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 13 of 13 for “"Harmful algae"”.
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Effects of hydrothermal liquefaction on algal toxins from harmful algae blooms
The formation of harmful algae blooms (HABs) in natural waters is an intensifying issue throughout the world and poses risks to the environment due in part to the toxins they release. A promising mitigation technique is to physically collect the HABs from the environment and convert them into …
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Harmful algae, algal toxin, taste and odor control and mitigation in public water system
<p>“Recent years, harmful algal blooms occurrence has increased quickly in the surface water worldwide, which has become a concern for drinking water plants due to the ability of toxic algae (cyanobacteria) to produce cyanotoxins including microcystins (MCs), mainly MC-LR, cylindrospermopsin (CYN), …
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Investigation of the nearshore, episodic poleward current in the southern Benguela : a numerical modelling approach
… result in other outcomes such as hypoxia and harmful algal blooms (HAB's) which impact on the habitat suitability character of the system. A nearshore, episodic poleward current has been observed in this region, and it is believed that this current plays an important role in the incidence of …
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Ecotoxicology of marine biotoxins in bivalve shellfish
A small proportion of harmful algae produce toxins which are harmful to human health. Strict monitoring programmes are in place within Ireland and the EU to effectively manage risk to human consumers of shellfish species that have accumulated marine biotoxins in their tissues. However, little is …
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Investigation of the genotoxic potential of the marine biotoxins okadaic acid and azaspiracids
… okadaic acid (OA) and azaspiracids (AZAs). Harmful algae blooms (HABs) are an increasing global problem with implications for the ecosystem, economy and human health. Most data available on human intoxication are based on acute toxicity. To date, limited data has been published on possible …
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Hydrothermal liquefaction of wild-harvested cyanobacterial bloom from hypereutrophic Lake Tainter, Wisconsin
This study demonstrates the potential of Harmful Algae Blooms (HABs) as a feedstock for generating biofuels hydrothermal liquefaction (HTL) and asserts that HTL is a uniquely practical technology for use of this biohazardous material. Using a wild-harvested cyanobacteria HAB from Lake Tainter, …
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Assessing the impact of domoic acid exposure on the zebrafish (Danio rerio) brain across life stages
Domoic acid (DA) is a neurotoxin produced by diatoms in genus Pseudo-nitzschia. DA accumulates in seafood and can affect the health of humans and wildlife. DA is a structural analog of glutamate - an excitatory neurotransmitter - that activates ionotropic glutamate receptors leading to …
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Stochastic modeling of Karlotoxin's influence on prey
… major.It is associated with fish kills due to harmful algae blooms by releasing a compound called Karlotoxin. This toxin is known to affect their prey's bio-locomotion by stunning them and slowing them down. In this dissertation, we investigate whether the toxin plays a crucial role in …
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Harvest-Time Optimal Path Planning in Dynamic Flows
… paths to the highly relevant issue of collecting harmful algae blooms. Our final case considers an application to next generation offshore aquaculture technologies. In particular, we consider in this case path planning of an offshore moving fish farm that accounts for optimizing fish growth. …
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Metagenomic amplicon sequencing as a rapid and high-throughput tool for aquatic biodiversity surveys
… I examine the introduction and distribution of harmful algal taxa in high-risk marine locations across the entire continent of Australia, characterising a variety of harmful algal species associated with international and domestic shipping activities to potentially manage and mitigate the spread …
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Environmental drivers and advective transport of harmful phytoplankton in North West European shelf seas
Harmful phytoplankton occur naturally in British waters. However, little is known about the environmental drivers that lead to the formation and advection of harmful algae blooms (HABs). To minimise adverse effects of HABs it is necessary to improve our understanding of links between advection, …
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Development and validation of PCR-RFLP assay for identification of Gambierdiscus species in the Greater Caribbean region
The genus Gambierdiscus is a recognized group of marine epiphytic-benthic dinoflagellates that produce the toxins that cause Ciguatera Fish Poisoning (CFP). To date, 12 species and 6 ribotypes of Gambierdiscus have been identified, and multiple species commonly co-occur within a single site or …
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Spatial Variability and Seasonal Patterns of Co-Occurrence between two Marine Biotoxins in the Puget Sound and Implications for Public Health Management
Shellfish are of utmost cultural, recreational, and commercial importance in Washington State. However, the accumulation of marine algal biotoxins in shellfish can pose severe health risks to shellfish consumers. While Paralytic Shellfish Toxins (PSTs) have been well monitored in the state for …