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Page 4257, results 106401 - 106425

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Associations of free-living bacteria and dissolved organic compounds in a plume of contaminated groundwater
Ronald W. Harvey, Larry B. Barber II
1992, Journal of Contaminant Hydrology (9) 91-103
Associations of free-living bacteria (FLB) and dissolved organic contaminants in a 4-km-long plume of sewage-contaminated groundwater were investigated. Abundance of FLB in the core of the plume (as delineated by maximum specific conductance) steadily decreased in the direction of flow from a point 0.25 km downgradient from the source to...
Petrogenesis of the Pd-rich intrusion at Salt Chuck, Prince of Wales island: an early Paleozoic Alaskan-type ultramafic body
R. A. Loney, G. R. Himmelberg
1992, Canadian Mineralogist (30) 1005-1022
The early Paleozoic Salt Chuck intrusion has petrographic and chemical characteristics that are similar to those of Cretaceous Alaskan-type ultramafic-mafic bodies. The intrusion is markedly discordant to the structure of the early Paleozoic Descon Formation, in which it has produced a rather indistinct contact aureole a few meters wide. Mineral...
Synthetic organic agrochemicals in the lower Mississippi River and its major tributaries--Distribution, transport and fate
W. E. Pereira, C.E. Rostad, T.J. Leiker
1992, Journal of Contaminant Hydrology (9) 175-188
The Mississippi River and its major tributaries transport herbicides and their degradation products from agricultural areas in the mid-western U.S.A. These compounds include atrazine and its degradation products (desethyl- and desisopropylatrazine), simazine, cyanazine, metolachlor, and alachlor and its degradation products (2-chloro-2′,6′-diethylacetanilide 2-hydroxy-2′,6′-diethylacetanilide and 2,6-diethylaniline). These compounds were identified and confirmed...
Change-in-ratio methods for estimating population size
Mark S. Udevitz, Kenneth H. Pollock
Dale R. McCullough, Reginald H. Barrett, editor(s)
1992, Book chapter, Wildlife 2001: Populations
Change-in-ratio (CIR) methods can provide an effective, low cost approach for estimating the size of wildlife populations. They rely on being able to observe changes in proportions of population subclasses that result from the removal of a known number of individuals from the population. These methods were first introduced in...
Prevalence of Renibacterium salmoninarum among downstream-migrating salmonids in the Columbia River
J. E. Sanders, J.J Long, C.K. Arakawa, J. L. Bartholomew, J. S. Rohovec
1992, Journal of Aquatic Animal Health (4) 72-75
Bacterial kidney disease (BKD) is an important contributor to mortality of salmonids in hatcheries in the Columbia River basin. However, the impact of BKD on the survival of downstream migrants is difficult to determine because there is little information on the disease-related mortality among these fish. In this study, the...
The Landers earthquake; preliminary instrumental results
L. Jones, J. Mori, E. Hauksson
1992, Earthquakes & Volcanoes (USGS) (23) 200-208
Early on the morning of June 28, 1992, millions of people in southern California were awakened by the largest earthquake to occur in the western United States in the past 40 yrs. At 4:58 a.m PDT (local time), faulting associated with the magnitude 7.3 earthquake broke through to earth's surface...
Waterfowl production on the Woodworth Station in south-central North Dakota, 1965-1981
K.F. Higgins, L.M. Kirsch, Albert T. Klett, H.W. Miller
1992, Resource Publication 180
During 17 years of study at the Woodworth, North Dakota study area, the percent of 548 wetland basin with water during 1-15 May ranged from 8 to 87 and averaged 56; waterfowl pair densities varied from 19 to 56/km2 and averaged 40/km2. Pond occupancy by duck pairs averaged 37% during...