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Chapter 6: Explores standing crop and community composition of periphyton (algal component of biofilms) from in-lake mesocosms spiked on a regression with microplastics.
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This study, part of a larger thesis, looked at algae growing on surfaces (called periphyton) in lake-based test enclosures exposed to varying amounts of microplastics. Researchers measured how much algae grew and which species were present at different microplastic levels.
Overarching thesis objective is to evaluate fate and effects of microplastics on freshwater algae, with a focus on biofilm communities. Five data chapters (2-6 of thesis). Chapter 6: Explores standing crop and community composition of periphyton (algal component of biofilms) from in-lake mesocosms spiked on a regression with microplastics.
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Chapter 5: Evaluates standing crop measurements and metabolic responses of biofilms developed in three different mesocosm experiments each spiked on a regression with microplastics
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This study looked at biofilms, thin layers of microorganisms, grown in three separate lab tank experiments where microplastic levels were gradually increased. It measured the amount of biofilm growth and its metabolic activity in response to the different microplastic amounts. The abstract does not provide specific results of these measurements.
Microalgae colonization of different microplastic polymers in experimental mesocosms across an environmental gradient
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Microalgal colonization of five different microplastic polymer types was monitored in freshwater mesocosms across an environmental gradient, finding that polymer type, surface properties, and environmental conditions all influenced the biomass and community composition of epiplastic microalgal biofilms.
Impacts of plastic surface on the periphyton under different nutrient and temperature: A mesocosm experiment
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This mesocosm experiment investigated how microplastics affect periphyton (biofilm communities that grow on surfaces in water) under different nutrient levels and temperatures. Microplastics altered periphyton development in ways that could affect oxygen production and the feeding of organisms that graze on biofilm, with potential ripple effects throughout aquatic food webs.
Microbial biofilm formation and community structure on low-density polyethylene microparticles in lake water microcosms
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Researchers investigated biofilm formation on low-density polyethylene microparticles in lake water microcosms, finding that microplastic surfaces supported distinct and dynamic microbial communities that differed from those in the surrounding water.
Thesis Chapter 4: Measuring shading effect from floating microplastics, microplastic exposure in biofilm, and influence of MPs on biofilm in mesocosms
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This study used outdoor tank experiments (mesocosms) with added microplastics to examine freshwater biofilm communities. Researchers measured how floating microplastics blocked light, how much microplastic ended up within the biofilm, and how the biofilm's overall growth was affected.
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