Generalized adjustment by least squares ( GALS).
A.A. Elassal
1983, Photogrammetric Engineering and Remote Sensing (49) 201-206
The least-squares principle is universally accepted as the basis for adjustment procedures in the allied fields of geodesy, photogrammetry and surveying. A prototype software package for Generalized Adjustment by Least Squares (GALS) is described. The package is designed to perform all least-squares-related functions in a typical adjustment program. GALS is...
Structure, burial history, and petroleum potential of frontal thrust belt and adjacent foreland, southwest Montana
W. J. Perry Jr., B. R. Wardlaw, N. H. Bostick, E. K. Maughan
1983, American Association of Petroleum Geologists Bulletin (67) 725-743
The frontal thrust belt in the Lima area of southwestern Montana consists of blind (nonsurfacing) thrusts of the Lima thrust system beneath the Lima anticline and the Tendoy thrust sheet to the west. The Tendoy sheet involves Mississippian through Cretaceous rocks of the southwest-plunging nose of the Mesozoic Blacktail-Snowcrest uplift...
Chryse Basin channels: low-gradients and ponded flows.
Baerbel K. Lucchitta, H.M. Ferguson
1983, Journal of Geophysical Research (88) A553-A568
Gradients on the floors of the Martian outflow channels that are derived from radar-elevation profiles across Lunae Planum and Chryse Basin have much lower values than those obtained from the U.S. Geological Survey's topographic map. Whereas the gradients of Maja and Ares Valles are similar to those of the catastrophic...
Lead-isotopic compositions of diverse igneous rocks and ore deposits from southwestern New Mexico and their implications for early Proterozoic crustal evolution in the western United States
J. S. Stacey, D. C. Hedlund
1983, Geological Society of America Bulletin (94) 43-57
U-Pb zircon measurements from some of the basement rocks in southwestern New Mexico have ages that range from 1,650 to 1,450 m.y.The largest ore deposits occur near Silver City in the southwest part of the region studied. They are associated with Laramide alkali...
Distribution of quaternary radiolaria in the Navarin Basin geologic province, Bering Sea
J. R. Blueford
1983, Deep Sea Research Part A, Oceanographic Research Papers (30) 763-781
Radiolarians from the surface sediments of the Navarin Basin geologic province in the western part of the Bering Sea are more diverse and abundant than previous reports indicate. The shelf is dominated by two spongy radiolarian species groups (Stylochlamydium venustum and Spongotrochus glacialis groups), while the slope has more diversity. The distributions can...
Recent geologic development of Lake Michigan (U.S.A.)
D.L. Gross, R.A. Cahill
1983, Hydrobiologia (103) 193-198
The stresses placed on Lake Michigan since the advent of industrialization require knowledge of the sedimentology of the whole lake in order to make informed decisions for environmental planning. Sediment accumulation rates are low: areas of the lake receiving the most sediment average only 1 mm a-1; deep-water basins average...
River discharge controls phytoplankton dynamics in the northern San Francisco Bay estuary
J. E. Cloern, A.E. Alpine, B.E. Cole, R.L.J. Wong, J.F. Arthur, M.D. Ball
1983, Estuarine, Coastal and Shelf Science (16) 415-429
Phytoplankton dynamics in the upper reach of the northern San Francisco Bay estuary are usually characterized by low biomass dominated by microflagellates or freshwater diatoms in winter, and high biomass dominated by neritic diatoms in summer. During two successive years of very low river discharge (the drought of 1976-77), the...
Development of reaction models for ground-water systems
Niel Plummer, D.L. Parkhurst, D.C. Thorstenson
1983, Geochimica et Cosmochimica Acta (47) 665-685
Methods are described for developing geochemical reaction models from the observed chemical compositions of ground water along a hydrologic flow path. The roles of thermodynamic speciation programs, mass balance calculations, and reaction-path simulations in developing and testing reaction models are contrasted. Electron transfer is included in the mass balance equations...
Origin of concretionary Mn-Fe-oxides in stream sediments of Maine, U.S.A.
G.A. Nowlan, J. B. McHugh, T. D. Hessin
1983, Chemical Geology (38) 141-156
Studies of stream and sediment-pore waters largely explain the genesis of concretionary Mn-Fe-oxides in Maine. Waters of two small streams near Jackman, Maine, were studied in terms of pH, Eh, dissolved oxygen, dissolved organic carbon, dissolved Mn, total dissolved Fe, and ferrous and ferric Fe. Pyrite Creek has profuse concretions...
Atomic-absorption determination of mercury in geological materials by flame and carbon-rod atomisation after solvent extraction and using co-extracted silver as a matrix modifier
R. F. Sanzolone, T. T. Chao
1983, The Analyst (108) 58-63
Based on modifications and expansion of the original Tindall's solvent extraction flame atomic-absorption procedure, an atomic-absorption spectrophotometric method has been developed for the determination of mercury in geological materials. The sample is digested with nitric and hydrochloric acids in a boiling water-bath. The solution is made ammoniacal and potassium iodide...
Salmonella enteritidis isolated from an eared grebe (Podiceps nigricollis)
Ruth M. Duncan, Richard K. Stroud, Louis N. Locke
1983, Journal of Wildlife Diseases (19) 63-64
The reported prevalence of salmonellosis in wild birds is relatively low, though the number of species of birds reported as having the disease or being carriers of the organism is increasing (Faddoul et al., 1966, Avian Dis. 10: 89- 94). The course of the disease in birds ranges from acute...
Inbreeding in fish populations used for aquaculture
Harold L. Kincaid
1983, Aquaculture (33) 215-227
The theoretical causes of inbreeding depression are reviewed. Studies to measure depression at a series of inbreeding levels in rainbow trout populations using the method of inbred-outbred half-sib families are discussed. While the actual depression estimates varied widely between populations and inbreeding levels, significant levels of depression were found in...
[Book review] Microbial Diseases of Fish, edited by R. J. Roberts
S. F. Snieszko
1983, Canadian Journal of Fisheries and Aquatic Sciences (40) 1847-1848
Review of: Microbial Diseases of Fish. Edited by R.J. Roberts, Special Publication No. 9 of the Society for General Microbiology. Academic Press, London. 1982. 305 p. $40.50 (U.S.)....
Growth and survival of Atlantic salmon fed semimoist or dry starter diets
C. A. Lemm
1983, Progressive Fish-Culturist (45) 72-75
Growth and survival were compared for first‐feeding fry of Atlantic salmon (Salmo salar) fed a closed‐formula commercial preparation, BioDiet, or U.S. Fish and Wildlife Service high nutrient density diets 398 or 406 for 14 weeks. Growth of fry fed BioDiet for 2, 3, 4, or 6 weeks from first feeding...
You asked for it! Proper use of fish culturists and biologists and some thoughts on fall activities
M. Martin
1983, Aquaculture Magazine (10) 38-40
Use of surface water for rearing channel catfish in ponds
Dewey L. Tackett, Ray R. Carter
1983, Progressive Fish-Culturist (45) 179-180
No abstract available....
Factors affecting dietary requirement and deficiency signs of L-tryptophan in rainbow trout
H. A. Poston, G. L. Rumsey
1983, Journal of Nutrition (113) 2568-2577
Two experiments were conducted to determine the concentration of dietary tryptophan needed for optimal growth and survival of fingerling rainbow trout (Salmo gairdneri), to characterize signs of tryptophan deficiency, and to ascertain the effects of niacin on deficiency signs. Test diets containing either hydrolyzed or intact casein were fed with...
Effect of population density of lake trout in cylindrical jars on growth and oxygen consumption
H. A. Poston
1983, Progressive Fish-Culturist (45) 8-13
Lake trout (Salvelinus namaycush), initial weight 2.25 g, were reared at population densities of 25, 50, 75, 100, and 125 fish in 6.55‐L cylindrical jars for 20 weeks with a mean water flow of 2.45 L/min. All fish survived the experiment. A significant (P < 0.05) reduction in growth occurred...
Fisheries news: NFC hosts Fish Health Workshop
G.S. Gutsell
1983, Fisheries (8) 39-39
No abstract available....
From the U.S. Department of Interior
G.S. Gutsell
1983, Trout Growers Creel (16) 12-13
U.S. Department of the Interior News Release
G.S. Gutsell
1983, Trout Growers Creel (16) 9
Serological comparison of selected isolates of Aeromonas salmonicida ssp. Salmonicida
G.B. Hahnel, R. W. Gould, E.S. Boatman
1983, Journal of Fish Diseases (6) 1-11
Eight isolates of Acronionus salmonicida ssp. salmonicida were collected during furunculosis epizootics in North American Pacific coast states and provinces. Both virulent and avirulent forms of each isolate, confirmed by challenge and electron microscopy, were examined. Serological comparisons by cross-absorption agglutination tests revealed no serological differences between isolates. Using...
Effect of temperature on production of tiger muskellunge in intensive culture
J. W. Meade, W. F. Krise, T. Ort
1983, Aquaculture (32) 157-164
Tiger muskellunge (Esox masquinony × E. lucius) juveniles were reared at constant temperatures in the temperature range 14–28°C. For fish 3–4 cm long, growth, production and feed conversion efficiency were greatest at 20–22°C. Survival was reduced and unaccountable mortality (cannibalism index) was greatest at 24°C. Growth per unit of temperature...
Preliminary evaluation of Ivermectin for control of Psoroptes ovis in Desert Bighorn Sheep
H.G. Kinzer, W.P. Meleney, Robert E. Lange Jr., W.E. Houghton
1983, Journal of Wildlife Diseases (19) 52-54
No abstract available....
Effective flow-through vacuum degasser for fish hatcheries
J. T. Fuss
1983, Aquacultural Engineering (2) 301-307
Since the fry of certain species of fish cannot tolerate even slight amounts of supersaturation, their water supplies must be degassed. Gas content can be reduced to subsaturated, sublethal levels by passing it through the vacuum degasser described here. The system includes a low-cost, flow-through unit easily capable of degassing...
