Revill, Donald L.

This research was designed primarily to determine whether and to what extent several species of Dipteria (true flies) carry viable dissemules of algae and or Protozoa "in-flight."

Mann, James Edward

The purpose of this investigation was to characterize the population dynamics of the benthos of selected pristine thermal springs.

Beddow, David G.

This research is concerned specifically with the growth of two selected algae found surviving in chlorinated water in outdoor swimming pools. Unialgal cultures were used to determine the free chlorine residuals that these algae were able to tolerate.

Harmon, John C.

The purpose of this investigation was to isolate and grow algae common to the southwest in unialgal culture; to either sustain or grow one of the principal bloom-causing organisms, with emphasis on Microcystis aeruginosa; to isolate and culture actinomycetes from the same waters from which the algae were obtained; and to inoculate these algae with actinomycetes and determine their effects through development and deterioration.

abstract: There has been considerable advancement in the algae research field to move algae production for biofuels and bio-products forward to become commercially viable. However, there is one key element that humans cannot control, the natural externalities that impact production. An algae cultivation system is similar to agricultural crop farming practices. Algae are grown on an area of land for a certain time period with the aim of harvesting the biomass produced. One of the advantages of us...

abstract: An issue with the utilization of swimming pools is that pumps are operated an excessive number of hours to keep the pool free of debris and algae. Case in point, according to the pool industry, a pump should operate one hour for every ten degrees of ambient temperature. A dynamic model and a control strategy have been developed using Matlab/Simulink that uses environmental conditions together with chemicals that hinder or aid algae growth in order to determine algae population. This mo...

Saravanakumar, Denise

Summary in English. / In 1993, the World Health Organisation declared tuberculosis a global health emergency. Currently, efforts are underway to improve the way the disease is managed and to find more effective treatments that would combat the problem of long treatment periods, toxicity, drug-resistance and HIV-coinfection. In the process, natural product chemistry continues to play an important role in the search for new compounds to treat tuberculosis. Terrestrial plants have been investigated...

Cassis, David

During the summer of 2001, a mass mortality of early juvenile Pacific oysters, Crassostrea gigas Gmelin, was observed at a farm site in Jervis Inlet, British Columbia. During this episode, several toxin producing and potentially harmful algae were detected within the phytoplankton community, with a bloom of Protoceratium reticulatum (Claparede et Lachmann) Buetschli preceding and including the mortalities. Searching for a cause we examined experimentally the rapid response behaviour of juve...

Tanner, Christopher Eugene

As a result of herbarium, field and culture studies, six species of Ulya Linnaeus, U. califomica Wille, U. fasciata Delile, U. fenestrata Postels et Ruprecht, U. rigida C. Agardh, U. stenophylla Setchell et Gardner and U. taeniata (Setchell) Setchell et Gardner, are recognized for the northeast Pacific (west coast of North America). The position of a seventh species, U. conglobata Kjellman, remains unclear. Six taxa previously recognized for the northeast Pacific are reduced to synonyms of othe...

Palmer, Mildred Ruth

The chlorophyll and carotenoid pigments obtained from a number of algae were studied in gross acetone extracts. A method proposed by Richards and Thompson was used to calculate the relative proportions of chlorophylls a, b, and c, astacin and non-astacin carotenoids present. Complete absorption spectra from 350 mμ to 700 mμ were obtained for several algae, chiefly those belonging to the Chlorophyta. It was found that the presence of chlorophyll b could be detected as a small irregularity in the ...

Murphy, Thomas P.D.

The primary objective of this research was to determine if changes in iron availability influence the periodicity of blue-green algal growth. A secondary goal was to resolve how iron availability was related to events such as calcite (calcium carbonate) precipitation and sediment nutrient release. The biogeochemical regulation of blue-green algal succession was studied in three eutrophic hardwater lakes located upon the Thompson Plateau in south-central British Columbia. The experimental approa...

Wang, Ming

<p>Enhanced Oil Recovery (EOR) is regarded as new and effective technology to produce oil and gas in recent years. EOR technology has been widely used as a method of enhancing remaining oil to several oil fields? production. This experiment provides detailed analysis and approves the effectiveness of algae polymer. It also gives some suggestions, which were based on information obtained from other researches for future test.

Basic, Dunja

Benthic environments in streams are areas of high biological activity where primary producers and consumers interact with each other and the environment. Various factors such as light, nutrient availability and temperature affect algal biomass accumulation however disturbance factors and grazing lead to biomass losses as well as changes in the species composition and densities of algae. There are little, if any, studies done on the effects of grazers on benthic algae in South African rivers and ...

Robertson-Andersson, Deborah

Five years have passed since the Two Oceans Aquarium, Cape Town, opened its doors for the first time in November 1995. Since then, a seaweed community has established itself in the Kelp tank. The seaweeds were brought in as either epiphytes on mature macro algae or as epiphytes on boulders that were placed on the floor of the tank. Thus, the community in the tank can be assumed to have established itself naturally. This study looked at the extent of the species diversity, zonation patterns in th...

Van der Merwe, Elizabeth

Philosophiae Doctor - PhD / The aim of this study was to document the intertidal and shallow subtidal species of non-geniculate coralline red algae from the South Africa south coast. The main emphasis of the study are encompassed in four research chapters and one concluding chapter focusing on: 1) the documentation of the non-geniculate coralline red algae occurring along the South Africa south coast; 2) revisiting the Leptophytum-Phymatolithon complex in order to resolve the taxonomic status o...

Ko, Chi-mei

Two species of cyanobacteria (Fischeralla sp. 29161 and Phormidium autumnale) and one species of green algae (Fritschiella tuberosa) were found to promote survival of Legionella pneumophila in mineral salts medium cocultures. During the early stage of incubation Fischerella sp. supported growth of Legionella pneumophila even though the bacteria would not grow in the algae-free basal medium.

Pothula, Ramanarayana Reddy

<p> To reduce formaldehyde emissions and prevent deforestation, particle boards prepared from sodium hydroxide modified algae and sugarcane bagasse were used to study the effect of process parameters such as fine-filler ratio, algae-filler ratio, ambient storage times, and sodium hydroxide concentration on mechanical properties. P-test was conducted to test for significance of parameters on flexural modulus and flexural strength. Results showed that algae-filler ratio and ambient storage times h...

Mambo, Mutsa Prudence

Integrated algae pond systems are a derivation of the Oswald designed advanced integrated wastewater ponding system, and combine the use of anaerobic and aerobic bioprocesses to effect wastewater treatment. Integrated algae pond system technology was introduced to South Africa in 1996 and a pilot plant was designed and commissioned at the Belmont Valley wastewater treatment works in Grahamstown. Previous studies showed that this system delivered a final effluent superior to most pond systems dep...

Mlambo, Patricia Zanele

High rate algae oxidation ponds (HRAOP) for domestic wastewater treatment generate biosolids that are predominantly microalgae. Consequently, HRAOP biosolids are enriched with minerals, amino acids, nutrients and possibly contain plant growth regulator (PGR)-like substances, which makes HRAOP biosolids attractive as fertiliser or PGR. This study investigated HRAOP biosolids as a starting material for a natural, cost-effective and readily-available eco-friendly organic fertiliser and/or PGRs. Var...

Foy, Jacob Stephen

Installations similar to Louisiana sugar mills have been proposed as potential biorefineries for sugarcane, energy cane, and sweet sorghum. The nutrient-rich wastewater generated from the milling process can be used as an algal growth medium. Simultaneously, algae can serve as a water treatment strategy to deplete these effluents of excess nitrogen, phosphorus, and organic carbon. In this research the effluents of a sugar mill were characterized for water quality and nutrient characteristics; th...

Rahman, Md. Azizur.

Long-term freshwater algae data from a number of reservoir locations and watershed outlets in Bull Run, Oregon are classified at taxonomic levels and analyzed for spatial-temporal dynamics of the concentration and diversity. The analysis is further extended to: (1) study associated relationships between and among algal, water chemistry, and hydrologic variables, and (2) multiple regression models predicting current and next month's algal concentration and diversity. Over fifty-thousand records c...

Beaugeard, Marie.

The research presented in this thesis entailed an investigation of heavy metal uptake by Palmaria palmata, a red marine alga. The alga was dry and organically certified. The heavy metals of interest were those commonly found in the wastewaters of the printed wiring board industry, namely Cu2+Pb2+, Cd2+, Zn 2+ and Ni2+. The ultimate objective of the work was to determine whether or not the factors expected to influence the metal uptake to the greatest extent could be optimized within functional r...

Parkes, Alice

Filter-feeding black fly larvae in lake outlet streams convert suspended bacteria and algae into benthic biomass, available to fish. Positive correlations between larval abundance and both bacterioplankton and phytoplankton were significant at the p < 0.10 level among 5 outlet streams of varying trophic status in the Eastern Townships of Quebec, and either food type alone explained &sim;28% of the variance in larval abundance among streams (Chapter 1), suggesting bacterioplankton and phytoplankt...

Bozzo, Gale Giancarlo

No description available.

Caron, Francois. Kramer, J.R.

Thesis (Ph.D.)--McMaster University (Canada), 1990. / Source: Dissertation Abstracts International, Volume: 53-01, Section: B, page: 0160. Supervisor: J. R. Kramer.

Archbold, Brad.

Thesis (M.E.S.)--The Evergreen State College, 2007. / Title from title screen (viewed 1/24/2008). Includes bibliographical references.

Kangwe, Juma W.,

Diss. (sammanfattning) Stockholm : Univ., 2006. / Härtill 4 uppsatser.

Davis, Michael W.

Thesis (Ph. D.)--Oregon State University, 1982. / Typescript (photocopy). Includes bibliographical references (leaves 119-128). Also available on the World Wide Web.

Rao, Qinzhi,

Thesis--University of Michigan, 1935. / Descriptive letterpress on rectos facing the plates. "Papers from the Department of Botany and Herbarium of the University of Michigan, no 541." "Reprinted from Sinensia, vol. 6, no. 5, October, 1935." Includes bibliographical references (p. 618-620).

Ottewitte, E. H.

Thesis (M.S.)--University of Michigan, 1963.

Misner, Ian.

Thesis (M.S.)--University of North Carolina at Wilmington, 2004. / Includes bibliographical references (leaves : [58]-64).

Martin, Derek.

Thesis (Ph. D.)--Open University. BLDSC no. DXN028414.

Swenson, Nathan A.

Thesis (M.S.)--Humboldt State University, 2009. / Includes bibliographical references (leaves 55-57). Also available via Humboldt Digital Scholar.

高橋, 浩, Takahashi, Hiroshi A., 和田, 秀樹, Wada, Hideki, 中村, 俊夫, Nakamura, Toshio, 三浦, 英樹, Miura, Hideki

第11回名古屋大学タンデトロン加速器質量分析計シンポジウム(平成10 (1998)年度)報告 名古屋大学タンデトロン加速器質量分析計第1号機の研究実績と1号機,2号磯の利用計画

Johnson, Lynn I.

Aerobic heterotrophic bacteria associated with oyster larvae feed algae Isochrysis galbana, Monochrysis lutheri and Pseudoisochrysis paradoxa were isolated and enumerated. The bacterial numbers ranged from 7.8x10³ to 3.9x10⁶ CFU per ml. The bacteria associated with Pseudoisochrysis sp. were identified and the majority of isolates belonged to genera Leucothrix (51%). Also present were members of Pseudomonas III sp. (19.1%), atypical Moraxella sp. (16.8%), Moraxella sp. (7.2%) and Flavobacterium s...

Gogichaishvili, Ilia

High productivity rates, usage of nonproductive land, renewability and recovery of waste nutrients and potential for CO2 emission reduction represent some of the advantages that selected algae species might have over competing products. Many research studies have investigated potential usage of algae for different purposes, such as cosmetics or aquaculture; however most of the research studies have focused on the feasibility of algae as a source of second generation biodiesel and feed meal. Beca...

Basu, Alex

The modernized world is over-consuming low-cost energy sources that strongly contributes to pollution and environmental stress. As a consequence, the interest for environmentally friendly alternatives has increased immensely. One such alternative is the use of solar energy and water as a raw material to produce biohydrogen through the process of photosynthetic water splitting. In this work, the relation between H2-production and photosynthesis in the green algae Chlamydomonas reinhardtii was stu...

Gutierrez, Cesar Carlos

Supplies of nonrenewable fossil fuels are becoming more limited even as they continue to contribute to pollution and economic concerns. Alternative sources of energy must be developed that help minimize these problems. One potential source of energy is the production of biofuels from algae. Here we evaluate algae found in South Texas brackish water ponds used for aquaculture of fish as a possible source of biofuels. In particular, we examine the effects of salinity and pH on the growth and lipid...

Ozkan, Altan

Algae are photosynthetic microorganisms that convert carbon dioxide and sunlight into biomass that can be used for biofuel production. Although they are usually cultivated in suspension, these microorganisms are capable of forming productive biofilms over substrata given the right conditions. This dissertation focuses on algal biofilms and their application in biofuel feedstock production. In particular it reports the construction and performance of an algae biofilm photobioreactor, the physico-...

Jones, Jessica Naomi

Biofuel is a renewable and sustainable energy source with near-neutral carbon footprint. Algae are an ideal feedstock for biofuel production because they reproduce quickly and have high oil. Algae can be cultivated in non-arable land, and would not impact the food supply. Unfortunately, processing algae into biofuel is more expensive than land crops due to the large volumes of dilute algal suspension that must be harvested and concentrated. In order to improve algae-based biofuel economics, resi...

Stork, David Anthony, davids@wgcma.vic.gov.au

Surface waters subject to algal blooms have a high rate of fouling water treatment filtration membrane. These waters typically contain high concentrations of hydrophilic organic carbon compounds such as proteins and polysaccharides. These compounds have been found to contribute greatly to membrane fouling. In this study the fouling propensity, and the components of the fouling layer, for microfiltration (MF) and ultrafiltration (UF) membranes, were characterised for samples taken from a waste...

McKenny, Claire, n/a

There has been much interest in the last decade concerning the factors that influence diversity, especially how diversity and ecosystem processes may be linked. This study was based in small, cobble streams in South East Queensland. Its aim was to determine how the diversity and composition of consumers (the grazer guild) is influenced by both the production and composition of benthic algae, at different spatial scales. It also aimed to ascertain whether this response differs among grazer sub gu...

Wong, Cathy Yat-Yee

The studies presented in this thesis explore energy transfer and relaxation in excitonic systems using two types of third-order non-linear spectroscopy, transient grating (TG) and two-dimensional photon echo (2DPE). Two major excitonic systems are studied, colloidal CdSe nanocrystals and a photosynthetic system, the light harvesting antenna protein PE545 isolated from cryptophyte algae Rhodomonas CS24. The inhomogeneous broadening present in colloidal samples has long been an obstacle to the s...

Attalah, Said

<p> The original ARID (Algae Raceway Integrated Design) raceway was an effective method to increase temperature toward the optimal growth range. However, the energy input was high and flow mixing was poor. Thus, the ARID-HV (High Velocity Algae Raceway Integrated Design) raceway was developed to reduce energy input requirements and improve flow mixing. This was accomplished by improving pumping efficiency and using a serpentine flow pattern in which the water flows through channels instead of ov...

Quamme, D. L.

The relationship between external soluble phosphorus (P) concentration and the abundance and taxonomic composition of stream insects was determined in streamside artificial troughs. The response of peak algal biomass (PB) to target P concentrations of 0, 0.5, 2.5, 5, 10, 50 ɥg P 1⁻¹ was also monitored. A log-linear function of P concentration was used to approximate PB and insect abundance. PB measured as chlorophyll a increased with P concentration linearly to 7.4 mg m⁻² at 2.5 ɥg P 11 and...

acase@tulane.edu

Vahora, Nisha

Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2010. / Cataloged from PDF version of thesis. / Includes bibliographical references (p. 47-51). / Traditional views of marine environments describe the ocean pelagic zone as a homogeneous nutrient-poor environment. Heterotrophic marine bacteria that have evolved high-energy mechanisms for swimming abilities and sensing nutrient gradients would gain no survival advantage under this model. Recent...

Sacha Sethaputra

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1981. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING. / Includes bibliographical references. / by Sacha Sethaputra. / M.S.

Lowell, Christina, Lowell, Christina

The class Cyanidiophyceae (the "cyanidia") includes three genera, the walled Cyanidium and Galdieria and the "naked" Cyandioschyzon. All of these algae are unicellular and asexual and live at high temperature and low pH. The cyanidia grow optimally at a pH of 2-3 but can tolerate a higher pH and lower their surrounding pH if it is above the optimal level. They can also tolerate high concentrations of potential toxins that are often found in their natural environments. This thesis shows that stra...

Hector, Stanton Bevan Ernest

Thesis (PhD)--Stellenbosch University, 2013. / ENGLISH ABSTRACT: Sulfated galactans (agarans and carrageenans) are accumulated in the cell wall of various red algae (Rhodophyta) species. These polysaccharides are of commercial importance in the food, pharmaceutical and biotechnology industries due to their unique physicochemical properties. Although having received significant research attention over the last 20 years, events regarding their biosynthesis have not been elucidated. Aiming for ...