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
Two new species of Plistophoroa (Microsporidea) from North American fish with a synopsis of Microsporidea of freshwater and euryhaline fishes
No abstract available.
Authors
R.E. Putz, G. L. Hoffman, C.E. Dunbar
Characteristics and identification of oxidative Pseudomonads isolated from diseased fish
No abstract available.
Authors
G. L. Bullock, S. F. Snieszko, C.E. Dunbar
Noteworthy records of reptiles from New Mexico
No abstract available.
Authors
J.R. Dixon, P.A. Medica
An introductory investigation of the toxicity of Larrea tridentata
No abstract available.
Authors
W. L. Halvorson
Diuron, fenuron, monuron, neburon, and TCA mixtures as aquatic herbicides in fish habitats
Abstract has not been submitted
Authors
C.R. Walker
An automatic camera device for measuring waterfowl use
A Yashica Sequelle camera was modified and equipped with a timing device so that it would take pictures automatically at 15-minute intervals. Several of these cameras were used to photograph randomly selected quadrats located in different marsh habitats. The number of birds photographed in the different areas was used as an index of waterfowl use.
Authors
L.M. Cowardin, J.E. Ashe
Regrouping of family members of the white-fronted goose (Anser albifrons) after individual release
No abstract available.
Authors
H. Miller, A. Dzubin
Age, growth, maturity, and fecundity of 'humper' lake trout, Isle Royale, Lake Superior
Humper lake trout are one of the several races or subpopulations of lake trout in Lake Superior. This study is based on 3,705 fish collected on a reef south of Isle Royale near the eastern end. The mean lengths of humper trout from commercial gill nets were smaller than those of lean lake trout. Members of age-groups VII, VIII, and IX represented 81.5 per cent of the commercial humper catch. The b
Authors
Jerold F. Rahrer
Movements of hatchery-reared lake trout in Lake Superior
The history of stocking of lake trout (Salvelinus namaycush) in the Great Lakes is reviewed. The study of movements is based on capture of 24,275 fin-clipped lake trout taken in experimental gill nets and trawls and commercial gill nets. Yearling lake trout planted from shore dispersed to 15-fath (27-m) depths in 3A? hr. Most fish remained within 2 miles (3.2 km) of the planting site 2 months, but
Authors
Richard L. Pycha, William R. Dryer, George R. King
Automatic feeder for small fish held in tanks
The Northville (Michigan) Biological Station has been a center for study of the developmental morphology of coregonid fishes. This work requires the production of numerous individual series of lake herring, lake whitefish, and several species of chubs from parent fish of positively known identity. The offspring of individual pairs or groups of fish must be held in individual tanks from the time
Authors
Leonard S. Joeris
Distribution and abundance of the polychaete, Manayunkia speciosa Leidy, in western Lake Erie
The abundance and distribution of the freshwater polychaete, Manayunkia speciosa, in 1961, are described for western Lake Erie. Previous records reveal that the species has either been generally overlooked or presently its numbers have greatly increased in the area considered.
Authors
Jarl K. Hiltunen