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A dwarfed population of Catostomus rimiculus (Catostomidae: Pisces) in Jenny Creek, Jackson County, Oregon

Creator:: Hohler, David Berry
Abstract:: The population of Catostomus rimiculus from Jenny Creek basin is identified as a dwarfed derivative of the normally much larger C. rimiculus from the Klamath and Rogue River systems. C. rimiculus in Jenny Creek basin are separated from those in the Klamath by a series of 3-10m waterfalls resulting from...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF DAVID BERRY HOHLER for the degree

The influence of natural mortality and other life history factors on the yield to the angler of planted cutthroat trout in Munsel Lake, Oregon

Creator:: Hansen, David
Resource Type:: Masters Thesis
Full Text:: , ORG3i by flavic Laren ,'v '-r itt5 t3 ULGOi. 5LT:. UIflSIT! in paDtial 1.ilhient c the equLnar for

The influence of some environmental factors on the distribution of fishes in Upper Klamath Lake

Creator:: Vincent, David Thomas
Abstract:: The fishes of Upper Klamath Lake appeared to distribute themselves in three general groups during the summers of 1964 and 1965: (1) the chubs--unrestricted as to distribution with slight seasonal variations; (2) rainbow trout and yellow perch -- restricted to certain water conditions that exist only along the northern marsh...
Resource Type:: Masters Thesis
Full Text:: Distribution of Fishes in Upper Klamath Lake AN ABSTRACT OF THE THESIS OF DAVID THOMAS VINCENT for the M. S

A review of the deep water Liparidae from the coast of Oregon and adjacent waters

Creator:: Stein, David L.
Abstract:: Descriptions and distributions are given of 28 species of Liparidae occurring or possibly occurring below 200 m between San Francisco and northern Vancouver Island, with keys for their identifications. Nine genera are included: Careproctus, Elassodiscus, Lipariscus, Nectoliparis, Rhinoliparis, Acantholiparis, Paraliparis, and two new genera are described, Odontoliparis and Osteodiscus. Eight...
Resource Type:: Masters Thesis
Full Text:: Oregon and adjacent waters AN ABSTRACT FOR THE THESIS OF David L. Stein for the degree of Master of

A review of the Gadopsidae, with a description of a new species from Tasmania

Creator:: Parrish, Richard H.
Abstract:: The taxonomic placement of Gadopsidae is discussed and an evaluation of its osteological relationships with related families is given. Similarities to the more primitive genera of the trachinoids, notothenioids, and uranoscopoids are noted and the inclusion of Gadopsidae in the Trachinoidae is recommended. A description of the geological history of...
Resource Type:: Masters Thesis
Full Text:: Arnold Ltd. allowed me to use three figures from Sir T. W. Edgeworth David' s The Geology of the

Morphological and meristic characteristics of ten populations of blackside dace, Rhinichthys osculus nubilus (Girard ), from western Oregon

Creator:: Zirges, Malcolm H.
Abstract:: Blackside dace, Rhinichthys osculus nubilus (GIRARD), were collected from ten western Oregon streams and examined for variation among morphological and meristic characters. Several characters were observed to vary between populations studied. Number of vertebrae, number of scales in and above the lateral line, length of snout, and depth of body...
Resource Type:: Masters Thesis
Full Text:: ), but not at all for R. osculus nubilue. Variation has been noted in R. osculus by several authors

Origin and distribution of the fish fauna of the Harney Basin, Oregon

Creator:: Bisson, Peter Andre
Abstract:: A theory of the origin and distribution of fishes in the Harney Basin is presented. Blitzen River, the hydrographically and ecologically isolated creeks, and the upland tributaries of Silvies River all contain populations derived from the basin's Pleistocene connection with Malheur River of the Snake system. Colonization of many streams...
Resource Type:: Masters Thesis
Full Text:: grant from the 0.S. U. Computer Center. David Niess assisted greatly in arranging and interpreting the

The effects of the herbicides Diquat and Dichlobenil on pond invertebrates

Creator:: Wilson, Dennis Carl
Abstract:: The acute toxicity of Diquat (1:1-ethylene-2:2' dipyridylium dibromide) and Dichlobenil (2, 6-dichlorobenzonitrile) to six selected pond invertebrates was determined using the median tolerance limit estimation method. Diquat was more toxic to the amphipod, Hyalella azeteca than to the aquatic insects Callibaetis, Limnephilus, Enallagma, Libellula, and Tendipedidae. The addition of mud...
Resource Type:: Masters Thesis
Full Text:: effort. Thanks are extended to Mr. James Malick, Mr. David Stroup, Mr. Harold Kibby, Mr. Jerry Zinn

Distribution of fishes in tributaries of the lower Columbia River

Creator:: Reimers, Paul E.
Abstract:: During 1963 and 1964 collections were made in tributaries of the lower Columbia River and literature was reviewed to compile a list of fishes from that area. Based on available sources and collections in this study, a total of 28 families and 77 species are known from the lower Columbia...
Resource Type:: Masters Thesis
Full Text:: species in- cluded I7 species which are recorded frorn the lower Columbia Riv- €r, and eight other

The chronic toxicity of 2,3,7,8-tetra-chlorodibenzo-p-dioxin (TCDD) to five selected aquatic organisms

Creator:: Miller, Richard A.
Abstract:: Five species of aquatic organisms were exposed to TCDD. Lethal effects of initial exposure to coho salmon of 23.4 nanogram TCDD/gram fish wet weight (23.4 ng/g), or equivalent to 100 nanogram per liter (100 ng/l) TCDD in water, for 24 hours were irreversible; 95% mortality occurred in 60 days. Exposure...
Resource Type:: Masters Thesis
Full Text:: ? LI I: C) aD N- Iv I. C' co Th,'r. Figure 6. Electron-capture gas throtiatogram of 6.0 pl

ScholarsArchive@OSU

A dwarfed population of Catostomus rimiculus (Catostomidae: Pisces) in Jenny Creek, Jackson County, Oregon

The influence of natural mortality and other life history factors on the yield to the angler of planted cutthroat trout in Munsel Lake, Oregon

The influence of some environmental factors on the distribution of fishes in Upper Klamath Lake

A review of the deep water Liparidae from the coast of Oregon and adjacent waters

A review of the Gadopsidae, with a description of a new species from Tasmania

Morphological and meristic characteristics of ten populations of blackside dace, Rhinichthys osculus nubilus (Girard ), from western Oregon

Origin and distribution of the fish fauna of the Harney Basin, Oregon

The effects of the herbicides Diquat and Dichlobenil on pond invertebrates

Distribution of fishes in tributaries of the lower Columbia River

The chronic toxicity of 2,3,7,8-tetra-chlorodibenzo-p-dioxin (TCDD) to five selected aquatic organisms

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