Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorManny, Bruce A.-
dc.contributor.authorSchloesser, Donald W.-
dc.contributor.authorBrown, Charles (Charles L.)-
dc.contributor.authorFrench, John R. P.-
dc.description.abstractThe investigation reported herein indicated that breakwater construction and associated channel dredging activities by the US Army Corps of Engineers in western Lake Erie at the entrance to West Harbor (Ohio) had no detectable adverse impacts on the distributions or abundances of macrozoobenthos and fishes. Rather, increases were noted in the number of fish eggs and larvae and in the density and biomass of periphyton and macrozoobenthos on and near the breakwaters. The area also served as a nursery ground for 20 species of fishes both during and after construction and dredging activities. Colonization of the breakwaters by periphyton, primarily a green alga (Cladophora glomerata), diatoms (Gomphonema parvulum), and a bluegreen alga (Osaillatoria tenuis), and by macrozoobenthos, primarily worms (Oligochaeta), amphipods (Gamrnarus spp.), and midge larvae (Chironomidae), was rapid and extensive, indicating that the breakwaters provided new, favorable habitat for primary and secondary producer organisms. Marked adverse changes in water quality, especially reduced dissolved oxygen concentrations (2-5 mg/l), occurred around the entrance to West Harbor in 1983 following cessation of construction and dredging activities. These water quality changes, however, could not be ascribed with certainty to construction and dredging activities at West Harbor. Construction of additional breakwaters in the study area at that time by the State of Ohio served to confound determination of the responsible causal factors.en_US
dc.description.sponsorshipEnvironmental Impact Research Program (U.S.)en_US
dc.description.sponsorshipGreat Lakes Fishery Laboratory.-
dc.publisherEnvironmental Laboratory (U.S.)en_US
dc.publisherU.S. Army Engineer Waterways Experiment Station.en_US
dc.relation.ispartofseriesTechnical Report;EL-85-10-
dc.subjectBreakwaters--Environmental aspects.en_US
dc.subjectDredging--Environmental aspectsen_US
dc.subjectBreakwaters--Ohio--West Harboren_US
dc.subjectDredging--Ohio--West Harboren_US
dc.subjectRubble mound breakwatersen_US
dc.titleEcological effects of rubble-mound breakwater construction and channel dredging at West Harbor, Ohio (Western Lake Erie)en_US
Appears in Collections:Technical Report

Files in This Item:
File Description SizeFormat 
TR EL-85-10.pdf8.14 MBAdobe PDFThumbnail