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Page 4841, results 121001 - 121025

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Sampling nearshore estuarine fishes with rotenone
G.C. Matlock, J.E. Weaver, A.W. Green
1982, Transactions of the American Fisheries Society (111) 326-331
Sampling with rotenone is an effective method for providing abundance estimates of estuarine fishes at nearshore locations. However, the determination of recovery rates for individual species is critical for estimating abundance by this technique. Recovery rates in this study varied greatly among species, but did not vary among station types...
Lakes and lake-like waters of the Hawaiian Archipelago
J. A. Maciolek
1982, Occasional Papers Bernice P. Bishop Museum (25) 1-14
This summary of Hawaiian lacustrine limnology is based on 12 years of field and literature surveys of archipelagic inland waters. Lakes here are distinguished from other standing waters by limits on surface oceanic area (> 0.1 ha) and depth (> 2 m), and by the absence of flatural surface oceanic connection....
Geomagnetic Workshop
John M. DeNoyer, J.C. Cain, S. Banerjee, E.R. Benton, Richard J. Blakely, Robert S. Coe, C.G.A. Harrison, Malcolm J. S. Johnston, R.D. Regan
1982, Eos, Transactions, American Geophysical Union (63) 645-648
A workshop on geomagnetism, sponsored by the Geologic Division of the U.S. Geological Survey, was held in the Denver West Office Complex in Golden, Colorado, April 13–15, 1982. There were 90 registered participants from government agencies, academic institutions, and industry.This effort stemmed from the realization that geomagnetism, once a small...
Organochlorine residues and shell thinning in Oregon seabird eggs
Charles J. Henny, Lawrence J. Blus, Richard M. Prouty
1982, Murrelet (63) 15-21
A single egg was collected at 62 nests of 10 seabird species from Oregon in 1979. The eggs were analyzed for organochlorine contaminants; contemporary shell thickness was compared with eggshells collected during earlier time periods. Concentrations of DDE and PCB's in 1979 were generally low with the most contaminated species...
On conducting the modified ‘Slug’ test in tight formations
C.E. Neuzil
1982, Water Resources Research (18) 439-441
The method introduced by Bredehoeft and Papadopulos (1980) for conducting a modified ‘slug’ test in tight formations does not assure the condition of approximate equilibrium necessary at the start of the test. In addition, compressibility in the shut-in well can be significantly larger than the compressibility of water, which Bredehoeft...
Hematology of the West Indian manatee (Trichechus manatus)
W. Medway, D.J. Black, G. B. Rathbun
1982, Veterinary Clinical Pathology (11) 11-15
Hemograms on blood obtained from 10 clinically normal West Indian Manatees (Trichechus manatus) were studied. The red cells were large and in lower number than in most terrestrial species. The manatee does not have a neutrophil as is present in most species, but it has a heterophil whose granules stain...
Habitat models for land-use planning: assumptions and strategies for development
Adrian H. Farmer, Michael J. Armbruster, James W. Terrell, Richard L. Schroeder
1982, Book, Transactions of the Forty-seventh North American Wildlife and Natural Resources Conference: Population pressures and natural resource management needs
Wildlife managers have long recognized that management goals must be constrained by the availability and suitability of habitat. This recognition, combined with ever increasing land development pressures, has resulted in environmental legislation emphasizing systematic approaches to collection and analysis of habitat information. Wildlife planners have responded with a...
Lumber spill in central California waters: Implications for oil spills and sea otters
G.R. VanBlaricom, R.J. Jameson
1982, Science (215) 1503-1505
A large quantity of lumber was spilled in the ocean off central California during the winter of 1978, and it spread through most of the range of the threatened California sea otter population within 4 weeks. The movement rates of lumber were similar to those of oil slicks observed elsewhere....
Mid-Paleozoic age of the Roberts thrust unsettled by new data from northern Nevada
Keith B. Ketner, Fred J. Smith Jr.
1982, Geology (10) 298-303
The Roberts thrust is a major thrust in Nevada on which Ordovician to Devonian siliceous facies rocks were carried more than 80 km eastward over contemporaneous carbonate facies. For more than two decades, a mid-Paleozoic age for this structure has been widely accepted. The bases for dating the thrust are...
Molecular size of aquatic humic substances
E.M. Thurman, R.L. Wershaw, Ronald L. Malcolm, D.J. Pinckney
1982, Organic Geochemistry (4) 27-35
Aquatic humic substances, which account for 30 to 50% of the organic carbon in water, are a principal component of aquatic organic matter. The molecular size of aquatic humic substances, determined by small-angle X-ray scattering, varies from 4.7 to 33 Å in their radius of gyration, corresponding to a molecular...
Use of blood levels to infer carcass levels of contaminants
Gary L. Hensler, William C. Stout
1982, Archives of Environmental Contamination and Toxicology (11) 235-238
Inferences may be made about the carcass levels of a contaminant based on the contaminant level in blood samples. A method is given for comparing such populations that utilizes bivariate normal distributions and their principal axes, thereby avoiding a dilemma arising from the use of regression techniques. Confidence intervals and...
Ingestion of petroleum by breeding mallard ducks: Some effects on neonatal progeny
J. Gorsline, W. N. Holmes
1982, Archives of Environmental Contamination and Toxicology (11) 147-153
Breeding female mallard ducks consuming petroleum-contaminated food show significant induced increases in the naphthalene-metabolizing properties of microsomes prepared from their livers. Food contaminated with South Louisiana crude oil was more potent than food contaminated with similar concentrations of Prudhoe Bay crude oil and in each instance food contaminated with 3%...
Age determination of late Pleistocene marine transgression in western Alaska
Barney J. Szabo
1982, Marine Geology (46) M1-M8
Dating molluscs from sediments representing the Kotzebuan marine transgression in Alaska yields an average uranium-series age of 104,000 ± 22,000 yrs B.P. This and other selected Pleistocene marine deposits of western Alaska are tentatively correlated with radiometrically dated units of eastern Baffin Island, Arctic Canada....
Cenozoic silicoflagellates from offshore Guatemala, Deep Sea Drilling Project Site 495
David Bukry
1982, Initial Reports of the D.S.D.P. (67) 425-445
Diverse lower Miocene to Pleistocene silicoflagellate assemblages occur at Deep Sea Drilling Project Site 495, but many samples are dominated by one or two taxa. Low-latitude zonation can be applied throughout. Cool-indicating Distephanus speculum s. ampl. is only abundant in the upper Miocene; however, relative paleotemperature values (Ts) suggest temperature...
Paleomagnetic study of some Cretaceous and Tertiary sedimentary rocks of the Klamath Mountains province, California
Edward A. Mankinen, William P. Irwin
1982, Geology (10) 82-87
Paleomagnetic investigation of Cretaceous outliers and Tertiary sedimentary strata of the Klamath Mountains province, and of onlapping Cretaceous strata, has shown the rocks to be largely remagnetized. Samples studied are from the Upper Jurassic to Upper Cretaceous Great Valley sequence, Upper Cretaceous Hornbrook Formation, Eocene Montgomery Creek Formation, and Oligocene(?)...
A new look at the Saturn system: The Voyager 2 images
B.A. Smith, L. Soderblom, R. Batson, P. Bridges, J. Inge, H. Masursky, E. Shoemaker, R. Beebe, J. Boyce, G. Briggs, A. Bunker, S.A. Collins, C.J. Hansen, T. V. Johnson, J.L. Mitchell, R.J. Terrile, A.F. Cook II, J. Cuzzi, James B. Pollack, G. E. Danielson, A.P. Ingersoll, M. E. Davies, G.E. Hunt, D. Morrison, Tobias Owen, C. Sagan, J. Veverka, R. Strom, V.E. Suomi
1982, Science (215) 504-537
Voyager 2 photography has complemented that of Voyager I in revealing many additional characteristics of Saturn and its satellites and rings. Saturn's atmosphere contains persistent oval cloud features reminiscent of features on Jupiter. Smaller irregular features track out a pattern of zonal winds that is symmetric about...