Concentrations of dissolved and particulate Polychlorinated Biphenyls in water from the Saginaw River, Michigan
David A. Verbrugge, John P. Giesy, Miguel A. Mora, Lisa L. Williams, Ronald Rossmann, Russell A. Moll, Marc Tuchman
1995, Journal of Great Lakes Research (21) 219-233
The Saginaw River receives water from a major drainage basin in the east-central portion of the lower peninsula of Michigan. Historically the river has been contaminated with polychlorinated biphenyls (PCBs) from several sources. The present study was conducted to determine the concentrations of PCBs in both the dissolved and particulate...
The Basin and Range province
Thomas E. Parsons
K.H. Olsen, editor(s)
1995, Book chapter, Continental rifts: Evolution, structure, and tectonics
No abstract available....
Age-at-maturity estimates for Atlantic coast female striped bass
David L. Berlinsky, Mary C. Fabrizio, John F. O'Brien, Jennifer L. Specker
1995, Transactions of the American Fisheries Society (124) 207-215
This study was undertaken to estimate the percentage of mature female striped bass Morone saxatilis present in each age-class during annual coastal feeding migration. Migratory striped bass (N = 302) were sampled in coastal Rhode Island waters during spring (May-June) and fall (September-November) from 1985 to 1987. Stocks...
Prevailing anomaly patterns of the global sea surface temperature and tropospheric responses
E.C. Kung, J.G. Chern
1995, Atmósfera (8) 99-114
Abstract has not been submitted...
The minimal response to contact metamorphism by the Devonian Buchan Caves Limestone, Buchan Rift, Victoria, Australia
C.E. Barker, Y. Bone
1995, Organic Geochemistry (22) 151-164
A 2.2 m thick, Late Eocene (?) dike that intruded the Devonian Buchan Caves Limestone, near Murrindal, Victoria, has produced a narrow contact aureole only centimeters wide in the adjacent host rock. Mean solid bitumen reflectance ranges from about 2.4 to 2.7% and shows little change up to 6 m...
Transport behavior of groundwater protozoa and protozoan-sized microspheres in sandy aquifer sediments
R.W. Harvey, N.E. Kinner, A. Bunn, Duncan MacDonald, D. Metge
1995, Applied and Environmental Microbiology (61) 209-217
Transport behaviors of unidentified flagellated protozoa (flagellates) and flagellate-sized carboxylated microspheres in sandy, organically contaminated aquifer sediments were investigated in a small-scale (1 to 4-m travel distance) natural-gradient tracer test on Cape Cod and in flow-through columns packed with sieved (0.5-to 1.0-mm grain size) aquifer sediments. The minute (average...
Mobilization of major and trace constituents of highway runoff in groundwater potentially caused by deicing chemical migration
Gregory E. Granato, Peter E. Church, Victoria J. Stone
1995, Transportation Research Record 92-104
The quality of water in unsaturated zones and groundwater is affected by the major ions in deicing chemicals applied to roads and highways. The assessment of the environmental effects of highway runoff requires investigations to determine whether other major and trace constituents are mobilized during deicing chemical migration through the...
Inclusions in Mount St. Helens dacite erupted from 1980 through 1983
C. Heliker
1995, Journal of Volcanology and Geothermal Research (66) 115-135
Inclusions of plutonic, metavolcanic and volcanic rocks are abundant in dacite pumice and lava from the 1980–1986 eruption sequence at Mount St. Helens. Point counts of inclusions exposed in talus blocks from the dome from 1980 through 1983 show that inclusions form approximately 3.5 vol% of the lava. Eighty-five...
A comparison of two nitrification inhibitors used to measure nitrification rates in estuarine sediments
J.M. Caffrey, L.G. Miller
1995, FEMS Microbiology Ecology (17) 213-219
Nitrification rates were measured using intact sediment cores from South San Francisco Bay and two different nitrification inhibitors: acetylene and methyl fluoride. Sediment oxygen consumption and ammonium and nitrate fluxes were also measured in these cores. Four experiments were conducted in the spring, and one in the fall of 1993....
Diel feeding ecology of three species of aquatic insects
J. H. Johnson
1995, Journal of Freshwater Ecology (10) 183-188
Aspects of the diel feeding ecology of the odonate nymphs Anax Junius and Ischnura verticalis and the ephemeropteran Callibaetis fluctuans were examined over a 24-h period in a small pond. Detrital material was the primary food of both A. Junius and I. verticalis. Aquatic insects (mainly C. fluctuans) were the second ranking prey in the diel diet of A. Junius, whereas ostracods...
Constraints on formation processes of two coarse-grained calcium- aluminum-rich inclusions: A study of mantles, islands and cores
G.P. Meeker
1995, Meteoritics (30) 71-84
Many coarse-grained calcium- aluminum-rich inclusions (CAIs) contain features that are inconsistent with equilibrium liquid crystallization models of origin. Spinel-free islands (SFIs) in spinel-rich cores of Type B CAIs are examples of such features. One model previously proposed for the origin of Allende 5241, a Type B1 CAI containing SFIs, involves...
Free-surface stability criterion as affected by velocity distribution
Chen Cheng-Lung
1995, Journal of Hydraulic Engineering (121) 736-743
This paper examines how the velocity distribution of flow in open channels affects the kinematic and dynamic wave velocities, from which the various forms of the Vedernikov number V can be formulated. When V >1, disturbances created in open-channel flow will amplify in the form of roll waves; when V...
Chemically diverse, sporadic volcanism at seamounts offshore southern and Baja California
A. S. Davis, S.H. Gunn, W.A. Bohrson, L.-B. Gray, J.R. Hein
1995, Geological Society of America Bulletin (107) 554-570
Compositions of lavas from seven small to medium-sized seamounts, between lat 34.0°N and 30.5°N offshore southern and Baja California, include low-K2O tholeiitic, transitional, and mildly to moderately alkalic basalt and their differentiates. The low-K2O tholeiites resemble primitive (>9% MgO) mid-oceanic-ridge basalt (MORB) with low incompatible element abundances and very depleted,...
Laboratory study of SO2 dry deposition on limestone and marble: Effects of humidity and surface variables
E.C. Spiker, R.P. Hosker Jr., V.C. Weintraub, S.I. Sherwood
1995, Conference Paper, Water, Air, and Soil Pollution
The dry deposition of gaseous air pollutants on stone and other materials is influenced by atmospheric processes and the chemical characteristics of the deposited gas species and of the specific receptor material. Previous studies have shown that relative humidity, surface moisture, and acid buffering capability of the receptor surface are...
Optimization of a liquid chromatographic method for determination of malachite green and its metabolites in fish tissues
S. M. Plakas, K.R. ELSaid, G. R. Stehly, J.E. Roybal
1995, Journal of AOAC International (78) 1388-1394
A liquid chromatographic (LC) method was adapted and optimized for the determination of malachite green and its metabolites in fish plasma and muscle. Residues in plasma were extracted with acetonitrile, the extract was evaporated to dryness, and residues were resolubilized for LC analysis. Residues in muscle were extracted with...
Double-crested cormorants along the Upper Mississippi River
E.M. Kirsch
1995, Colonial Waterbirds (18) 131-136
The Upper Mississippi River is an important habitat corridor for migratory birds and other wildlife, and it supports an important commercial and sport fishery. A study was initiated by the U.S. Fish and Wildlife Service in 1991 to describe Double-crested cormorant (Phalacrocorax auritus) distribution and abundance on the Upper Mississippi...
Cadmium and mercury in sediment and burrowing mayfly nymphs (Hexagenia) in the upper Mississippi River, USA
S.L. Beauvais, J.G. Wiener, G.J. Atchison
1995, Archives of Environmental Contamination and Toxicology (28) 178-183
Longitudinal patterns in the cadmium and mercury content of burrowing mayflies (Hexagenia) and surrounding sediments were examined along a 572-km reach of the upper Mississippi River. Surficial sediments and Hexagenia nymphs were sampled in 1989 at 12 sites extending from Pool 2 through Pool 16 and analyzed for total recoverable cadmium and...
Circulating growth hormone, cortisol and thyroxine levels after 24 h seawater challenge of yearling coho salmon at different developmental stages
G. Young, Stephen D. McCormick, Bjorn Thrandur Bjornsson, H. A. Bern
1995, Aquaculture (136) 371-384
The response of the endocrine system to short-term exposure to sea water (SW) was examined before, during and after the parr-smolt transformation of coho salmon. Five transfers of yearling coho salmon (Oncorhynchus kisutch) from fresh water (FW) to FW, or from FW to SW for 24 h were carried out...
Pink topaz from the Thomas Range, Juab County, Utah
E.E. Foord, W. Chirnside, F.E. Lichte, Paul H. Briggs
1995, Mineralogical Record (26) 57-60
The Thomas Range is world-famous for its production of topaz Al2SiO4(F,OH)2, occurring in lithophysal cavities in rhyolite. Topaz Valley, at the southern end of the range, is perhaps the single most famous locality. While fine-quality, sherry-orange crystals to 5 cm or more in length occur at various localities, pale to...
Effects of prey density and short term food deprivation on the growth and survival of American shad larvae
J. H. Johnson, D. S. Dropkin
1995, Journal of Fish Biology (46) 872-879
Growth and survival of 16-and 18-day-old American larvae (Alosa sapidissima) increased with prey density (0, 500, and 1000 Artemia l−1), though differences were not always significant. Significant differences were not observed in growth parameters and survival for larvae fed 500 v. 1000 Artemia 1−1 in laboratory experiments. Food deprivation for as little as 2 days had...
Can magma-injection and groundwater forces cause massive landslides on Hawaiian volcanoes?
R.M. Iverson
1995, Journal of Volcanology and Geothermal Research (66) 295-308
Landslides with volumes exceeding 1000 km3 have occurred on the flanks of Hawaiian volcanoes. Because the flanks typically slope seaward no more than 12 °, the mechanics of slope failure are problematic. Limit-equilibrium analyses of wedge-shaped slices of the volcano flanks show that magma injection at prospective headscarps might trigger the...
Use of the euryhaline bivalve Potamocorbula amurensis as a biosentinel species to assess trace metal contamination in San Francisco Bay
C. L. Brown, S. N. Luoma
1995, Marine Ecology Progress Series (124) 129-142
Potamocorbula amurensis was assessed as a biosentinel species in San Francisco Bay, California, USA. Uptake of metal in both the laboratory and field showed that P. amurensis was sufficiently responsive to Ag, Cd, Cr, Ni and V to detect environmental differences in exposure. It was less suitable as an indicator of Cu...
Increased daylength stimulates plasma growth hormone and gill Na+, K+ and -ATPase Atlantic salmon (Salmo salar )
S. D. McCormick, Bjorn Thrandur Bjornsson, M. Sheridan, C. Eilertson, J. B. Carey, M. O'Dea
1995, Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology (165) 245-254
Atlantic salmon juveniles reared at constant temperature (9–10°C) were exposed to four photoperiod treatment and sampled every 2 weeks from January through May. Fish reared under normal photoperiod exhibited eight-and three fold increases in plasma growth hormone and gill Na+, K+-ATPase activity, respectively, between January and April. Fish exposed to...
Efficiency of adaptive cluster sampling for estimating density of wintering waterfowl
D. R. Smith, M.J. Conroy, D.H. Brakhage
1995, Biometrics (51) 777-788
No abstract available....
Giant blocks in the South Kona landslide, Hawaii
J.G. Moore, W.B. Bryan, M.H. Beeson, W. R. Normark
1995, Geology (23) 125-128
A large field of blocky sea-floor hills, up to 10 km long and 500 m high, are gigantic slide blocks derived from the west flank of Mauna Loa volcano on the island of Hawaii. These megablocks are embedded in the toe of the...
