Tolerance of developing salmonid eggs and fry to nitrate exposure
John W. Kincheloe, Gary A. Wedemeyer, David L. Koch
1979, Bulletin of Environmental Contamination and Toxicology (23) 575-578
This paper reports on tests which show significant effects on early salmonid life stages of nitrates at levels commonly found in groundwaters in geographical areas that are influenced by fertilizer application. It has long been known, from fish cultural experience, that in certain site specific locations, chronic problems can be...
Annual report of the USGS Mission, Kingdom of Saudi Arabia : for the first year of the fifth extension of the USGS-MPMR Work Agreement, fiscal year 1398 : 1 Rajab 1398-30 Jumad thani 1399 (6 June 1978-26 May 1979)
U.S. Geological Survey Saudi Arabia Mission
1979, Report
Prepared for Directorate General of Mineral Resources, Ministry of Petroleum and Mineral Resources...
The Galilean satellites and Jupiter: Voyager 2 imaging science results
B.A. Smith, L.A. Soderblom, R. Beebe, J. Boyce, G. Briggs, M. Carr, S.A. Collins, A.F. Cook II, G. E. Danielson, M. E. Davies, G.E. Hunt, A. Ingersoll, T. V. Johnson, H. Masursky, J. McCauley, D. Morrison, Tobias Owen, C. Sagan, E.M. Shoemaker, R. Strom, V.E. Suomi, J. Veverka
1979, Science (206) 927-950
Voyager 2, during its encounter with the Jupiter system, provided images that both complement and supplement in important ways the Voyager 1 images. While many changes have been observed in Jupiter's visual appearance, few, yet significant, changes have been detected in the principal atmospheric currents. Jupiter's ring system...
Chemical changes in an industrial waste liquid during post-injection movement in a limestone aquifer, Pensacola, Florida
G. G. Ehrlich, E.M. Godsy, C.A. Pascale, John Vecchioli
1979, Groundwater (17) 562-573
An industrial waste liquid containing organonitrile compounds and nitrate ion has been injected into the lower limestone of the Floridan aquifer near Pensacola, Florida since June 1975. Chemical analyses of water from monitor wells and backflow from the injection well indicate that organic carbon compounds are converted to CO2 and...
Magnitude of shear stress on the San Andreas fault: Implications of a stress measurement profile at shallow depth
Mark D. Zoback, J.C. Roller
1979, Science (206) 445-447
A profile of measurements of shear stress perpendicular to the San Andreas fault near Palmdale, California, shows a marked increase in stress with distance from the fault. The pattern suggests that shear stress on the fault increases slowly with depth and reaches a value on the order of the average...
Robust estimation of population size when capture probabilities vary among animals
K.P. Burnham, W.S. Overton
1979, Ecology (60) 927-936
A model is given for multiple recapture studies on closed populations which allows capture probabilities to vary among individuals. The capture probability of each individual is assumed to be constant over time. Based on this model we give a nonparametric estimation procedure for population size. The estimator...
Effects of karst and geologic structure on the circulation of water and permeability in carbonate aquifers
V. T. Stringfield, J. R. Rapp, R.B. Anders
1979, Journal of Hydrology (43) 313-332
The results of the natural processes caused by solution and leaching of limestone, dolomite, gypsum, salt and other soluble rocks, is known as karst. Development of karst is commonly known as karstification, which may have a pronounced effect on the topography, hydrology and environment, especially where such karst features as...
Measurement of fluid velocity using temperature profiles: Experimental verification
K. Cartwright
1979, Journal of Hydrology (43) 185-194
Temperature profiling has been used to predict the rate and direction of groundwater movement. A controlled field experiment was conducted to ascertain the validity of the rate calculations made using this method. The vertical velocity, or leakage, of groundwater between two aquifers was calculated utilizing both hydrologic and temperature measurements...
Contribution of groundwater modeling to planning
J.E. Moore
1979, Journal of Hydrology (43) 121-128
The consideration of groundwater in water-resource planning frequently has been neglected because many planners believed that groundwater could not be adequately evaluated in terms of availability, quality, cost of development, or effect of development on the surface-water supply. The development of predictive groundwater models now provides the water planner with...
Simulated changes in potentiometric levels resulting from groundwater development for phosphate mines, west-central Florida
W.E. Wilson, J. M. Gerhart
1979, Journal of Hydrology (43) 491-515
A digital model of two-dimensional groundwater flow was used to predict changes in the potentiometric surface of the Floridan aquifer resulting from groundwater development for proposed and existing phosphate mines during 1976-2000. The modeled area covers 15,379 km2in west-central Florida.In 1975, groundwater withdrawn from the Floridan aquifer for irrigation, phosphate...
The parasitic coelenterate, Polypodium hydriforme Ussov, from the eggs of the American acipenseriform Polyodon Spainthula
E.V. Raikova, V.C. Suppes, G. L. Hoffman
1979, Journal of Parasitology (65) 804-810
No significant differences in macro- and micromorphology were found between the parasitic stolon and free-living polyps of Polypodium sp. obtained from infected eggs of the North American acipenseriform fish Polyodon spathula and corresponding developmental stages of Polypodium hydriforme Ussov, parasitic in the Volga sterlet (Acipenser ruthenus). Therefore, both the American...
Hydraulic potential in Lake Michigan bottom sediments
K. Cartwright, C.S. Hunt, G.M. Hughes, R.D. Brower
1979, Journal of Hydrology (43) 67-78
The magnitude and direction of groundwater flux in the bottom sediments of Lake Michigan were deduced from measurements made during three shipboard cruises between 1973 and 1975. These factors affect the geochemical environment of the sediments and therefore the distribution of trace elements reported to be present. The near-shore, sandy-bottom...
Histopathology of yearling sockeye salmon (Oncorhynchus nerka) infected with infectious hematopoietic necrosis (IHN)
William T. Yasutake
1979, Fish Pathology (14) 59-64
Infectious hematopoietic necrosis (IHN) is generally believed to be a virus disease of very young salmonids. In recent years there have been increasing numbers of unpublished reports that this disease has been occurring uncharacteristically in fish as old as 7-14 months. Sockeye salmon (Oncorhynchus nerka) of this age the histological...
Distributary channels, sand lobes, and mesotopography of Navy Submarine Fan, California Borderland, with applications to ancient fan sediments
William Normark, D.J.W. Piper, Gordon R. Hess
1979, Sedimentology (26) 749-774
The deep-tow instrument package of Scripps Institution of Oceanography provides a unique opportunity to delineate small-scale features of a size comparable to those features usually described from ancient deep-sea fan deposits. On Navy Fan, the deep-tow side-scanning sonar readily detected steep channel walls and steps and terraces within channels. The...
Earthquakes near Parkfield, California: Comparing the 1934 and 1966 sequences
W. H. Bakun, T.V. McEvilly
1979, Science (205) 1375-1377
Moderate-sized earthquakes (Richter magnitude ML 5 1/2) have occurred four times this century (1901, 1922, 1934, and 1966) on the San Andreas fault near Parkfield in central California. In many respects the June 1966 sequence was a remarkably detailed repetition of the June 1934 sequence, suggesting a recurring recognizable pattern...
Submarine seep of carbon dioxide in Norton Sound, Alaska
K.A. Kvenvolden, K. Weliky, H. Nelson, D.J. Des Marais
1979, Science (205) 1264-1266
Earlier workers have described a submarine gas seep in Norton Sound having an unusual mixture of petroleum-like, low-molecular-weight hydrocarbons. Actually, only about 0.04 percent of the seeping gas is hydrocarbons and 98 percent is carbon dioxide. The isotopic compositions of carbon dioxide (δ13CPDB = –2.7 per mil) and methane (δ13CPDB = –36...
Fresh-water cementation of a 1,000-year-old oolite
R. B. Halley, P. M. Harris
1979, Journal of Sedimentary Petrology (49) 969-987
Calcite cementation of aragonite ooid sand is producing oolite on Joulters Cays, Bahamas. During the last 1,000 years, calcite cement has formed at an average rate of between 27 and 55 cm3 /m3 /yr and is derived from dissolution of ooid aragonite in fresh water. The dissolution-reprecipitation of carbonate minerals...
A parametric generalization of the Hayne estimator for line transect sampling
Kenneth P. Burnham
1979, Biometrics (35) 587-595
The Hayne model for line transect sampling is generalized by using an elliptical (rather than circular) flushing model for animal detection. By assuming the ration of major and minor axes lengths is constant for all animals, a model results which allows estimation of population density based directly upon sighting...
Nonparametric estimation of plant density by the distance method
S.A. Patil, K.P. Burnham, J.L. Kovner
1979, Biometrics (35) 597-604
A relation between the plant density and the probability density function of the nearest neighbor distance (squared) from a random point is established under fairly broad conditions. Based upon this relationship, a nonparametric estimator for the plant density is developed and presented in terms of order statistics. Consistency...
A microcomputer based system for current-meter data acquisition
R. T. Cheng, J. W. Gartner
1979, Conference Paper, Proceedings of Oceans
The U.S. Geological Survey is conducting current measurements as part of an interdisciplinary study of the San Francisco Bay estuarine system. The current meters used in the study record current speed, direction, temperature, and conductivity in digital codes on magnetic tape cartridges. Upon recovery of the current meters, the data...
Undersea topography and distribution of dolphins of the genus Delphinus in the Southern California Bight
Clifford A. Hui
1979, Journal of Mammalogy (60) 521-527
Aerial surveys totalling 21,902 km were analyzed in the Southern California Bight. Although the genus Delphinus is easily recognizable from aircraft, the different species are not detectable in these flights. Delphinus occur more frequently in areas of high relief than in areas of low relief. The depth of the water does not appear to...
Irrigation in Michigan, 1977
D.J. Bedell, Ron L. Van Til
1979, Report
No abstract available....
Oil and gas in offshore tracts: Estimates before and after drilling
M.F. Uman, W.R. James, H.R. Tomlinson
1979, Science (205) 489-491
Estimates of volumes of recoverable hydrocarbons underlying offshore tracts are made by the U.S. Geological Survey prior to the sale of leases and after drilling on those leases. Comparisons of these estimates show a moderate positive correlation and no evidence for relative bias, although the precision of the predictions is...
Risk preferences and flood insurance
Emil D. Attanasi, Michael R. Karlinger
1979, American Journal of Agricultural Economics (61) 490-495
A detailed theoretical model characterizing the individual's decision to purchase flood insurance is specified and the magnitude of the risk parameter is estimated using data based on transactions of flood insurance purchases. Empirical results for several samples of this subset of the general population indicated that consumers exhibited a relatively...
Comparison of the TRM of the Yellowstone Group and the DRM of some Pearlette ash beds
Richard L. Reynolds
1979, Journal of Geophysical Research B: Solid Earth (84) 4525-4532
Air fall ash beds (Pearlette) originating from rhyolitic eruptions in the Yellowstone‐Island Park region of Wyoming and Idaho are discontinuous but widespread throughout the western United States. Accumulation and deposition of ashes occurred in low‐energy fluvial and lacustrine environments. These ash beds have been correlated, according to their chemistry and...
