Conference Papers
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Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
Filter Total Items: 5519
Delineation of sandhill crane subspecies Delineation of sandhill crane subspecies
No abstract available.
Authors
Douglas H. Johnson, J. E. Austin
Detection of gas hydrate with downhole logs and assessment of gas hydrate concentrations (saturations) and gas volumes on the Blake Ridge with electrical resistivity log data Detection of gas hydrate with downhole logs and assessment of gas hydrate concentrations (saturations) and gas volumes on the Blake Ridge with electrical resistivity log data
Let 164 of the Ocean Drilling Program was designed to investigate the occurrence of gas hydrate in the sedimentary section beneath the Blake Ridge on the southeastern continental margin of North America. Site 994, and 997 were drilled on the Blake Ridge to refine our understanding of the in situ characteristics of natural gas hydrate. Because gas hydrate is unstable at surface pressure...
Authors
T. S. Collett, J. Ladd
Dietary alewife and bloater chub effect on lake trout egg thiamine; Report on early mortality syndrome workshop Dietary alewife and bloater chub effect on lake trout egg thiamine; Report on early mortality syndrome workshop
No abstract available at this time
Authors
D. C. Honeyfield, J. P. Hinterkopf, J. Fitzsimons, S.B. Brown, D. E. Tillitt
Effectiveness of windrow composting to control bacterial pathogens; Effectiveness of windrow composting to control bacterial pathogens;
No abstract available at this time
Authors
C. E. Starliper
Effects of methyl testosterone exposure on sexual differentiation in medaka, Oryzias latipes Effects of methyl testosterone exposure on sexual differentiation in medaka, Oryzias latipes
Studies were conducted to characterize effects of a known androgen on sexual differentiation and development of medaka, Oryzias latipes (d-rR strain), at two life stages. Embryos were injected with graded doses of methyl testosterone (MT) prior to epiboly. The occurrence of sex-reversal, and the gonadosomatic index (GSI) were evaluated in adults. Primary germ cells were counted and gonad...
Authors
D. M. Papoulias, Douglas B. Noltie, D. E. Tillitt
Effects of the mosquito larvicide GB-1111 on mallard and bobwhite embryos Effects of the mosquito larvicide GB-1111 on mallard and bobwhite embryos
No abstract available at this time
Authors
D. J. Hoffman, P.H. Albers, M. J. Melancon, A.K. Miles
Energy budgets of mining-induced earthquakes and their interactions with nearby stopes Energy budgets of mining-induced earthquakes and their interactions with nearby stopes
In the early 1960's, N.G.W. Cook, using an underground network of geophones, demonstrated that most Witwatersrand tremors are closely associated with deep level gold mining operations. He also showed that the energy released by the closure of the tabular stopes at depths of the order of 2 km was more than sufficient to account for the mining-induced earthquakes. I report here updated...
Authors
Art McGarr
Environmental history and tephrostratigraphy at Carp Lake, southwestern Columbia Basin, Washington, USA Environmental history and tephrostratigraphy at Carp Lake, southwestern Columbia Basin, Washington, USA
Sediment cores from Carp Lake provide a pollen record of the last ca. 125,000 years that helps disclose vegetational and climatic conditions from the present day to the previous interglaciation (120-133 ka). The core also contained 15 tephra layers, which were characterised by electron-microprobe analysis of volcanic glass shards. Identified tephra include Mount St. Helens Ye, 3.69 ka...
Authors
C. Whitlock, A.M. Sarna-Wojcicki, P. J. Bartlein, R.J. Nickmann
Estimation of potential loss of two pesticides in runoff in Fillmore County, Minnesota using a field-scale process-based model and a geographic information system Estimation of potential loss of two pesticides in runoff in Fillmore County, Minnesota using a field-scale process-based model and a geographic information system
In assessing the occurrence, behavior, and effects of agricultural chemicals in surface water, the scales of study (i.e., watershed, county, state, and regional areas) are usually much larger than the scale of agricultural fields, where much of the understanding of processes has been developed. Field-scale areas are characterized by relatively homogeneous conditions. The combination of...
Authors
Paul D. Capel, Zhang Hua
Etiology and pathogenesis of skin ulcers in menhaden, Brevoortia tyrannis: does Pfiesteria piscicida play a role? Etiology and pathogenesis of skin ulcers in menhaden, Brevoortia tyrannis: does Pfiesteria piscicida play a role?
The toxic dinoflagellate, Pfiesteria piscicida, is widely blamed for adverse human health effects, acute fish kills and skin lesion events in fishes, particularly menhaden, Brevoortia tyrannis, inhabiting coastal waters from Delaware to North Carolina, USA. In response, we initiated studies to clarify the etiology and pathogenesis of presumed 'Pfiesteria-specific' menhaden skin lesions
Authors
V. Blazer, W. K. Vogelbein, C. Densmore, H. Kator, D. Zwerner, J. Lilley
Evolution of harvest management for North American waterfowl: Selective pressures and preadaptations for adaptive harvest management Evolution of harvest management for North American waterfowl: Selective pressures and preadaptations for adaptive harvest management
No abstract available.
Authors
James D. Nichols