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
Invertebrate macrobenthos of western Lake Superior
The present report contributes to knowledge of the relative abundance of major groups of benthic invertebrates in western Lake Superior, primarily in the Apostle Islands region. Observations are made on the depth habitation of certain species, and some of the fauna are compared to that in some of the other Great Lakes. Also included is a note on the catch of benthic organisms in a plankton-net t
Authors
Jarl K. Hiltunen
Distribution of oligochaetes in western Lake Erie, 1961
A total of 52,390 oligochaetes were collected from 40 stations in western Lake Erie in spring 1961. The population was composed of two families, Naididae and Tubificidae. Only six species of naidids were found. One, Paranais frici, is apparently new to the list of North American freshwater Naididae. Among the 14 tubificids found, five species of Limnodrilus were most abundant; they contributed 90%
Authors
Jarl K. Hiltunen
Cisco (Coregonus artedii) mortalities in a southern Michigan lake, July 1968
Cisco die-offs are common in the summer in certain lakes of northern Indiana and southern Michigan, along the southern boundary of the national distribution of coregonine fishes. Although numerous cisco die-offs have been reported, few, if any, have been accompanied by environmental information at the time of the die-off. On 31 July and 1 August 1968, we investigated a cisco die-off on Halfmoon La
Authors
Peter J. Colby, Larry T. Brooke
Age, growth, and maturity of the longnose sucker Catostomus catostomus, of western Lake Superior
Studies of age, growth, and maturity were based on 1760 fish collected in western Lake Superior in 1964-65. The body:scale relation was curvilinear and the curve had an intercept of 1.65 inches on the length axis. The weight increased as the 2.85 power of the length. Some fish formed an annulus before May 18 in 1965; all had completed annuli by late September. Longnose suckers grew 3.6 inches the
Authors
Merryll M. Bailey
Rapid determination of filterable residue in natural waters
The most widely used procedures for determining filterable residue (total dissolved solids) in water are macromethods given in Standard Methods. Although macromethods give good results, they require large amounts of water and long drying times. This report describes a microtechnique for determining filterable residue that requires only 0.05 ml of water and 15 min/sample drying time. The sensiti
Authors
Herbert E. Allen, Charles W. Bacon
Environment of Mesa Verde, Colorado
No abstract available at this time
Authors
J. Erdman, C. L. Douglas, J. W. Marr
Comparative ecology of pinyon mice and deer mice in Mesa Verde National Park, Colorado
No abstract available at this time
Authors
Charles L. Douglas
Cold-blooded vertebrate immunity to metazoa
No abstract available at this time
Authors
S. F. Snieszko
Tadpole edema virus: pathogenesis and growth studies and additional sites of virus infected bullfrog tadpoles
No abstract available at this time
Authors
K. Wolf, G. L. Bullock, C.E. Dunbar, M. C. Quimby
The black footed ferret in South Dakota
No abstract available.
Authors
F. Robert Henderson, Paul F. Springer, Richard Adrian
Safety operation and maintenance of the hurricane aircat boat with particular reference to night capture of birds
No abstract available.
Authors
L.M. Cowardin