Petrology of ultramafic xenoliths from Loihi Seamount, Hawaii
D.A. Clague
1988, Journal of Petrology (29) 1161-1186
Ultramafic xenoliths were recovered in four alkalic lava flows from Loihi Seamount at depths between 2200 and 1400m. No xenolith bearing flows were sampled near the summit despite a concentrated dredge program. The flows, three of alkalic basalt and one of basanite, contain common olivine megacrysts and small xenoliths...
Areal variation in recharge to and discharge from the Floridan aquifer system in Florida
Walter R. Aucott
1988, Water-Resources Investigations Report 88-4057
This report is a revision and update of existing recharge maps of the Floridan aquifer system to include quantitative information derived from Regional Aquifer Systems Analysis models as well as other recent information and also includes information on discharge from the system. The report represents predevelopment conditions with inset map...
Foraging by northern fulmars (Fulmarus glacialis) at a nearshore, anticyclonic tidal eddy in the northern Bering Sea, Alaska
J. Christopher Haney
1988, Colonial Waterbirds (11) 318-321
Northern Fulmars (Fulmar glacialis) fed on ice-associated macrofauna (probably gammarid amphipods) and pinniped offal concentrated by convergent flow at an eddy boundary near Northwest Cape on St. Lawrence Island, Alaska. The eddy was anticyclonic, measured approximately 1.5 by 2.25 km, and was generated by nearshore streaming induced by the cape’s...
Review of the distribution and feeding ecology of seabirds in the oceanic subarctic north Pacific Ocean
Gerald A. Sanger, David G. Ainley
1988, Bulletin of the Ocean Research Institute, University of Tokyo (26) 161-186
No abstract available....
Sea otters, sea urchins, and kelp beds: some questions of scale
J. A. Estes, C. Harrold
G.R. VanBlaricom, J. A. Estes, editor(s)
1988, Book chapter, Ecological Studies 65: The community ecology of sea otters
Colony attendance and population monitoring of Black-legged Kittiwakes on the Semidi Islands, Alaska
Scott A. Hatch, Martha A. Hatch
1988, The Condor (90) 613-620
Patterns of colony attendance in Black-legged Kittiwakes (Rissa tridactyla) were studied over 5 years on the Semidi Islands, western Gulf of Alaska. A census period of 50 days, extending from first egg laying through final hatching, was appropriate because counts made then were subject to the least amount of daily...
Littoral foraging by red phalaropes during spring in the northern Bering Sea
J. Christopher Haney, Amy E. Stone
1988, The Condor (90) 723-726
Phalaropes demonstrate considerable plasticity in their choice of foraging habitats. The Red Phalarope (Phalaropus fulicaria) alternates use of pelagic environments in winter and migration (Taning 1933, Stanford 1953, Briggs et al 1984) with wet tundra habitats during the breeding season (Kistchinski 1975, Mayfield 1979, Ridley 1980). Foods available and taken...
Liquid-chromatographic determination of rotenone in fish, crayfish, mussels, and sediments
V. K. Dawson, J. L. Allen
1988, Journal of the Association of Official Analytical Chemists (71) 1094-1096
An analytical procedure is described for determining residues of rotenone in fish muscle, fish offal, crayfish, freshwater mussels, and bottom sediments. Tissue samples were extracted with ethyl ether and extracts were cleaned up by gel permeation chromatography and silica gel chromatography. Sediment samples were extracted with methanol, acidified, partitioned into...
Serologic response of Rio Grande wild turkeys to experimental infections of Mycoplasma gallisepticum
Tonie E. Rocke, Thomas M. Yuill
1988, Journal of Wildlife Diseases (24) 668-671
The serologic response of Rio Grande wild turkeys (Meleagris gallopavo intermedia) to Mycoplasma gallisepticum (MG) was determined. Free-ranging turkeys were caught in southern Texas, shipped to the University of Wisconsin, Madison, and housed in isolation facilities. Fourteen birds were exposed to MG, by intratracheal and intranasal inoculation. Eight birds received...
Air encapsulation during infiltration
Jim Constantz, W.N. Herkelrath, F. Murphy
1988, Soil Science Society of America Journal (52) 10-16
A series of field and laboratory experiments were performed to measure the effects of air encapsulation within the soil's transmission zone upon several infiltration properties. In the field, infiltration rates were measured using a double-cap infiltrometer (DCI), and soil-water contents were measured using time-domain reflectometry (TDR). Before half of the...
Goose counts from aerial photographs using an optical digitizer
D.S. Gilmer, J.A. Brass, L.L. Strong, D.H. Card
1988, Wildlife Society Bulletin (16) 204-206
Abstract has not been submitted...
Geometry of Upper Cretaceous bentonite beds: Implications about volcanic source areas and paleowind patterns, western interior, United States
W.P. Elder
1988, Geology (16) 835-838
Four bentonite beds near the Cenomanian-Turonian Stage boundary (ca. 90 Ma) can be traced through much of the western interior of the United States. Isopach maps constructed for these bentonite beds indicate that volcanic source areas were positioned both northwest and southwest of...
Lack of dietary effects on the timing of smoltification in Atlantic salmon
Lori A. Redell, D. V. Rottiers, C. A. Lemm
1988, Progressive Fish-Culturist (50) 7-11
Six commercially available diets varying in lipid, protein, water, ash, and carbohydrate contents were fed to Atlantic salmon (Salmo salar) for 2 years to determine if diet affected smoltification. Each month, from March to September of the second year, sampled fish were exposed to 33‰ seawater for 24 h to...
Atmospheric deposition effects on the chemistry of a stream in Northeastern Georgia
G. R. Buell, N.E. Peters
1988, Water, Air, & Soil Pollution (39) 275-291
The quantity and quality of precipitation and streamwater were measured from August 1985 through September 1986 in the Brier Creek watershed, a 440-ha drainage in the Southern Blue Ridge Province of northeastern Georgia, to determine stream sensitivity to acidic deposition. Precipitation samples collected at 2 sites had a volume-weighted average...
Assimilation of granite by basaltic magma at Burnt Lava flow, Medicine Lake volcano, northern California: Decoupling of heat and mass transfer
T.L. Grove, R.J. Kinzler, M. B. Baker, J.M. Donnelly-Nolan, C.E. Lesher
1988, Contributions to Mineralogy and Petrology (99) 320-343
At Medicine Lake volcano, California, andesite of the Holocene Burnt Lava flow has been produced by fractional crystallization of parental high alumina basalt (HAB) accompanied by assimilation of granitic crustal material. Burnt Lava contains inclusions of quenched HAB liquid, a potential parent magma of the andesite, highly melted granitic crustal...
The seismic radiation from composite models of faulting
J. Boatwright
1988, Bulletin of the Seismological Society of America (78) 489-508
The failure of an asperity, i.e., the dynamic rupture of a small fault area with finite stress drop surrounded by a broken or weak fault area which has no stress drop but which slips after the asperity fails, is proposed as a model for the rupture process of a subevent...
A tentative protocol for measurement of radon availability from the ground
A.B. Tanner
1988, Northeastern Environmental Science (7) 58-62
A procedure is being tested in order to determine its suitability for assessing the intrinsic ability of the ground at a particular site to supply radon (222Rn) to a basement structure to be built on the site. The mean migration distance, multiplied by the measured radon concentration gives the "Radon...
Statistical Methods and Sampling Design for Estimating Step Trends in Surface-Water Quality
Robert M. Hirsch
1988, Water Resources Bulletin (24) 493-503
This paper addresses two components of the problem of estimating the magnitude of step trends in surface water quality. The first is finding a robust estimator appropriate to the data characteristics expected in water-quality time series. The J. L. Hodges-E. L. Lehmann class of estimators is found to be robust...
A reevaluation of the timing and causes of high lake phases in the Lake Michigan basin
A.K. Hansel, D.M. Mickelson
1988, Quaternary Research (29) 113-128
Radiocarbon age control on the type Glenwood, Calumet, and Toleston shoreline features and on the abandoned Chicago outlet at the south end of the Lake Michigan basin provides a basis for reevaluating the timing and causes of high lake phases in the basin. Radiocarbon dates suggest that Glenwood-level (195 m)...
Microbial methane in the shallow Paleozoic sediments and glacial deposits of Illinois, U.S.A.
D.D. Coleman, Chao-Li Liu, K.M. Riley
1988, Chemical Geology (71) 23-40
Methane formed by the microbial decomposition of buried organic matter is virtually ubiquitous in the groundwaters of Illinois. Chemical and carbon isotopic compositions are reported for gas samples collected from over 200 private and municipal water wells and from 39 small gas wells completed in glacial deposits (drift-gas wells). Carbon...
Fixed-wing airplane versus helicopter surveys of manatees (Trichechus manatus)
Galen B. Rathbun
1988, Marine Mammal Science (4) 71-75
The abundance of manatees, as with most marine mammals, is difficult to determine because they are visible for only short periods of time while at the surface of the water (Eberhardt et al. 1979, Powell et al. 1981). Aerial surveys are generally considered to be the most accurate method of...
Daily variation in feed consumption by channel catfish
Dewey L. Tackett, Ray R. Carter, K.O. Allen
1988, Progressive Fish-Culturist (50) 107-110
Daily feed consumption by 0.09‐lb channel catfish (Ictalurus punctatus) stocked at 50 and 75 lb offish per 0.25‐acre pond, and by 0.57‐lb channel catfish stocked at 100 and 200 lb offish per 0.25‐acre pond, was measured for 157 d. Demand feeders were used to determine feed consumption. Feed consumption routinely...
Predation, herbivory and kelp evolution
J. A. Estes, P.D. Steinberg
1988, Paleobiology (14) 19-36
We propose that the kelps (Laminariales) radiated in the North Pacific following the onset of late Cenozoic polar cooling. The evidence is that (1) extant kelps occur exclusively in cold-water habitats; (2) all but one of 27 kelp genera occur in the North Pacific, 19 of these exclusively; and (3)...
Thermal modelling of stepwise anatexis in a thrust-thickened sialic crust
E-An Zen
1988, Transactions of the Royal Society of Edinburgh, Earth Sciences (79) 223-235
One-dimensional modelling of the thermal history of a sialic crust thickened by multiple overstack thrusting of upper crustal material shows that anatexis is likely. both the uplift rate and the length of the incubation period between end of tectonism and start of uplift are important controls on the amount and...
Statistical methods for investigating quiescence and other temporal seismicity patterns
M.V. Matthews, P.A. Reasenberg
1988, Pure and Applied Geophysics PAGEOPH (126) 357-372
We propose a statistical model and a technique for objective recognition of one of the most commonly cited seismicity patterns:microearthquake quiescence. We use a Poisson process model for seismicity and define a process with quiescence as one with a particular type of piece-wise constant intensity function. From this model, we...
