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Effects of the insecticide dieldrin on benthic algae in laboratory streams

Creator:: Rose, Frederick Louis
Abstract:: The accumulation of dieldrin and its effects on species composition of benthic algal communities were studied in laboratory streams. Effects of dieldrin on photosynthetic and respiratory rates of the blue-green alga Phormidium retzii were determined using a Gilson Differential Respirometer. Dieldrin concentrations ranging from 0.05 to 7.0 ppb were maintained...
Resource Type:: Dissertation
Full Text:: ON BENTHIC ALGAE IN LABORATORY STREAMS Abstract approved: C. David McIntire The accumulation

Structure and productivity of marine benthic diatom communities in a laboratory model ecosystem

Creator:: Wulff, Barry Lee
Abstract:: Effects of light intensity, exposure to desiccation, reduced salinity, and thermal elevation on the functional and structural characteristics of marine benthic diatom communities were investigated in a laboratory model ecosystem and a respirometer chamber. Measurements of biomass (dry weight and ash-free dry weight) and chlorophyll a were made for each...
Resource Type:: Dissertation
Full Text:: for privacy Abstract approved: Dr. C. David McIntire Effects of light intensity, exposure to

The distribution of epiphytic diatoms in Yaquina Estuary, Oregon

Creator:: Main, Stephen Paul
Abstract:: Epiphytic diatom assemblages in the intertidal zone of Yaquina Bay and estuary were obtained from the following host macrophytes: Zostera marina, Fucus evanescens, and species of Enteromorpha, Polysiphonia, and Ulva. Samples were collected in September 1970 and in January and May 1971 from seven stations approximately evenly spaced between the...
Resource Type:: Dissertation
Full Text:: sincere appreciation to Dr. C. David McIntire, my major professor, for the opportunity to make this study

Successional changes associated with benthic assemblages in experimental streams

Creator:: Busch, David E.
Abstract:: Experimental streams constructed by the Weyerhaeuser Company, Tacoma, Washington, at Kalama Springs, Washington, were used to observe successional changes in the benthos. Community changes were observed relative to experimental manipulations of light intensity and nitrate concentration in two experiments. The development of benthic assemblages was followed for 150 days after...
Resource Type:: Masters Thesis
Full Text:: . David McIntire Experimental streams constructed by the Weyerhaeuser Company, Tacoma, Washington, at

Grazer-periphyton interactions in laboratory streams

Creator:: Sumner, William T.
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Redacted for Privacy C. David McIntire The effects of grazing, light intensity, and

Effects of current velocity, irradiance, and herbivory on algal assemblages in laboratory streams

Creator:: Steinman, Alan D.
Abstract:: Effects of current velocity, irradiance, and grazing on the biomass, taxonomic structure, physiognomy, and chemical composition of lotic algal assemblages were investigated. Four experiments, lasting 32 to 75 days, were conducted in laboratory streams to determine how these factors affect algal assemblages singly, and in concert with each other. Regardless...
Resource Type:: Dissertation
Full Text:: consciousness. CONTRIBUTION OF AUTHORS C. David McIntire, R. R. Lowry, Stan Gregory, Gary Lamberti, and

Effects of substrate relief, light intensity and herbivory on the distribution and abundance of periphyton in laboratory streams

Creator:: DeNicola, Dean M.
Resource Type:: Dissertation
Full Text:: succession in this study. 154 CONTRIBUTION OF AUTHORS C. David McIntire assisted with the experimental

Effects of grazing and nitrogen enrichment on the taxonomic structure of periphyton assemblages in lotic ecosystems

Creator:: Lundberg, Chris H.
Resource Type:: Masters Thesis
Full Text:: in Lotic Ecosystems. Abstract approved: C. David McIntire The taxonomic composition of benthic

The distribution of planktonic diatoms in Yaquina Estuary, Oregon

Creator:: Karentz, Deneb
Resource Type:: Masters Thesis
Full Text:: IN YAQUINA ESTUARY, OREGON Abstract approved: C. David McIntire Plankton samples were obtained

The distribution of intertidal diatoms associated with the sediments of Yaquina Estuary, Oregon

Creator:: Amspoker, Michael C.
Abstract:: Sediment samples were collected from eight sampling sites along the Yaquina Estuary, Oregon from Yaquina Bay to Elk City near the head of the estuary. Samples were collected in November 1973, February 1974, May 1974 and August 1974 from two or three intertidal levels depending on the magnitude of the...
Resource Type:: Dissertation
Full Text:: : C. David Mclntire Sediment samples were collected from eight sampling sites along the Yaquina

ScholarsArchive@OSU

Effects of the insecticide dieldrin on benthic algae in laboratory streams

Structure and productivity of marine benthic diatom communities in a laboratory model ecosystem

The distribution of epiphytic diatoms in Yaquina Estuary, Oregon

Successional changes associated with benthic assemblages in experimental streams

Grazer-periphyton interactions in laboratory streams

Effects of current velocity, irradiance, and herbivory on algal assemblages in laboratory streams

Effects of substrate relief, light intensity and herbivory on the distribution and abundance of periphyton in laboratory streams

Effects of grazing and nitrogen enrichment on the taxonomic structure of periphyton assemblages in lotic ecosystems

The distribution of planktonic diatoms in Yaquina Estuary, Oregon

The distribution of intertidal diatoms associated with the sediments of Yaquina Estuary, Oregon

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