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The effect of variation of some physical and chemical factors on the rate of growth of Botyrococcus braunii (Chlorophyta, Chlorococcales)

Creator:: Julian, Larry L.
Abstract:: The culture of the green alga Botryococcus braunii Kutz. obtained for use in this study was contaminated with bacteria and fungi. Algal colonies from this culture sonicated, rinsed and treated with penicillin (500 μg/ml), gentamicin sulfate (50 μg/ml) and amphotericin B (5 μg/ml) were found to be axenic when incubated...
Resource Type:: Masters Thesis
Full Text:: variation of H+ - ion concentrations ranging from pH 5.5 to 9.0. At a pH above or below this range there

Development, reproductive morphology, and cytology of Halosaccion glandiforme (Gmelin) Ruprecht (Rhodophyceae, Palmariales)

Creator:: Mitman, Grant Gregory
Abstract:: Halosaccion glandiforme, a member of the family Palmariaceae, is a common macrophyte found in the high to middle intertidal zones of the north temperate Pacific Ocean. Plants were grown in culture from spores and the lift history was critically examined by the use of scanning EM and light microscopy. H....
Resource Type:: Masters Thesis
Full Text:: and the lift history was critically examined by the use of scanning EM and light microscopy. H

Responses of algal populations to parasitism by Aphelidium chlorococcarum and chytrids in an Oregon sewage lagoon

Creator:: Woods, Wendy W.
Abstract:: The abundance of algal species and their parasites was monitored weekly for two years in a sewage lagoon at the Corvallis Airport, Oregon. During the cooler months, Euglena species were dominant followed by a Chlamydomonas assemblage in the spring and a predominantly Scenedesmus assemblage in the summer and fall. Parasites...
Resource Type:: Dissertation
Full Text:: , N spray site 1 influent station chlorination tank Pond I Pond H I N. spray site 2 N I0

Effect of nutrient enrichment on marine benthic diatoms in Yaquina Bay, Oregon

Creator:: Cardon, Nanette Clark
Abstract:: Sediment was fertilized with f/2 algal growth medium in situ and in the laboratory daily for one week. Sampling strategy incorporated two intertidal heights and two sites. Experiments were done in August and January. No significant changes in chlorophyll a or diatom community structure were observed after ten days of...
Resource Type:: Masters Thesis
Full Text:: also tested by analysis of variance. The Information measure H" (Shannon and Weaver, 1949), was used

Physiological ecology and structure of benthic communities in a woodland stream

Creator:: Reese, Weldon Harold
Abstract:: This thesis reports a portion of a general ecological study of a stream under conditions of controlled flow and low levels of organic enrichment. It is concerned with the effects of experimental variations of light intensity and concentration of soluble organic enrichment imposed on seasonal variations of temperature and total...
Resource Type:: Dissertation
Full Text:: preparation of this thesis is greatly appreciated. Thanks are also due Dr. F. H. Smith for his

Development, reproductive morphology, and cytology of Pelvetiopsis limitata (Setchell) Gardner (Phaeophyta, Fucales)

Creator:: Henry, Eric Charles
Abstract:: Pelvetiopsis limitata (Setchell) Gardner (Phaeophyta, Fucales), collected on the central Oregon coast, was studied by electron microscopy, and by light microscopy using methacrylate embedding and toluidine blue, acid fuchsin, PAS and anilin blue staining. The sperm of both P. limitata and Pelvetia fastigiata (J. Agardh) DeToni (from northern California) are...
Resource Type:: Masters Thesis
Full Text:: tubes for 6- 24 h. The embryos resulting from the gametes thus shed were cultured in micropore

The humic water of Klamath Marsh and its effect on the growth of Anabaena cyclindrica Lemm. in culture

Creator:: Peek, Chester Allen
Resource Type:: Dissertation
Full Text:: The writer wishes to express his appreciation to Dr. H, K. Phinney who provided most of the

Primary productivity and community structure of an estuarine impoundment

Creator:: Lyford, John Higgins
Abstract:: An impounded estuary was employed to study primary productivity, community respiration, and community structure as they related to seasonal and temporal succession, salinity, and water temperature. Plankton metabolism was studied by means of the light-and dark-bottle technique. Benthic community metabolism was determined by using the "diurnal oxygen curve" method. Four...
Resource Type:: Dissertation
Full Text:: this thesis are particularly acknowledged. I wish to express my appreciation also to Dr. Frank H

Effect of kraft mill effluent on structure and function of periphyton communities

Creator:: Williams, Harvey Dean
Abstract:: Raw and biologically stabilized Kraft mill effluents were introduced into laboratory artificial streams at a ratio of 15 ml per liter of water over a two year period. Effluent from the stabilization pond of a second mill was introduced at concentrations of from 5 to 40 ml per liter of...
Resource Type:: Dissertation

The phytoplankton and limnological characteristics of Lago Rupanco, Osorno, Chile

Creator:: Donoso, Teresa G.
Abstract:: Lago Rupanco is located in the central plain of Chile (Borgel, 1964) at 40° 50' S; 72° 30' W. It lies at 117 m above sea level, and corresponds to type 28c of Hutchinson's (1967) classification. Lago Rupanco is a warm, monomictic lake, with winter circulation and summer stratification. Physical,...
Resource Type:: Masters Thesis
Full Text:: go to Dr. R. Tubb for his assistance in the preparation of this thesis and to Dr. H. Horton for

ScholarsArchive@OSU

The effect of variation of some physical and chemical factors on the rate of growth of Botyrococcus braunii (Chlorophyta, Chlorococcales)

Development, reproductive morphology, and cytology of Halosaccion glandiforme (Gmelin) Ruprecht (Rhodophyceae, Palmariales)

Responses of algal populations to parasitism by Aphelidium chlorococcarum and chytrids in an Oregon sewage lagoon

Effect of nutrient enrichment on marine benthic diatoms in Yaquina Bay, Oregon

Physiological ecology and structure of benthic communities in a woodland stream

Development, reproductive morphology, and cytology of Pelvetiopsis limitata (Setchell) Gardner (Phaeophyta, Fucales)

The humic water of Klamath Marsh and its effect on the growth of Anabaena cyclindrica Lemm. in culture

Primary productivity and community structure of an estuarine impoundment

Effect of kraft mill effluent on structure and function of periphyton communities

The phytoplankton and limnological characteristics of Lago Rupanco, Osorno, Chile

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