Lead burdens and behavioral impairments of the lined shore crab Pachygrapsus crassipes
Clifford A. Hui
2002, Ecotoxicology (11) 417-421
Sublethal burdens of lead impair behaviors critical to survival in a variety of animals. In a test arena, I measured refuge-seeking behaviors of adult, male, lined shore crabs from lead-free and lead-contaminated sites. The body sizes of the test groups did not differ although the mean total body lead burdens...
Routine low-level monitoring of polar pesticides and pesticide degradates by HPLC/ESI-MS: Evaluating long-term performance
E. T. Furlong, Jeffrey D. Martin, S.L. Werner, Paul M. Gates
2002, Conference Paper, Proceedings 50th ASMS Conference on Mass Spectrmetry and Allied Topics
The sensitivity and selective determination of polar pesticides were analyzed using high-performance liquid chromatography/electrospray ionization-mass spectrometry (HPLC/ESI-MS). The effects of multiple operators and instruments on method performance were evaluated using 440 pairs of fortified reagent-water and blank reagent-water samples. The influence of varying environmental matrices on recovery and precision were...
Avian furcula morphology may indicate relationships of flight requirements among birds
Clifford Hui
2002, Journal of Morphology (251) 284-293
This study examined furcula (wishbone) shape relative to flight requirements. The furculae from 53 museum specimens in eight orders were measured: 1) three-dimensional shape (SR) as indicated by the ratio of the direct distance between the synostosis interclavicularis and the ligamentous attachment of one of its clavicles to the actual...
Choosing appropriate techniques for quantifying groundwater recharge
Bridget R. Scanlon, Richard W. Healy, Peter G. Cook
2002, Hydrogeology Journal (10) 18-39
Various techniques are available to quantify recharge; however, choosing appropriate techniques is often difficult. Important considerations in choosing a technique include space/time scales, range, and reliability of recharge estimates based on different techniques; other factors may limit the application of particular techniques. The goal of the recharge study is important...
Toxicological and chemical assessment of ordnance compounds in marine sediments and porewaters
M. Nipper, R.S. Carr, J.M. Biedenbach, R.L. Hooten, K. Miller
2002, Marine Pollution Bulletin (44) 789-806
Toxicological and chemical studies were performed with a silty and a sandy marine sediment spiked with 2,6-dinitrotoluene (2,6-DNT), 2,4,6-trinitrophenylmethylnitramine (tetryl), or 2,4,6-trinitrophenol (picric acid). Whole sediment toxicity was analyzed by the 10-day survival test with the amphipod Ampelisca abdita, and porewater toxicity tests assessed macro-algae (Ulva fasciata) zoospore germination and...
Editors' message: The past year and thanks
Robert Schneider, Clifford I. Voss
2002, Hydrogeology Journal (10) 1-2
No abstract available....
Impact source determination with biomonitoring data in New York State: Concordance with environmental data
Karen Riva-Murray, Robert W. Bode, Patrick J. Phillips, Gretchen L. Wall
2002, Northeastern Naturalist (9) 127-162
No abstract available....
Use of electronarcosis to immobilize juvenile lake and shortnose sturgeons for handling and the effects on their behavior
E. Henyey, B. Kynard, P. Zhuang
2002, Journal of Applied Ichthyology (18) 502-504
Low voltage constant direct current was used to immobilize juvenile lake (Acipenser fulvescens) and shortnose sturgeons (A. brevirostrum). There was no significant difference in time/ the lake or shortnose sturgeons required to exhibit positive rheotaxis between fish immobilized with electricity and control fish (two-way ANOVA, P = 0.11). Fish immobilized...
Studies on the detection, transmission, and development of Renibacterium salmoninarum infections in Great Lakes salmonid fishes. Report for June-September 2002.
R.J. Pascho, D.G. Elliott
2002, Report
Abstract not available ...
Growth and abundance of Pacific Sand Lance, Ammodytes hexapterus, under differing oceanographic regimes
Martin D. Robards, Floyd Gray, John F. Piatt
2002, Environmental Biology of Fishes (64) 429-441
Dramatic changes in seabird and marine mammal stocks in the Gulf of Alaska have been linked to shifts in abundance and composition of forage fish stocks over the past 20 years. The relative value (e.g., size and condition of individual fish, abundance) of specific forage fish stocks to predators under...
Gila trout - genetic broodstock management plan
H. L. Kincaid, R. Reisenbichler
2002, Report
Abstract not available ...
Use of an Acoustic Doppler Current Profiler (ADCP) to Measure Hypersaline Bidirectional Discharge
K. K. Johnson, B.L. Loving
Wahl T.L.Pugh C.A.Oberg K.A.Vermeyen T.B.Wahl T.L.Pugh C.A.Oberg K.A.Vermeyen T.B., editor(s)
2002, Conference Paper, Hydraulic Measurements and Experimental Methods
The U.S. Geological Survey measures the exchange of flow between the north and south parts of Great Salt Lake, Utah, as part of a monitoring program. Turbidity and bidirectional flow through the breach in the causeway that divides the lake into two parts makes it difficult to measure discharge with...
Estimating water-table change using microgravity surveys during an ASR program in Lancaster, California
J. F. Howle, S.P. Phillips, M. E. Ikehara, P.J. Dillon
2002, Conference Paper, International symposium on Artificial recharge of groundwater
No abstract available. ...
Major areas of ground-water development; Escalante Valley, Beryl-Enterprise area
H.K. Christiansen, Carole B. Burden
2002, Cooperative Investigations Report 43
No abstract available. ...
Fault structure and kinematics of the Long Valley Caldera region, California, revealed by high-accuracy earthquake hypocenters and focal mechanism stress inversions
Stephanie Prejean, William L. Ellsworth, Mark Zoback, Felix Waldhauser
2002, Journal of Geophysical Research B: Solid Earth (107) ESE 9-1-ESE 9-19
We have determined high-resolution hypocenters for 45,000+ earthquakes that occurred between 1980 and 2000 in the Long Valley caldera area using a double-difference earthquake location algorithm and routinely determined arrival times. The locations reveal numerous discrete fault planes in the southern caldera and adjacent Sierra Nevada block (SNB). Intracaldera faults...
Historical changes in lake ice-out dates as indicators of climate change in New England, 1850-2000
G.A. Hodgkins, Ivan James C. , I. C., T.G. Huntington
2002, International Journal of Climatology (22) 1819-1827
Various studies have shown that changes over time in spring ice-out dates can be used as indicators of climate change. Ice-out dates from 29 lakes in New England (USA) with 64 to 163 years of record were assembled and analysed for this study. Ice-out dates have become significantly earlier in...
Trophic strategies, animal diversity and body size
Kevin D. Lafferty, Armand M. Kuris
2002, Trends in Ecology and Evolution (17) 507-513
A primary difference between predators and parasites is the number of victims that an individual attacks throughout a life-history stage. A key division within natural enemies is whether a successful attack eliminates the fitness of the prey or the host. A third distinctive axis for parasites is whether the host...
A conceptual model of the Mount Spurr magmatic system from seismic and geochemical observations of the 1992 Crater Peak eruption sequence
J. Power, A. Jolly, C. Nye, M. Harbin
2002, Bulletin of Volcanology (64) 206-218
A conceptual model of the geometry and dynamics of the Mount Spurr magmatic system is developed using seismic, geochemical, and visual observations of the 1992 Crater Peak eruption sequence. The basis for this model is a new classification of all located seismic events and results from prior studies of seismology,...
Evaluating the impacts of wildland fires on caribou in interior Alaska
Kyle Joly, Layne G. Adams, Bruce W. Dale, William Collins
2002, Arctic Research of the United States (16) 63-67
Caribou are found throughout the boreal forests of interior Alaska, a region subject to chronic and expansive wildland fires. Fruticose lichens, if available, constitute the majority of the winter diet of caribou throughout their range and are common in mature boreal forests but largely absent from early successional stages. Fire,...
Monitoring of Lost River and shortnose suckers at the Sprague River Dam fish ladder, Oregon
E.C. Janney, R.S. Shively, B.S. Hayes, T.J. Tyler, G.N. Blackwood
2002, Report
Abstract not available ...
United States streamflow probabilities and uncertainties based on anticipated El Niño, water year 2003
M. Dettinger, D. Cayan, K. Redmond
2002, Experimental Long-Lead Forecast Bulletin (11) 46-52
During the course of spring and summer 2002, tropical sea-surface temperatures in the eastern Pacific Ocean have warmed and the wind and pressure fields have shifted, so that by August, there was considerable confidence that water year (October–September) 2003 will be characterized by a weak to mild El Niño climate...
Comparison of temporal trends in VOCs as measured with PDB samplers and low-flow sampling methods
P. T. Harte
2002, Ground Water Monitoring and Remediation (22) 45-47
Analysis of temporal trends in tetrachloroethylene (PCE) concentration determined by two sample techniques showed that passive diffusion bag (pdb) samplers adequately sample the large variation in PCE concentrations at the site. The slopes of the temporal trends in concentrations were comparable between the two techniques, and the pdb sample concentration...
Exploration
D.R. Wilburn
2002, Mining Engineering (54) 26-36
Exploration budgets fell for a fourth successive year in 2001. These decreases reflected low mineral commodity prices, mineral-market investment reluctance, company failures and a continued trend of company mergers and takeovers....
Anaerobic methane oxidation in a landfill-leachate plume
Ethan L. Grossman, Luis A. Cifuentes, Isabelle M. Cozzarelli
2002, Environmental Science & Technology (36) 2436-2442
The alluvial aquifer adjacent to Norman Landfill, OK, provides an excellent natural laboratory for the study of anaerobic processes impacting landfill-leachate contaminated aquifers. We collected groundwaters from a transect of seven multilevel wells ranging in depth from 1.3 to 11 m that were oriented parallel to the flow path. The...
Analysis of δ15N and δ18O to differentiate NO3− sources in runoff at two watersheds in the Catskill Mountains of New York
Douglas A. Burns, Carol Kendall
2002, Water Resources Research (38) 9-1-9-11
To quantify the movement of atmospheric nitrogen deposition through two forested watersheds in the Catskill Mountains of New York, dual‐isotope analysis (δ15N and δ18O) was used to differentiate NO3− derived from precipitation from NO3− derived by microbial nitrification and to quantify the contributions of these sources to NO3− in drainage waters. Samples of...
