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Approaches To Improving Detection Of Invasive Fish Species In Western Lake Erie Through Analysis Of Monitoring Efficiencies And Metrics Of Community Distribution, Joshua Alan Southern
Approaches To Improving Detection Of Invasive Fish Species In Western Lake Erie Through Analysis Of Monitoring Efficiencies And Metrics Of Community Distribution, Joshua Alan Southern
Wayne State University Theses
Efficient monitoring programs are essential for the early detection of invasive species. The Ohio Department of Natural Resources (ODNR) monitoring program encompassing 21 years of fish survey data from western Lake Erie was evaluated using Chao biodiversity analysis to determine the efficiency and precision of collection strategies of trawl and gillnet sampling, at detecting rare or non-native species. Overall, ODNR sampling annually accounted for ~80% of extant fish species, leaving gaps in coverage where rare and invasive species may be overlooked and proliferate.Obtaining 90% efficiency would require an estimated doubling of previous sampling effort. Computer simulations calculating different proportions of …
The Movement Of Escherichia Coli And Enterococci Among Beach Sand, Lyngbya Wollei, And The Water Column: Implications For Human Health, Krystal Ann Bakkila
The Movement Of Escherichia Coli And Enterococci Among Beach Sand, Lyngbya Wollei, And The Water Column: Implications For Human Health, Krystal Ann Bakkila
Wayne State University Theses
Occurrence of the filamentous cyanobacteria Lyngbya wollei has become an increasing concern in the Great Lakes region. Prior to the early 1900's, L. wollei had been occasionally documented in the Great Lakes region, but in the last decade it has been observed with increasing frequency. In the Great Lakes L. wollei has been proliferating, fragmenting, and accumulating ashore, where it decays forming thick detrital mats harboring potentially harmful bacteria such as Escherichia coli and enterococci. While the filamentous green algae species Cladophora glomerata has been well studied in this region, very little research has been done on the cyanobacteria L. …