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Page 2725, results 68101 - 68125

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Tag Retention and Survivorship of Hatchery Rainbow Trout Marked with Large-Format Visible Implant Alphanumeric Tags
J. Jeffery Isely, D.G. Trested, T.B. Grabowski
2004, North American Journal of Aquaculture (66) 73-74
Large-format visible implant alphanumeric (VIalpha) tags were implanted into 15,400 rainbow trout Oncorhynchus mykiss. Tag retention after 25 d was 82.6%, and survivorship was 92.8%. The results of this study compare favorably with those of similar studies on other species and suggest that large-format VIalpha tags are an appropriate choice...
Quantitative expression profiling of immune response genes in rainbow trout following infectious haematopoietic necrosis virus (IHNV) infection or DNA vaccination
Maureen K. Purcell, Gael Kurath, Kyle A. Garver, Russell P. Herwig, James R. Winton
2004, Fish & Shellfish Immunology (17) 447-462
Infectious haematopoietic necrosis virus (IHNV) is a well-studied virus of salmonid fishes. A highly efficacious DNA vaccine has been developed against this virus and studies have demonstrated that this vaccine induces both an early and transient non-specific anti-viral phase as well as long-term specific protection. The mechanisms of the early...
Major histocompatibility complex loci are associated with susceptibility of Atlantic salmon to infectious hematopoietic necrosis virus
Kristina M. Miller, James R. Winton, Angela D. Schulze, Maureen K. Purcell, Tobi J. Ming
2004, Environmental Biology of Fishes (69) 307-316
Infectious hematopoietic necrosis virus (IHNV) is one of the most significant viral pathogens of salmonids and is a leading cause of death among cultured juvenile fish. Although several vaccine strategies have been developed, some of which are highly protective, the delivery systems are still too costly for general use by...
Ecological and political issues surrounding decommissioning of offshore oil facilities in the Southern California Bight
Donna M. Schroeder, Milton S. Love
2004, Ocean and Coastal Management (17) 21-48
To aid legislators, resource managers, and the general public, this paper summarizes and clarifies some of the issues and options that the federal government and the state of California face in decommissioning offshore oil and gas production platforms, particularly as these relate to platform ecology. Both local marine ecology and...
Streaks, multiplets, and holes: High-resolution spatio-temporal behavior of Parkfield seismicity
F. Waldhauser, W.L. Ellsworth, D. P. Schaff, A. Cole
2004, Geophysical Research Letters (31)
Double-difference locations of ???8000 earthquakes from 1969-2002 on the Parkfield section of the San Andreas Fault reveal detailed fault structures and seismicity that is, although complex, highly organized in both space and time. Distinctive features of the seismicity include: 1) multiple recurrence of earthquakes of the same size at precisely...
Potential involvement of rainbow trout thrombocytes in immune functions: a study using a panel of monoclonal antibodies and RT-PCR
B. Kollner, U. Fisher, J.H.W.M. Rombout, J.J. Taverne-Thiele, J.D. Hansen
2004, Developmental and Comparative Immunology (28) 1049-1062
The functional relationship between fish and mammalian thrombocytes is relatively unknown. In this study, a panel of monoclonal antibodies (mAbs) was used to investigate the functional properties of rainbow trout thrombocytes. The mAbs recognize cell-surface molecules on thrombocytes with molecular weights ranging from 17 to 160 kDa. Flow cytometric and...
Developmental instability in Rhus copallinum L.: multiple stressors, years, and responses
D. Carl Freeman, Michelle L. Brown, Jeffrey J. Duda, John H. Graham, John M. Emlen, Anthony J. Krzysik, Harold E. Balbach, Dave A. Kovacic, John C. Zak
2004, International Journal of Plant Sciences (165) 53-63
Developmental instability, as assessed by leaf fluctuating asymmetry and stem internode allometry, was examined at nine sites, representing three levels of disturbance, over multiple years. Site selection was based on land‐use disturbance classes related to training of mechanized infantry and other land management activities at Fort Benning, Georgia. Developmental instability...
Sheathfolds in rheomorphic ignimbrites
M.J. Branney, T.L. Barry, Martha Godchaux
2004, Bulletin of Volcanology (66) 485-491
Structural reappraisal of several classic rheomorphic ignimbrites in Colorado, Idaho, the Canary Islands and Italy has, for the first time, revealed abundant oblique folds, curvilinear folds and sheathfolds which formed during emplacement. Like their equivalents in tectonic shear-zones, the sheathfold axes lie sub-parallel to a pervasive elongation lineation, and appear...
Constraints of body size and swimming velocity on the ability of juvenile rainbow trout to endure periods without food
D.G. Simpkins, W.A. Hubert, C. Martinez Del Rio, D.C. Rule
2004, Journal of Fish Biology (65) 530-544
The hypothesis that body size and swimming velocity affect proximate body composition, wet mass and size-selective mortality of fasted fish was evaluated using small (107 mm mean total length, LT) and medium (168 mm mean LT) juvenile rainbow trout Oncorhynchus mykiss that were sedentary or swimming (c. 1 or 2...
Chemical and carbon isotopic composition of dissolved organic carbon in a regional confined methanogenic aquifer
R. Aravena, L.I. Wassenaar, E.C. Spiker
2004, Isotopes in Environmental and Health Studies (40) 103-114
This study demonstrates the advantage of a combined use of chemical and isotopic tools to understand the dissolved organic carbon (DOC) cycle in a regional confined methanogenic aquifer. DOC concentration and carbon isotopic data demonstrate that the soil zone is a primary carbon source of groundwater DOC in areas close...
Seismic velocity models for the Denali fault zone along the Richardson Highway, Alaska
T.M. Brocher, G. S. Fuis, W. J. Lutter, N.I. Christensen, N. A. Ratchkovski
2004, Bulletin of the Seismological Society of America (94) S85-S106
Crustal-scale seismic-velocity models across the Denali fault zone along the Richardson Highway show a 50-km-thick crust, a near vertical fault trace, and a 5-km-wide damage zone associated with the fault near Trans-Alaska Pipeline Pump Station 10, which provided the closest strong ground motion recordings of the 2002 Denali fault earthquake....
Dramatic increase in the relative abundance of large male dungeness crabs Cancer magister following closure of commercial fishing in Glacier Bay, Alaska
S. James Taggart, Thomas C. Shirley, Charles E. O’Clair, Jennifer Mondragon
2004, American Fisheries Society Symposium (2004) 243-253
The size structure of the population of the Dungeness crab Cancer magister was studied at six sites in or near Glacier Bay, Alaska, before and after the closure of commercial fishing. Seven years of preclosure and 4 years of postclosure data are presented. After the closure of Glacier Bay to...
Comparison of electrofishing and trammel netting variability for sampling native fishes
C.P. Paukert
2004, Journal of Fish Biology (65) 1643-1652
The variability in size structure and relative abundance (CPUE; number of fish ≥200 mm total length, LT, collected per hour of electrofishing or trammel netting) of three native Colorado River fishes, the endangered humpback chub Gila cypha, flannelmouth sucker Catostomus latipinnus and bluehead sucker Catostomus discobolus, collected from electrofishing and trammel nets was assessed...
Selenium in water, sediment, plants, invertebrates, and fish in the Blackfoot River drainage
S. J. Hamilton, K.J. Buhl
2004, Water, Air, & Soil Pollution (159) 3-34
Nine stream sites in the Blackfoot River watershed in southeastern Idaho were sampled in September 2000 for water, surficial sediment, aquatic plants, aquatic invertebrates, and fish. Selenium was measured in these aquatic ecosystem components, and a hazard assessment was performed on the data. Water quality characteristics such as pH, hardness,...
Subarctic, alpine nesting by Bairds Sandpipers Calidris bairdii
Robert E. Gill Jr., Pavel S. Tomkovich
2004, Wader Study Group Bulletin (104) 39-50
Baird's Sandpipers Calidris bairdii were found nesting in alpine habitat in southwestern Alaska (60°48'N, 154°00'W), almost 250 km from the nearest known breeding site, and studied over three consecutive seasons, 1997-1999. The first birds arrived during the second week of May each spring with peak numbers recorded the third week...
The new GFDL global atmosphere and land model AM2-LM2: Evaluation with prescribed SST simulations
J. L. Anderson, V. Balaji, A.J. Broccoli, W.F. Cooke, T.L. Delworth, K.W. Dixon, L.J. Donner, K.A. Dunne, S.M. Freidenreich, S.T. Garner, R.G. Gudgel, C.T. Gordon, I.M. Held, R.S. Hemler, L.W. Horowitz, S.A. Klein, T.R. Knutson, P.J. Kushner, A.R. Langenhost, N.-C. Lau, Z. Liang, S.L. Malyshev, P. C. D. Milly, M.J. Nath, J.J. Ploshay, V. Ramaswamy, M.D. Schwarzkopf, E. Shevliakova, J.J. Sirutis, B.J. Soden, W.F. Stern, L.A. Thompson, R.J. Wilson, A.T. Wittenberg, B.L. Wyman
2004, Journal of Climate (17) 4641-4673
The configuration and performance of a new global atmosphere and land model for climate research developed at the Geophysical Fluid Dynamics Laboratory (GFDL) are presented. The atmosphere model, known as AM2, includes a new gridpoint dynamical core, a prognostic cloud scheme, and a multispecies aerosol climatology, as well as components...
Factors affecting swimming performance of fasted rainbow trout with implications of exhaustive exercise on overwinter mortality
D.G. Simpkins, W.A. Hubert, Del Rio, D.C. Rule
2004, Journal of Freshwater Ecology (19) 657-666
We evaluated the effects of body size, water temperature, and sustained swimming activity on swimming performance and the effects of exhaustive exercise on mortality of fasted juvenile rainbow trout. Fasting caused swimming performance to decline more rapidly for small fish than large fish, and warmer water temperatures and sustained swimming...
Methods for determining manning's coefficients for Illinois streams
D.T. Soong, T.M. Halfar, M.A. Jupin, L.A. Wobig
Sehlke G.Hayes D.F.Stevens D.K., editor(s)
2004, Conference Paper, Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management
Determination of Manning's coefficient, n, for natural streams remains a challenge in practices. One source for determining the n-values that has received practitioners' attention is presenting the n-values determined from field data (measured discharge and water-surface slope) in combination of photographs and site descriptions (ancillary information). Further improvements in the...
Winter growth and survival of juvenile Atlantic salmon (Salmo salar) in experimental raceways
D.L. Parrish, E.J. Hawes, K.G. Whalen
2004, Conference Paper, Canadian Journal of Fisheries and Aquatic Sciences
We used experimental raceways to determine overwinter mortality of wild-reared immature and mature post-young-of-the-year Atlantic salmon (Salmo salar). Secondarily, we investigated the effects of differing treatments (velocity and shelter) on winter growth and survival. Overall survival from November to April was 94%, and survival of immature (98%) and mature (90%)...
Groundwater mining of bedrock aquifers in the Denver Basin - Past, present, and future
J.E. Moore, R.G. Raynolds, P.E. Barkmann
2004, Environmental Geology (47) 63-68
The Denver Basin bedrock aquifer system is an important source of water for municipal and agricultural uses in the Denver and Colorado Springs metropolitan areas. The Denver area is one of the fastest growing areas in the United States with a population of 1.2 million in 1960 that has increased...
Modeling a three-dimensional river plume over continental shelf using a 3D unstructured grid model
R. T. Cheng, V. Casulli
Spaulding M.L., editor(s)
2004, Conference Paper, Proceedings of the International Conference on Estuarine and Coastal Modeling
River derived fresh water discharging into an adjacent continental shelf forms a trapped river plume that propagates in a narrow region along the coast. These river plumes are real and they have been observed in the field. Many previous investigations have reported some aspects of the river plume properties, which...
Measuring mercury and other elemental components in tree rings
C. Gillan, W.A. Hollerman, T.W. Doyle, T.E. Lewis
2004, Conference Paper, Technical Papers of ISA
There has been considerable interest in measuring heavy metal pollution, such as mercury, using tree ring analysis. Since 1970, this method has provided a historical snapshot of pollutant concentrations near hazardous waste sites. Traditional methods of analysis have long been used with heavy metal pollutants such as mercury. These methods,...
Mixing physical habitat and streamflow time series analysis
R.T. Milhous
2004, Hydroécologie Appliquée (14) 69-91
Four observations from two case studies are presented: physical habitat analysis of the Virgin River in southwestern Utah and upper Animas Basin in southwestern Colorado. The Virgin River is usually considered a sand bed river. Cross-sectional measurements, made at three streamflows, show there was considerable change in the channel between...