Responses of plankton communities to the introduction of grass carp into some Georgia ponds
T.T. Terrell
1982, Journal of Freshwater Ecology (1) 395-406
Net plankton community structure and numbers were studied in soft-water, acidic ponds containing aquatic macrophytes, after introduction of the herbivorous grass carp (Ctenopharyngodon idella). The plankton communities in ponds with grass carp consisted of significantly fewer individuals, genera, and orders than did the communities in control ponds. Expected shifts...
Gasometer: An inexpensive device for continuous monitoring of dissolved gases and supersaturation
G.R. Bouck
1982, Transactions of the American Fisheries Society (111) 505-516
The “gasometer” is a device that measures differential dissolved-gas pressures (δP) in water relative to barometric pressure (as does the “Weiss saturometer”), but operates continuously without human attention. The gasometer can be plumbed into a water-supply system and requires 8 liters/minute of water or more at 60 kilopascals. The...
Reproduction and early-life accommodations of landlocked alewives to a southern range extension
A.A. Nigro, John J. Ney
1982, Transactions of the American Fisheries Society (111) 559-569
Reproduction and first-year growth and food habits of landlocked alewives Alosa pseudoharengus in Claytor Lake, Virginia were examined and compared to descriptions for populations in the species' established New England-Great Lakes range. Alewives in mesothermal (2–27 C) Claytor Lake are shorter-lived (3 years) but grow faster, mature earlier (age 1),...
Seepage study of the Sevier River and the Central Utah, McIntyre, and Leamington Canals, Juab and Millard Counties, Utah
L. R. Herbert, R.W. Cruff, W. F. Holmes
1982, Technical Publication 74
A study of the gains or losses of the Sevier River and the Central Utah, McIntyre, and Leamington Canals in the Leamington area, in Juab and Millard Counties, Utah, was made to determine changes in those reaches. Three to seven sets of seepage measurements made during 1980 were used in...
Developing a state water plan: Ground-water conditions in Utah, spring of 1982
Walter F. Holmes, L. R. Herbert, D.A. Bischoff, Melanie E. Smith, R. L. Seiler, Judy I. Steiger, Cynthia L. Appel, V.L. Jensen, Michael Enright, D. C. Emett, Carole B. Burden, R.C. Beard, L.G. Sultz, M.R. Eckenwiler, G. W. Sandberg
1982, Cooperative Investigations Report 22
This is the nineteenth in a series of annual reports that describe ground-water conditions in Utah. Reports in this series, published cooperatively by the U.S. Geological Survey and the Utah Division of Water Resources, provide data to enable interested parties to keep abreast of changing ground-water conditions.This report, like...
Reconnaissance of the quality of surface water in the San Rafael River basin, Utah
J. C. Mundorff, Kendall R. Thompson
1982, Technical Publication 72
The water-quality reconnaissance of the San Rafael River basin, Utah, encompassed an area of about 2,300 square miles (5,960 square kilometers). Data were obtained by the U.S. Geological Survey one or more times at 116 sites from June 1977 to September 1978. At 19 other sites visited during the same...
Ground-water resources in the central part of the Flathead Indian Reservation, northwestern Montana
Arnold J. Boettcher
1982, Memoir 48
Hydrology of the Beryl-Enterprise area, Escalante Desert, Utah, with emphasis on ground water; With a section on surface water
Reed W. Mower, George Woodard Sandberg
1982, Technical Publication 73
An investigation of the water resources of the Beryl-Enterprise area, Escalante Desert, Utah (pl. 1), was made during 1976-78 as part of a cooperative program with the Utah Department of Natural Resources, Division of Water Rights. Wells were the most important source of water for all purposes in the Beryl-Enterprise...
Water resources inventory of Connecticut Part 10: Lower Connecticut River basin
Lawrence A. Weiss, James W. Bingham, Mendall P. Thomas
1982, Connecticut Water Resources Bulletin 31
The lower Connecticut River basin study area in south-central Connecticut includes 639 square miles and is drained principally by the Connecticut River and by seven smaller streams that flow directly to Long Island Sound between the West River on the west and the Connecticut River on the east. The population...
A rapid high-performance liquid-chromatographic method for simultaneously determining the concentrations of TFM and Bayer 73 in water during lampricide treatments
V. K. Dawson
1982, Canadian Journal of Fisheries and Aquatic Sciences (39) 778-782
The high-performance liquid-chromatography (HPLC) procedure requires only minutes per sample, is specific, and is relatively sensitive (limit of detection 18 disposable...
Use of ozone in a water reuse system for salmonids
R.C. Williams, S. G. Hughes, G. L. Rumsey
1982, Progressive Fish-Culturist (44) 102-105
A water reuse system is described in which ozone is used in addition to biological filters to remove toxic metabolic wastes from the water. The system functions at a higher rate of efficiency than has been reported for other reuse systems and supports excellent growth of rainbow trout (Salmo gairdneri)....
Puzzling mass movement features in the Navarinsky Canyon head, Bering Sea
P.R. Carlson, Herman A. Karl, B. D. Edwards
1982, Geo-Marine Letters (2) 123-127
Two types of morphologic features in the head of Navarinsky Canyon are attributed to mass movement of near-surface sediment. A series of pull-aparts is located downslope of large sand waves. These pull-aparts, possibly induced by liquefaction, affect the upper 5 to 10 m of sandy sediment (water depths 350 to...
Erosional channels on the shoreface of Nauset Beach, Cape Cod, Massachusetts
S. W. Needell, William P. Dillon, H.J. Knebel
1982, Geo-Marine Letters (2) 61-64
Many channels (1 to 3 m relief)_are located offshore of Nauset Beach, Cape Cod, Massachusetts, in water 4 to 18 m deep. The channels are oblique to the shoreline, are spaced approximately 260 m apart, and deepen seaward. The southern flank of each channel is rippled whereas the northern flank...
Short-term effects of oil ingestion on American kestrels (Falco sparverius)
O. H. Pattee, J. C. Franson
1982, Journal of Wildlife Diseases (18) 235-241
The Mexican Ixtoc oil well blowout resulted in extensive oil contamination along the Texas Gulf coast. This oil posed a potential hazard to migrating birds including the endangered peregrine falcon (Falco peregrinus). Laboratory tests with the American kestrel (Falco sparverius) indicated that the oil: water mixture gathered at the surface...
Food habits of diving ducks in the Carolinas
Matthew C. Perry, F.M. Uhler
1982, Proceedings of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies (36) 492-504
Food habits analyses were conducted on 264 diving ducks (7 species) from North and South Carolina during the 1970'S. The Baltic clam (Macoma balthica) was the predominant food among canvasbacks (Aythya valisineria) from the Pamlico River area, whereas sago pondweed (Potamogeton pectinatus) predominated in birds from impoundments in North...
Shotshell and shooter effectiveness: Lead vs. steel shot for duck hunting
D.D. Humburg, S.L. Sheriff, P.H. Geissler, T. Roster
1982, Wildlife Society Bulletin (10) 121-126
Shooter and shotshell effectiveness were tested during the 1979 waterfowl season at the Schell-Osage Wildlife Management Area (WMA), Missouri. Hunters who participated in the study bagged 1,967 ducks with 10,587 shots. No significant differences in bagging, crippling, or missing rates were measured among 4 Winchester 12 gauge loads: #4 buffered...
Lead shot incidence in sediments and waterfowl gizzards from Merrymeeting Bay, Maine
J. R. Longcore, P.O. Corr, H.E. Spencer Jr.
1982, Wildlife Society Bulletin (10) 3-10
Lead shot in bottom sediments from Merrymeeting Bay, Maine, averaged 99,932 shot/ha. More shot (P < 0.05) was present in silt sediments than in sand sediments. Number 6 size shot was the most abundant in all 6 river deltas sampled. Ingested lead shot occurred in gizzards of...
A field evaluation of frogs as a potential source of secondary organophosphorus insecticide poisoning
G.V.N. Powell, L.R. DeWeese, T. G. Lamont
1982, Canadian Journal of Zoology (60) 2233-2235
Because amphibians are relatively resistant to organophosphorus insecticides and can bioaccumulate residues to high levels, they may be a source of secondary poisoning for vertebrates that feed on them. This hypothesis was tested by determining residues in breeding upland chorus frogs Pseudacris triseriata, that were collected from ponds treated...
Sea turtle distribution along the boundary of the Gulf Stream current off eastern Florida
W. Hoffman, T. H. Fritts
1982, Herpetologica (38) 405-409
Aerial surveys, out to 222 km off the east coast of central Florida during August 1980, revealed that marine turtles were distributed in a narrow zone west of the Gulf Stream. Of 255 loggerhead turtles, Caretta caretta, only three were observed east of the western boundary of the Gulf...
Effects of a chemical dispersant and crude oil on breeding ducks
P.H. Albers, M. L. Gay
1982, Bulletin of Environmental Contamination and Toxicology (29) 404-411
Effects of chemically dispersed crude oil on mallard reproduction. Incubating female mallards were exposed to a water source treated with either Prudhoe Bay crude oil, Corexit 9527, or a combination of oil and dispersant during the first 10 da of development. Used thermocouple probes to monitor incubation temperature....
Estimating reproductive success in colonial waterbirds: An evaluation
R.M. Erwin, T. W. Custer
1982, Colonial Waterbirds (5) 49-56
To estimate reproductive success in a population one ideally would like to determine the number of young fledged per nesting female. However, this is difficult because often (1) the adults are not individually marked, (2) the colony is not visited daily, and (3) the investigator is unable to monitor...
Observer variability in estimating numbers: An experiment
R.M. Erwin
1982, Journal of Field Ornithology (53) 159-167
Census estimates of bird populations provide an essential framework for a host of research and management questions. However, with some exceptions, the reliability of numerical estimates and the factors influencing them have received insufficient attention. Independent of the problems associated with habitat type, weather conditions, cryptic coloration, ete.,...
Organophosphate insecticide poisoning of Canada geese in the Texas panhandle
Donald H. White, C. A. Mitchell, L.D. Wynn, Edward L. Flickinger, E. J. Kolbe
1982, Journal of Field Ornithology (53) 22-27
Sixteen hundred waterfowl, mostly Canada Geese, died near Etter, Texas, in late January 1981 from anticholinesterase poisoning. Winter wheat in the area of the die-off had been treated with organophosphate insecticides to control greenbugs. Cholinesterase (ChE) levels in brains of a sample of geese found dead were 75%...
Physical, Hydrological, and Biological Characteristics of the Loxahatchee River Estuary, Florida
Benjamin F. McPherson, Maryann Sabanskas, William A. Long
1982, Water-Resources Investigations Report 82-350
The Loxahatchee River estuary empties into the Atlantic Ocean at Jupiter Inlet in southeastern Florida. Although relatively small, the estuary is important for its esthetic value and for its sport fishing, boating, recreation, tourism, and prime residential development. In recent years, the condition of the estuary has become of concern...
The peregrine falcon in Arizona: Habitat utilization and management recommendations
D. H. Ellis
1982, Institute for Raptor Studies Research Reports 1.
The peregrine falcon once bred in significant numbers in Arizona. Good documentation is available for specific breeding sites and an additional 20 general locations. This report, based on the published literature, an extensive personal contact survey, an aerial habitat inventory (over 124 hours air time), and ground visits to...
