior on these two fishing grounds,...
Sébastien Serres,1,4 Daniel C. Anthony,2 Yanyan Jiang,2 Kerry A. Broom,1 Sandra J. Campbell,2 Damian J. Tyler,1 Sander I. van Kasteren,3 Benjamin G. Davis,3 and Nicola R. Sibson1,4 1Department of Physiology, Anatomy, and Genetics, University of Oxford, Oxford OX1 3PT, United Kingdom, 2Department of Pharmacology, Oxford OX1 3QT, United Kingdom, 3Chemistry Research Laboratory, University of Oxfor...
D. S. Akerib, M. J. Attisha, L. Baudis, D.A. Bauer, A. I. Bolozdynya,* P. L. Brink, R. Bunker, B. Cabrera, D. O. Caldwell, C. L. Chang, R.M. Clarke, J. Cooley, M.B. Crisler, P. Cushman, F. DeJongh, R. Dixon, D. D. Driscoll,3,x J. Filippini, S. Funkhouser, R. J. Gaitskell, S. R. Golwala, D. Holmgren, L. Hsu, M. E. Huber, S. Kamat, R. Mahapatra, V. Mandic, P. Meunier, N. Mirabolfathi, D. Moore, S...
Nicholas C. Bambakidis, Kevin M. Cockroft, Joshua A. Hirsch, E. Sander Connolly, Sepideh Malformations: Misinterpretation of a Flawed Study The Case Against A Randomized Trial of Unruptured Brain Arteriovenous Print ISSN: 0039-2499. Online ISSN: 1524-4628 Copyright © 2014 American Heart Association, Inc. All rights reserved. is published by the American Heart Association, 7272 Greenville Avenue...
Comment on "An analytic solution of capillary rise restrained by gravity" by N. Fries and M. Dreyer.
The porous medium model of Green and Ampt, describing flow in porous media, appeared earlier than the capillary model of Washburn, although both lead to mathematically identical models. Here, the model of Green and Ampt was related to the Washburn model by an examination of the parameters involved in each. Fries et al. [N. Fries, M. Dreyer, J. Colloid Interface Sci. 320 (2008) 259-263] presente...
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