Aquaculture and Fisheries Commons^™

Assessment Of Benthic Habitat Quality In Lower Green Bay, Lake Michigan With Special Regard To Potential Hexagenia Recolonization, Christopher Michael Groff

Theses and Dissertations

With environmental remediation in the Great Lakes, Hexagenia have recovered or are recovering in systems from which they were once extirpated. An active Hexagenia recovery does not appear to be taking place in lower Green Bay. This study first examines the highly fluidized nature of lower Green Bay sediment as a possible cause for their lack of recovery due to nymphs’ potential inability to construct and maintain burrows essential to the completion of their life cycles. Hexagenia bilineata nymphs collected from the Upper Mississippi River were distributed into oxygenated aquaria containing substrates from lower Green Bay or the Upper Mississippi …