Production of sea lamprey larvae from nests in two Lake Superior streams
Patrick J. Manion
1968, Transactions of the American Fisheries Society (97) 484-486
The life history of the landlocked sea lamprey, Petromyzon marinus, has been described by several authors, the two most recent of which are Applegate and Wigley. The only information on the production of larvae from nests of the sea lamprey was reported by Applegate, who counted the larvae from three...
The alewife
Stanford H. Smith
1968, Limnos (1) 12-20
When the first alewife, Alosa pseudoharengus, was discovered in Lake Michigan near South Manitou Island on May 5, 1949, few people would have guessed that it would become the best known fish of the lake in less than two decades. Now it competes only with the coho salmon in...
A preliminary report of a recently discovered aquifer at Sioux Falls, South Dakota
Kenneth D. Vaughan, Earl A. Ackroyd
1968, South Dakota Academy of Science Proceedings (47) 68-74
A hydrologic study of the Big Sioux aquifer system was begun July 1, 1966, by the U.S. Geological Survey, in cooperation with the City of Sioux Falls and the East Dakota Conservancy Sub-District. Test drilling being done in the search for a southern outlet to the Big Sioux aquifer has...
Annulus formation on scales of four species of coregonids reared under artificial conditions
Walter J. Hogman
1968, Journal of the Fisheries Research Board of Canada (25) 2111-2122
Scales from known-age coregonids reared in the laboratory were examined to determine when annuli formed and to learn possible factors of their formation. Scales were taken monthly from marked fish for periods up to 21 months. Scales were also examined from fish that died and from preserved specimens of young-of-the-year...
An electric beam trawl for the capture of larval lampreys
Alberton McLain, Frederick H. Dahl
1968, Transactions of the American Fisheries Society (97) 289-293
The chemicals used to control the sea lamprey, Petromyzon marinus, in the Great Lakes have drastically reduced populations of larval lampreys in tributary streams. These larvicides are too costly and difficult to apply, however, in inland lakes, estuaries, and bays. Populations of sea lampreys in these areas constitute...
Seasonal depth distribution of fish in southeastern Lake Michigan
LaRue Wells
1968, Fishery Bulletin (67) 1-15
This study is based on systematic seasonal bottom trawling between 3 and 50 fathoms (5.5 and 91.5 m.) from February to November 1964 and supplementary information from other experimental fishing at additional depths and with other gear. The seasonal depth distribution of eight common species is described, and temperature relations...
Distribution and abundance of the Japanese snail, Viviparus japonicus, and associated macrobenthos in Sandusky Bay, Ohio
David R. Wolfert, Jarl K. Hiltunen
1968, Ohio Journal of Science (68) 32-40
A survey of the macrobenthos of Sandusky Bay, Lake Erie, in June, 1963, provided information on the abundance and distribution of the introduced Japanese snail, Viviparus japonicus, which has become a nuisance to commercial seine fishermen. The abundance and distribution varied considerably within the bay; at the time of the...
Ground-water discharge from the Edwards and associated limestones, San Antonio area, Texas, 1967
Paul Rettman
1968, Edwards Underground Water District Bulletin 17
No abstracts available....
Records of precipitation, aquifer head, and ground-water recharge to the Edwards and associated limestones, San Antonio area, Texas, 1967
Paul Rettman
1968, Edwards Underground Water District Bulletin 18
No abstracts available....
Current status of whirling disease in salmonids in U.S
G. L. Hoffman
1968, American Fishes and U.S. Trout News (November-December) 10, 12, 19-20
Nuclear magnetic resonance studies of the phosphorus(v) pesticides: A rapid determination of the isomer ratio of systox
H. Babad, T.N. Taylor, M. C. Goldberg
1968, Analytica Chimica Acta (40) 387-392
The integration circuit of the Varian A-60 nuclear magnetic resonance spectrometer is used in conjunction with vapor phase chromatography, to develop a rapid analysis technique for the determination of isomer ratios in technical Systox-Sulfotepp mixtures. The complete analysis requires less than 0.1 g of sample...
Antimycin for controlling sunfish populations in ponds
R.M. Burress
1968, Farm Pond Harvest (2) 11,12, 22
Abstract has not been submitted...
Lead isotopes and the origin of granulite and eclogite inclusions in deep-seated pipes
J.F. Lovering, M. Tatsumoto
1968, Earth and Planetary Science Letters (4) 350-356
The isotopic composition of lead and the concentrations of lead, uranium, and thorium in Delegate basic pipes from Australia and in South African kimberlite pipes have been determined. The observed238U/204Pb and observed232Th/238U of eclogite inclusions in the pipes range from 2.9 to 18.7 and from 3.5 to 5.9, respectively. This...
Structural charge site influence on the interlayer hydration of expandable three-sheet clay minerals
Raymond L. Kerns Jr., Charles J. Mankin
1968, Clays and Clay Minerals (16) 73-81
Previous investigations have demonstrated the influences of interlayer cation composition, relative humidity, temperature, and magnitude of interlayer surface charge on the interlayer hydration of montmorillonites and vermiculites. It has been suggested that the sites of layer charge deficiencies may also have an influence upon the amount of hydration that can...
An investigation of the source of air Ar contamination in K-Ar dating
A. E. Mussett, G. Brent Dalrymple
1968, Earth and Planetary Science Letters (4) 422-426
Precision of young KAr ages is limited by air argon contamination. A series of experiments in which the exposure of basalt and sanidine samples to air argon was controlled, shows that most of the air contamination does not...
Distribution of manganese between coexisting biotite and hornblende in plutonic rocks
L. P. Greenland, D. Gottfried, R.I. Tilling
1968, Geochimica et Cosmochimica Acta (32) 1149-1163
The distribution of manganese between coexisting biotite and hornblende for 80 mineral pairs from igneous rocks of diverse provenance (including Southern California, Sierra Nevada, Boulder, and Boulder Creek batholiths and the Jemez Mountains volcanics) has been determined by neutron activation analysis. Data on...
Chemical potential of water from measurements of optic axial angle of zeolites
Eberlein G. Donald, C. L. Christ
1968, Science (162) 1145-1146
Values of the uncorrected optic axial angle (2Hα) of a crystal of the calcium zeolite stellerite (CaAl2Si7Ol8 · 7H20) immersed in calcium chloride solutions...
On the quantitative inventory of the riverscape
Luna Bergere Leopold, Maura O’Brien Marchand
1968, Water Resources Research (4) 709-717
In the vicinity of Berkeley, California, 24 minor valleys were described in terms of factors chosen to represent aspects of the river landscape. A total of 28 factors were evaluated at each site. Some were directly measurable, others were estimated, but each observation was assigned to one of five categories...
A distinction between bedrock and unconsolidated deposits on 3-5u infrared imagery of the Yellowstone rhyolite plateau
Robert L. Christiansen
1968, Open-File Report 68-34
Infrared imagery covering most of Yellowstone National Park was obtained in August 1966, by H. R. B. Singer Company, using the Reconofax IV system in an aircraft flying at about 20,000 feet. This imagery has been examined in order to evaluate the geologic information it contains in relation to a...
[Book review] Waterfowl--their biology and natural history, by Paul A. Johnsgard
H.K. Nelson
1968, Atlantic Naturalist (23) 230-232
Review of: Waterfowl. Their Biology and Natural History. Johnsgard, Paul A. University of Nebraska Press, Lincoln and London 1968. XVIII+138 pages....
Geological Survey research 1968: Chapter C
Water Resources Division, U.S. Geological Survey
1968, Professional Paper 600-C
No abstract available....
Ground-water reconnaissance of the Santa Barbara-Montecito area, Santa Barbara County, California
K. S. Muir
1968, Water Supply Paper 1859-A
This is the third interpretive report prepared by the U.S. Geological Survey in cooperation with the Santa Barbara County Water Agency on the groundwater resources of areas along the south coast of the county. The two previous reports--one by J. E. Upson in 1951 and another by R. E. Evenson,...
Silver-bearing black calcite in western mining districts
D. F. Hewett, A. S. Radtke
1967, Economic Geology (62) 1-21
The name black calcite has been applied from time to time to a dark gray to black variety of calcite or aragonite in metalliferous ore deposits in the Western States. Most of the material shows curved, roughly rhombic cleavage. The color is due to dispersed minute grains of one or...
Geology and mineral resources of Page County
R. M. Allen
1967, Book, Bulletin (Virginia Geological Survey)
The effect of pumping large-discharge wells on the ground-water reservoir in southern Utah Valley, Utah County, Utah
R.M. Cordova, R. W. Mower
1967, Utah State Engineer Information Bulletin 18
An extensive aquifer test in southern Utah Valley, Utah County, Utah, was made during January-March 1967 by the U.S. Geological Survey in cooperation with the Utah State Engineer. The purpose of the test was to obtain data about the hydraulic characteristics of the aquifer in the valley and to determine...
