Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 41763
An annotated list of the fishes of Great Smoky Mountains National Park
Abstract has not been submitted
Authors
R.E. Lennon
Quantitative sampling with the orange-peel dredge
Abstract has not been submitted
Authors
James W. Merna
The relative efficiency of nylon and cotton gill nets for taking lake trout in Lake Superior
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 1961, short gangs (2000 or 4000 linear feet) of cotton and nylon nets were fished in parallel sets
Authors
Richard L. Pycha
The occurrence of the longjaw cisco, Leucichthys alpenae, in Lake Erie
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 longer and deeper head, longer maxillary and fewer gill raker
Authors
W. B. Scott, Stanford H. Smith
Exposure of several developmental stages of the sea lamprey, Petromyzon marinus to selective larvicides
No abstract available.
Authors
George W. Piavis
Comparative toxicity of 3-trifluormethyl-4-nitrophenol (TFM) to larval lampreys and eleven species of fishes
The tolerances of larval lampreys, rainbow trout, and 10 species of warmwater fishes to 3-trifluormethyl-4-nitrophenol (TFM), a selective lamprey larvicide, were determined in three dilution waters of different physical and chemical characteristics. Differential toxic effects of the chemical to larval lampreys and test fishes varied broadly with the species of fish. Smallmouth bass and other centr
Authors
Vernon C. Applegate, Everett L. King
Three portable feeders for metering chemical into streams for control of sea lamprey
Abstract has not been submitted
Authors
Gaylord A. Anderson
Photometric microdetermination of malathion
Carboxylic esters and lactones react with alkaline hydroxylamine to yield hydroxamates; these in acidic solution form colored iron(III) complexes. A photometric determination of such esters and lactones is thus permitted and has been extensively applied ( I-6). Hestrin ( 3) utilized this method for the microdetermination of acetylcholine and his procedure is much used for the in vitro study of cho
Authors
B.J. Kallman
Occurrence of eastern encephalitis virus in house sparrows
No abstract available.
Authors
L. N. Locke, J. E. Scanlon, R. J. Byrne, J. O. Knisley
Renal coccidiosis in oldsquaws (Clangula hyemalis) from Alaska
Renal coccidiosis was found in 4 of 12 oldsquaw ducks (Clangula hyemalis) collected from the north slope of Alaska and Prince William Sound. Numerous 1 to 2 mm white foci were observed on the kidney surface of one bird. Microscopically, there was distention of renal tubules with oocysts, flattening of tubular epithelium, and interstitial accumulation of mononuclear cells. Kidneys from several othe
Authors
J. Christian Franson, Dirk V. Derksen