Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

184617 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 6767, results 169151 - 169175

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Geology and ore deposits of the Globe-Miami district, Arizona
N. P. Peterson
1962, Professional Paper 342
The rocks of the Globe-Miami district range from lower Precambrian to Recent. The oldest formation, the Pinal schist, comprises several varieties of schist formed by dynamic and thermal metamorphism of shale and feldspathic sandstone during the early Precambrian Mazatzal revolution. During the later stages of this revolution, the schist was...
The relative efficiency of nylon and cotton gill nets for taking lake trout in Lake Superior
Richard L. Pycha
1962, Journal of the Fisheries Research Board of Canada (19) 1085-1094
The change from cotton to nylon twine for gill nets in 1949–52 resulted in a sharp increase in the efficiency of the most important gear used for taking lake trout in Lake Superior, and, consequently, biased estimates of fishing intensity and abundance severely.From early May to the end of September...
The occurrence of the longjaw cisco, Leucichthys alpenae, in Lake Erie
W. B. Scott, Stanford H. Smith
1962, Journal of the Fisheries Research Board of Canada (19) 1013-1023
The longjaw cisco, Leucichthys alpenae, is shown to be a species new to the Lake Erie fauna. The taxonomic work on Lake Erie ciscoes is reviewed. Thirty three specimens of L. alpenae taken in 1946, 1947 and 1957 are compared morphometrically with Leucichthys artedi of Lake Erie, the only other cisco species in the lake. L. alpenae has a...
Water and the arid zone of the United States
Luna Bergere Leopold
1962, Conference Paper
In a pluvial period associated with Wisconsin glaciation the closed basin of the Estancia Valley in New Mexico held a lake which, at its maximum extent, was 150 feet deep and had a surface area of 450 square miles. This basin, with a mean elevation of about 6,000 feet, has...
Developing ground water in the central Sevier Valley, Utah
Richard A. Young, Carl H. Carpenter
1961, Utah State Engineer Information Bulletin 5
This report presents a summary of conclusions reached from the recently completed State Engineer-United States Geological Survey cooperative investigation of the geology and ground water resources of the central Sevier River Valley. The detailed report will be published as a United States Geological Survey water supply paper and will be...
Relation of the deep and shallow artesian aquifers near Lynndyl, Utah
R. W. Mower
1961, Utah State Engineer Information Bulletin 7
Ground water occurs in several aquifers in the vicinity of Lynndyl, Utah. There are one shallow perched water-table aquifer and at least two artisan aquifers. The perched aquifer is not related to the artisan aquifers and, because it is relatively unimportant, is not discussed here. Pumping tests made during the...
Geology and ground-water resources of Sumner County, Kansas
K.L. Walters
1961, Kansas Geological Survey Bulletin (151)
This report describes the geography, geology, and ground-water resources of Sumner County in south-central Kansas. The hydrologic and geologic data upon which this report is based were obtained in the field during the summers of 1955 and 1956. Records of 300 wells and 2 springs, chemical analyses of 219 water...
Trout hepatoma--a preliminary report
R.R. Rucker, W. T. Yasutake, H. Wolf
1961, Progressive Fish-Culturist (23) 3-7
Fish pathology and its role in fish culture were brought into prominence in the spring of 1960 by the disclosure of a high incidence of hepatomas in hatchery-reared rainbow trout. The current problem came to light as the result of a routine inspection of live trout shipments at a California...
Blood types in Pacific salmon
G.L. Ridgway, G.W. Klontz
1961, International North Pacific Fisheries Commission Bulletin 49-55
Intraspecific differences in erythrocyte antigens (blood types) were shown to occur in four species of Pacific salmon, the sockeye or red salmon (Oncorhynchus nerka), the chinook or king salmon (0. tshawytscha), the chum salmon (O. keta), and the pink salmon (O. gorbuscha). Antisalmon-erythrocyte sera prepared in rabbits and chickens were...
Chemotherapy of hexamitiasis in fish
W. T. Yasutake, D. R. Buhler, W.E. Shanks
1961, Journal of Parasitology (47) 81-86
Heramita salmonis, the causative agent of hexamitiasis in salmonoid fishes, is endemic in most trout and salmon hatcheries throughout North America. The etiologic agent, a protozoan flagellate, ostensibly causes cellular damage in the caecal mucosa of afflicted fishes. It is also believed that heavy infections may interfere with normal growth...
The use of merthiolate on green eggs of the Chinook salmon
R.R. Rucker
1961, Progressive Fish-Culturist (23) 138-141
MERTHIOLATE has been used as a disinfecting agent for green and eyed eggs of various species (Gee and Sarles 1942, Snieszko and Friddle 1948). The present report is a description of the effects of the chemical on green eggs of the chinook salmon (Oncorhynchus tshawytscha). The need for this study was...
Rapid counting of nematoda in salmon by peptic digestion
Joseph A. Stern, Diptiman Chakravarti, J. R. Uzmann, M. N. Hesselholt
1961, International North Pacific Fisheries Commission Bulletin (3)
The nematode parasite Anisakis sp. can be recovered, relatively unaltered, from chum salmon musculature by high temperature (52°+2°C.) peptic digestion of the flesh. The procedure, which is presented in detail, appears to be more thorough in isolating the parasite than dissection of the flesh and manual isolation of the worms....