Tissue distribution and elimination of radiolabelled methyltestosterone fed to adult blue tilapia
C. A. Goudie, W. L. Shelton, N. C. Parker
1986, Aquaculture (58) 227-240
Radioactivity levels in 10 tissues were monitored for 21 days after adult (1-year-old) blue tilapia, Oreochromis aureus, were fed a single meal of a diet containing 30 μg unlabelled methyltestosterone (MT) per gram of feed and radiolabelled MT (3H-labelled steroid nucleus and 14C-labelled...
Strategies for reducing risks from introductions of aquatic organisms: The federal perspective
James P. Clugston
1986, Fisheries (11) 26-29
The Lacey Act of 1900 and subsequent amendments have provided the basis for existing federal regulations on species introductions. The 1981 version repealed the Black Bass Act and corrected certain insufficiencies in the original Lacey and Black Bass Acts. A 1977 executive order instructs federal agencies, to the extent permitted...
Spring activities and habits of juvenile desert tortoises, Gopherus agassizii, in California
K.H. Berry, F.B. Turner
1986, Copeia (1986) 1010-1012
No abstract available....
An incidence of twinning in the sea otter (Enhydra lutris)
Ronald J. Jameson, James L. Bodkin
1986, Marine Mammal Science (2) 305-309
On 3 October 1984 at 0928 h (PST) near Pt. San Simeon, California (35°39’N, 121°11’W), we observed a female sea otter (Enhydra lutris) resting in a kelp bed (Macrocystis pyrifera) with a small pup on her chest; approximately 2 m away another small pup floated unattended in the kelp. The...
An annotated checklist of mammals of Point Reyes National Seashore
Gary M. Fellers, John Dell’Osso
1986, Book
No abstract available at this time...
A field guide to valuable underwater aquatic plants of the Great Lakes
Donald W. Schloesser
1986, Report
Underwater plants are a valuable part of the Great Lakes ecosystem, providing food and shelter for aquatic animals. Aquatic plants also help stabilize sediments, thereby reducing shoreline erosion. Annual fall die-offs of underwater plants provide food and shelter for overwintering small aquatic animals such as insects, snails, and freshwater shrimp. In...
Analysis of forest structure using thematic mapper simulator data
D. L. Peterson, W.E. Westman, N.L. Stephenson, V.G. Ambrosia, J.A. Brass, M.A. Spanner
1986, Book chapter, IEEE Transactions on Geoscience and Remote Sensing: GE-24
No abstract available at this time...
Evaluation of waterfowl production at Union Slough National Wildlife Refuge
J. P. Fleskes
1986, Thesis
No abstract available at this time...
Description and generalized distribution of aquifer materials in the alluvial basins of Arizona and adjacent parts of California and New Mexico
Geoffrey W. Freethey
1986, Hydrologic Atlas 663
No abstract available....
Introduction
M.M. Smart, S.J. Lubinski, R. A. Schnick
M.M. Smart, S.J. Lubinski, R. A. Schnick, editor(s)
1986, Book chapter, Ecological perspectives of the upper Mississippi River
Abstract not submitted to date...
Paleomagnetism of the Tertiary Clarno Formation of central Oregon and its significance for the tectonic history of the Pacific Northwest
C. Sherman Gromme, Myrl E. Beck Jr., Ray E. Wells, David C. Engebretson
1986, Journal of Geophysical Research B: Solid Earth (91) 14089-14103
The Clarno Formation, a mostly Eocene and partly early Oligocene sequence of andesitic lavas and volcaniclastic rocks, is the oldest Tertiary formation exposed in north central Oregon. Remanent magnetization directions at 46 sites in the lavas provide a paleomagnetic pole at 84°N, 278°E with a 95% confidence cone of 7°....
MAPGEN CARTOGRAPHIC SYSTEM.
Gerald I. Evenden
Steiger Daniel, editor(s)
1986, Conference Paper
MAPGEN is a software system that facilitates production of cartographic displays in the research and production environment. The system generates a set of metagraphic overlays of application-defined geographical information that can be aggregated in any combination for display without reprocessing the original data. An overview of the control files, available...
Land subsidence
T.L. Holzer
1986, Earthquakes & Volcanoes (USGS) (18) 131-137
In November 1966, sixty percent of Venice, Italy, is inundated by a storm surge that causes waters in the Venetian lagoon to rise more than 6 feet. On December 28, 1971, a janitor at the Washington Elementary School in Johnston City, Illinois, discovers sever cracking of the school. In January...
Living with the earthquake risk
A. M. Rogers
1986, Earthquakes & Volcanoes (USGS) (18) 113-121
The principal hazards from earthquakes are surface faulting, ground failure, and ground shaking. In coastal areas tsunamis, or seismic sea waves, also are a potential hazard. We will consider each of these hazards briefly to assess their possible effects on the structures of man. ...
Volcanoes and atmospheres; catastrophic influences on the planets
S. W. Kieffer
1986, Earthquakes & Volcanoes (USGS) (18) 76-83
For a rare and brief instant in geologic time, we can imagine that the sulfurous, chromatic surface of Io (one of the satellites of Jupiter) lies quiet. Perhaps stars glisten brilliantly through the tenuous nigh sky. Here and there, thick icy fogs enshroud fumaroles where sulfur dioxide leaks from the...
The Pacific tsunami warning system
G. Pararas-Carayannis
1986, Earthquakes & Volcanoes (USGS) (18) 122-130
Of all natural disasters, tsunamis are among the most terrifying and complex phenomena, responsible for great loss of lives and vast destruction of property. Enormous destruction of coastal communities has taken place throughout the world by such great waves since the beginning of recorded history. The impact of tsunamis on human...
Cooperative earthquake research between the United States and the People’s Republic of China
D. P. Russ, L.E. Johnson
1986, Earthquakes & Volcanoes (USGS) (18) 138-140
Cooperative research by scientists of the United States and the People's Republic of China (PRC) has resulted in important new finding concerning the fundamental characteristics of earthquakes and new insight into mitigating earthquake hazards. Much of the research is being conducted under the U.S State Department Protocol for Scientific and...
Earthquakes, March-April 1986
W. J. Person
1986, Earthquakes & Volcanoes (USGS) (18) 237-239
There was one major earthquake (7.0-7.9) in Mexico on April 30, during this reporting period. Earthquake-related deaths were reported in India and Peru. In the United States, California experienced three widely felt earthquakes. ...
Volcanic debris avalanches
S. Brantley, H. Glicken
1986, Earthquakes & Volcanoes (USGS) (5) 195-206
New theories about ancient extinctions
H. Spall
1986, Earthquakes & Volcanoes (USGS) (18) 90-92
The abrupt disappearance of all the dinosaurs about 65 million years ago, along with perhaps half the plant species and other animals, has been one of the great geological mysteries. Clues to the cause of these extinctions have been scarce and open to many interpretations. But all this may be changing....
Two dome-building episodes at Mount St. Helens in 1984 and 1985 and the accompanying seismicity.
S. Brantley
1986, Earthquakes & Volcanoes (USGS) (5) 207-217
Tree-ring dating of volcanic deposits
S. Brantley, D. Yamaguchi, K. Cameron, P. Pringle
1986, Earthquakes & Volcanoes (USGS) (5) 184-194
Meteoroids and impact craters
Henry Spall
1986, Earthquakes & Volcanoes (USGS) (18) 84-89
On a clear night scores of meteoroids streak across the sky. they leave light paths we call meteors or shooting stars as the Earth is showered with debris from distant parts of the solar system. When these meteoroids hit the Earth (as meteorites) they range in size from pebbles to...
Earthquakes, January-February 1986
W. J. Person
1986, Earthquakes & Volcanoes (USGS) (18) 235-237
The first two months of the year were somewhat quiet seismically speaking. There were no major earthquakes (7.0-7.9) but one death was caused by an earthquake in Peru. In the United States a magntidue 4.9 earthquake in Ohio on January 31 caused some minor injuries and was felt in eleven states,...
Halley’s comet; a benevolent visitor to Earth
H. Spall
1986, Earthquakes & Volcanoes (USGS) (18) 98-102
In late 1985 and early 1986 a comet was visible to the Earth that has been observed for over 2000 years. One of the most famous of celestial visitors, Comet Halley appeared last in 1910 and will not be seen again until the year 2061. the comet has been the...
