Water clarity trends in the Indiana waters of Lake Michigan from 1970-1972 and 1981-1994 : [an honors thesis (HONRS 499)]

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dc.contributor.advisor McComish, Thomas S. (Thomas Sherman), 1938- en_US
dc.contributor.author Clem, Hope R. en_US
dc.date.accessioned 2011-06-06T18:35:59Z
dc.date.available 2011-06-06T18:35:59Z
dc.date.created 1996 en_US
dc.date.issued 1996
dc.identifier.other A-177 en_US
dc.identifier.uri http://cardinalscholar.bsu.edu/handle/handle/189843
dc.description.abstract The amount of organic and the water column determines water clarity. There has been a greater interest in water clarity due to the invasion of the exotic zebra mussel (Dreissena Dolvmorpha) in the Great Lakes. This study used Secchi disk depths collected from 1970-1972 and 1981-1994 in the Indiana waters of Lake Michigan in an attempt to determine if any water clarity trends occurred which may have been attributable to the zebra mussel. The data suggests little change in water clarity between pre-zebra mussel (1970-1972 and 1981-1989) and post-zebra mussel (1990-1994) years has occurred at the four near-shore collecting sites, but interpretations of data was difficult due to variability. In fact, average Secchi disk readings in recent years (1990-1993), while variable, seemed to indicate a decline. However, the post-zebra mussel dates in 1994 at 10m, 15m, and 18m depths had the highest Secchi disk depth of visibility recorded for the study areas which may indicate the beginning of a new trend of improved depth of visibility. Additional research will be needed to determine if the 1994 improvement continues.
dc.description.sponsorship Honors College
dc.format.extent 60 leaves : ill. ; 29 cm. en_US
dc.source Virtual Press en_US
dc.subject.lcsh Natural resources. en_US
dc.title Water clarity trends in the Indiana waters of Lake Michigan from 1970-1972 and 1981-1994 : [an honors thesis (HONRS 499)] en_US
dc.type Undergraduate senior honors thesis.
dc.description.notes "A thesis for departmental honors in biology."
dc.description.degree Thesis (B.?.)
dc.identifier.cardcat-url http://liblink.bsu.edu/catkey/1244364 en_US

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  • Undergraduate Honors Theses [5928]
    Honors theses submitted to the Honors College by Ball State University undergraduate students in partial fulfillment of degree requirements.

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