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Physical Sciences and Mathematics Commons™
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Full-Text Articles in Physical Sciences and Mathematics
Microplastic Ingestion By Daphnia Magna And Its Enhancement On Algal Growth, Patrick M. Canniff, Tham C. Hoang
Microplastic Ingestion By Daphnia Magna And Its Enhancement On Algal Growth, Patrick M. Canniff, Tham C. Hoang
School of Environmental Sustainability: Faculty Publications and Other Works
The rapid increase in plastic use over the last few decades has resulted in plastic pollution in freshwater and marine ecosystems. However, more attention has been paid to plastic pollution in marine ecosystems than to freshwater ecosystems. This research determined microplastic ingestion by Daphnia magna and the potential effect of microplastics on the organism's survival and reproduction. The study also examined the potential of microplastics to enhance algal growth in support of understanding effects of microplastic ingestion on the organism. When exposed to 25, 50, and 100 mg/L fluorescent green polyethylene microbeads at size of 63–75 μm, D. …
Chronic Effects Of Lead Exposure On Topsmelt Fish (Atherinops Affinis): Influence Of Salinity, Organism Age, And Relative Sensitivity To Other Marine Fish, Erik J. Reynolds, Tham C. Hoang, D. Scott Smith, Jasim M. Chowdhury
Chronic Effects Of Lead Exposure On Topsmelt Fish (Atherinops Affinis): Influence Of Salinity, Organism Age, And Relative Sensitivity To Other Marine Fish, Erik J. Reynolds, Tham C. Hoang, D. Scott Smith, Jasim M. Chowdhury
School of Environmental Sustainability: Faculty Publications and Other Works
The aim of this study was to determine the influence of salinity and organism age on the chronic toxicity of waterborne lead (Pb) to Atherinops affinis and to compare the relative Pb sensitivity of A. affinis with other marine species. Chronic Pb exposure experiments were conducted in a water flow‐through testing system. Survival, standard length, dry weight, and tissue Pb concentration were measured and lethal concentrations (LC), effective concentrations (EC), and bioconcentration factor (BCF) were calculated. In general, increasing salinity and organism age decreased Pb toxicity. The LC50s for larval fish at 14 and 28 ppt salinity were 15.1 and …