A comparison of upper mantle subcontinental electrical conductivity for North America, Europe, and Asia.
W.H. Campbell, E.R. Schiffmacher
1986, Journal of Geophysics - Zeitschrift fur Geophysik (59) 56-61
Spherical harmonic analysis coefficients of the external and internal parts of the quiet-day geomagnetic field variations (Sq), separated for the N American, European, Central Asian and E Asian regions, were used to determine conductivity profiles to depths of about 600km by the Schmucker equivalent-substitute conductor method. All 3 regions showed...
Spatial diversity index mapping of classes in grid cell maps.
C.J. Robinove
1986, Photogrammetric Engineering and Remote Sensing (52) 1171-1173
The landscape diversity index indicates the number of classes of land that are in proximity to each point in a digital grid cell map. The index is D=100(i-1)/(n-1), where i = the number of landscape classes within a selected distance of each grid cell and n = the total number...
Comparison of the marine oxygen isotope record, the Eustatic sea level record, and the chronology of glaciation in the United States of America
D. S. Fullerton, G.M. Richmond
1986, Quaternary Science Reviews (5) 197-200
[No abstract available]...
The South Fork detachment fault, Park County, Wyoming: discussion and reply ( USA).
W. G. Pierce
1986, Contributions to Geology - University of Wyoming, Laramie (24) 77-90
Blackstone (1985) published an interpretation of South form detachment fault and related features. His interpretation of the area between Castle and Hardpan transverse faults is identical to mine of 1941. Subsequent detailed mapping has shown that the structure between the transverse faults is more complicated than originally envisioned and resurrected...
FEATURE OF THE 3 MARCH 1985 CHILE EARTHQUAKE - POSSIBLE TERRAIN AMPLIFICATION.
M. Çelebi
1986, Conference Paper
This paper presents results of site-response experiments performed five months after the M//s equals 7. 8 Central Chile Earthquake of 3 March 1985. The objectives of the experiments performed are to identify amplification due to topography and geology. Topographical amplification at Canal Beagle, a subdivision of Vina del Mar, was...
Past and present status of polar bears in Alaska
Steven C. Amstrup, Ian Stirling, J. Lentfer
1986, Wildlife Society Bulletin (14) 241-254
No abstract available....
Urea cycle activity and arginine formation in rainbow trout (Salmo gairdneri)
Y. N. Chiu, R. E. Austic, G. L. Rumsey
1986, Journal of Nutrition (116) 1640-1650
Studies were conducted to determine whether rainbow trout fingerlings possess the ability to synthesize arginine via the urea cycle. Several urea cycle enzymes were detected in trout tissues. An experiment was conducted to determine whether the enzymes increase in response to starvation or in response to dietary protein level (0,...
Use of erythromycin in reducing vertical transmission of bacterial kidney disease
G. L. Bullock, S.L. Leek
1986, Veterinary and Human Toxicology (28 Supp 1) 18-20
Tissue distribution and elimination of radiolabelled methyltestosterone fed to sexually undifferentiated blue tilapia
C. A. Goudie, W. L. Shelton, N. C. Parker
1986, Aquaculture (58) 215-226
Populations of monosex male Oreochromis aureus can result when the synthetic androgen 17α-methyltestosterone (MT) is fed to sexually undifferentiated fish; however, concerns exist over residues of the androgen remaining in fish destined for human consumption. Radioactivity in the carcass and viscera was evaluated in juvenile fish fed steroid-incorporated diet (tritium and carbon-14...
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...
A professional umbrella for the 80s: Report of the 1983-84 Professionalism Committee
C.F. Cole, C. Griswold, V. Henderson, E. Hester, T. Modde, R.L. Noble, G. Pardue, N. C. Parker, D.C. Peterson, W.F. Royce
1986, Fisheries (11) 22-28
No abstract available....
Review of the intensive culture of walleye fry
W. F. Krise, J. W. Meade
1986, Progressive Fish-Culturist (48) 81-89
Efficient intensive culture of larval walleyes (Stizostedion vitreum) may soon be realized due to results of research on larval development, culture environment, preferred food organisms, and feeding techniques. Larval behavior and morphology (developmental state) can be used as indicators for appropriate handling and feeding techniques. Certain environmental conditions such as...
Immunoblot assay: a rapid and sensitive method for identification of salmonid fish viruses
P. E. McAllister, W. B. Schill
1986, Journal of Wildlife Diseases (22) 468-474
An immunoblot assay was used to identify the viruses of infectious pancreatic necrosis, infectious hematopoietic necrosis, and viral hemorrhagic septicemia. Viral antigen in infected cell culture supernatant was adsorbed onto nitrocellulose membrane or Whatman 541 filter paper and detected by enzyme-linked immunosorbent assay...
Diet related anemia in channel catfish: Case history and laboratory induction
G. T. Klar, L. A. Hanson, S. W. Brown
1986, Progressive Fish-Culturist (48) 60-64
Severe anemia among fingerling to adult channel catfish (Ictalurus punctatus) and blue catfish (Ictalurus furcatus) was reported by 39 of 166 catfish farmers in west‐central Alabama in 1983. The hematocrits of moribund fish in ponds ranged from 0 to 5%. Weekly mortalities as high as 5% in individual ponds were...
Antimicrobials and fish: a review of drugs used to treat bacterial diseases of channel catfish and rainbow trout
R. L. Herman, G. L. Bullock
1986, Veterinary and Human Toxicology (28 Supp 1) 11-17
You asked for it! The fathead minnow: an overview on propagation, culturing, and uses
M. Martin
1986, Aquaculture Magazine (12) 48-51
Mycoplasma contamination in fish cell lines: An evaluation of detection by differential incorporation of 3H-uridine and 14C-uracil
C. L. Schultz, B. C. Lidgerding, P. E. McAllister, F. M. Hetrick
1986, Journal of Fish Diseases (9) 117-122
Differential incorporation of uridine and uracil was used to assay for mycoplasma contamination in five fish cell lines: bluegill fry (BF-2), chinook salmon embryo (CHSE-214), epithelioma papillosum cyprini (EPC), fathead minnow (FHM) and rainbow trout gonad (RTG-2). The method was not suitable for monitoring BF-2, CHSE-214, FHM, and RTG-2 cell...
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...
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....
Dune stabilization on San Miguel Island off the coast of southern California
W. L. Halvorson, R. E. Koske, D.P. Morris
1986, Restoration & Management Notes (4) 35-35
No abstract available....
Influence of weather and density on lamb survival of desert mountain sheep
Charles L. Douglas, David M. Leslie Jr.
1986, Journal of Wildlife Management (50) 153-156
This report concerns the effect of weather on lamb survival in desert mountain sheep (Ovis canadensis nelsoni) to 6-8 months of age in the River Mountains, Nevada, and how it integrates with density to limit the population. Regression analyses were used to examine relationships between lamb survival and weather variables...
Seed predation by yucca moths on semelparous, iteroparous and vegetatively reproducing subspecies of Yucca whipplei (Agavaceae)
Jon E. Keeley, Sterling C. Keeley, D. A. Ikeda
1986, American Midland Naturalist (115) 1-9
Yucca whipplei subspecies are distinguished by differences in reproduction: spp. whipplei and ssp. parishii are semelparous, flowering once and dying; ssp. caespitosa is iteroparous, producing multiple rosettes which may flower in different years; ssp. percursa has clonal reproduction from rhizomes, and ssp. intermedia is intermediate to the latter two. Seed...
Daily activity cycles of introduced Hawaiian birds at an urban roost
J.E. Lovich
1986, 'Elepaio (46) 131-132
No abstract available....
The use of stable isotopes in the study of photosynthesis in freshwater plants
Jon E. Keeley, Leonel Sternberg, Michael J. DeNiro
1986, Aquatic Botany (26) 213-223
The ratio of 13C/12C for photosynthetic tissues of 22 aquatic species was unrelated to photosynthetic pathway. In three aquatic environments CAM and non-CAM species were shown to have similar δ13C values. Although these CAM species derive up to half of their net carbon gain through dark fixation their δ13C values are similar to...
