Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 90 for “"Macroalgae"”.
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Bioethanol Production from Macroalgae
Seaweed biomass has been identified as a potential fermentation substrate for third generation biofuel processes due to its high carbohydrate content and its potential for mass cultivation without competing for agricultural land, fresh water and fertilisers. This thesis aimed to develop and advance …
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Biomethane production from macroalgae
Irish brown seaweeds have been identified as a potential bio-resource with potentially high specific methane yields. Anaerobic digestion is deemed the most feasible technology due to its commercial viability for handling such wet feedstock. However, the biomethane potential of seaweed is highly …
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Modeling macroalgae growth to optimize biomass.
… was amended to include the growth kinetics of macroalgae (seaweed) in the water-quality and hydrodynamic calculations. While EFDC has historically simulated macroalgae grown only on the sediment bed, this restriction was lifted to facilitate simulation of kelp farms where the macroalgae …
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Allelopathy of marine macroalgae against microbial epibiosis
Marine macroalgae are often devoid of micro- and macro-colonizers, suggesting some sort of host-derived antifouling defense. Previous studies mainly focused on tissue extracts of entire algae against few bacterial isolates, thereby not only neglecting ecologically relevant bacteria but also natural …
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Transcriptomics-Guided Biodiscovery of Peroxidases from Macroalgae
… cost-efficient recombinant production. Marine macroalgae, due to their phylogenetic diversity and ecological adaptations, represent a promising and largely untapped source of novel biocatalysts. The aim of this work was the transcriptomics-guided identification and characterization of novel …
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Production of bioplastic precursors (polyhydroxyalkanoates) from macroalgae
… there has been increasing interest in the use of macroalgae to obtain high value-added products through biotechnological processes. This natural biomass has many advantages, such as the fact that they do not need land or fresh water to be cultivated. Moreover, they are not energy crops, so they do …
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Development of biomaterials from sustainably produced macroalgae feedstocks
… in rural areas of New Zealand. Freshwater macroalgae ponds may offer a cost-effective alternative for wastewater treatment in these areas. These ponds produce significant amounts of residual macroalgae biomass as a by-product of the bioremediation process, which is nutrient-rich and …
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Predicting the impact of future climate on ecologically important macroalgae
Macroalgae play an important role in coastal reef systems and are often referred to as ecosystem engineers. They serve as primary producers, supporting a diverse range of organisms, and are a sink for atmospheric CO2. Water acidification and ocean warming caused by anthropogenic activities are …
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Measuring and modelling estuarine macroalgae blooms and water column nutrients
This thesis examines the dynamics of estuarine macroalgae blooms of the genus Ulva and the environmental factors controlling them, using process-based mathematical models as well as observation data from Tauranga Harbour (North Island, New Zealand). Based on long-term monitoring datasets of water …
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Valorization of industrial solid residue from macroalgae by emerging technologies
Uno de los principales problemas que afronta la sociedad actual es la acumulación de residuos, consecuencia de una creciente población y una mayor calidad de vida. Sin embargo, el concepto de biorrefinería, donde los residuos son tratados como nuevas materias primas que puedan ser reincorporadas al …
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The effects of treated sewage effluent on three species of marine macroalgae
The early life stages of the macroalgal species Phyllospora comosa, Hormosira banksii and Macrocystis angustifolia were exposed to treatments of sewage effluent, copper, chromium and reduced salinity. Germination and mortality of P. comosa and H. banksii zygotes and embryos, and germination and …
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Microplastic adherence to common species of macroalgae found throughout Scottish coastal zones
… on primary producing marine species such as macroalgae, better known as “Seaweeds”. The present study aimed to rectify this by assessing the potential microplastic contamination (i.e., the introduction of a substance as a pollutant) acting on common species of macroalgae found throughout the …
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Long-term salinity trends in Zandvlei estuary and implications for dominant macroalgae
… fluctuations in rainfall. Historical records of macroalgae identified in the estuary were summarized and no record of the Polysiphonia sp., now dominant in the estuary, was found. Dominant macroalgae in the estuary were identified and grown under a range of salinities (0, 1, 5, 10, 20, 29 ppt). …
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The eco-physiology of macroalgae from a temperate marine embayment in southern Australia
… ecophysiology of a number of dominant species of macroalgae at a site in Port Phillip Bay (PPB), a large shallow water marine embayment located on the central southern coast of Victoria, Australia. This thesis investigated the physiological processes (i.e. photosynthesis, growth, nutrient uptake) …
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Application of Optical CT to Estimate the Mass of Macroalgae in a Tank of Water
… develops and tests a mass estimation system for macroalgae using optical computed tomography. The system consists of a table with a fixed camera and backlighting, which rotates around a container of macroalgae to collect images from various points. The images capture the translucency along …
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Effects of drift macroalgae on sediment nitrogen cycling in Thalassia testudinum beds of St. Joseph Bay, FL
… communities including increasing and prolonging macroalgae blooms. In some contexts, macroalgae may play a key role in N cycling pathways because they can alter sediment chemistry. Previous research has associated drift macroalgae blooms with elevated dissolved inorganic N concentrations in …
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Kelp forests in False Bay: urchins vs. macroalgae in South Africa's south-west coast biogeographical transition zone
… the western side of False Bay, with a focus on macroalgae and urchins, (2) identifies a threshold in urchin density above which algal abundance declines and (3) seeks to identify relationships between attached and drift algal abundance. Twenty replicate quadrats were sampled in six kelp forests …
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