Miriam Steinitz-Kannan, Regents Professor   -  email: kannan@nku.edu   SC 147 (Office) or SC 161 (Research Lab)

 

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Ohio River Ecology - see also Algae(ORSANCO)

- Algae are the primary producers in the Ohio River and the algal communities respond rapidly to changes in the water quality and the presence of grazers like zebra mussels.

-  We attempt to characterize and study the Ohio River Basin's complex biotic, and abiotic interactions.  This research is a collaborative effort between various universities and colleges in what is called "Ohio River Run" ---see below.        

Ohio River Run (>click to learn more about it)

  • Ohio River Run has been conducted in early August every year since its beginning in 2001 and plan to continue on into 2010.
     
  • The Collaborative effort is between participating colleges and Universities include:

University of Cincinnati logo.

University of Cincinnati [Dr. Michael C. Miller and Diane McCubbin] - monitored nutrient chemistry, cations and heavy metals, and algal biomass.
NKU Logo and Link to NKU Home Page Northern Kentucky University [Dr. Miriam Steinitz- Kannan and her students] examined the diatoms and other algal species.
Thomas More College [Dr. John Hageman, Joey Van Skaik, and several other students] monitored zebra mussel veligers, zooplankton in net hauls and age structure of zebra mussels on shoreline rocks.
Marshall University Logo Marshall University [Dr. Charles Somerville, Lisa Smith and other students] monitored density of culturable bacteria and Escherichia coli, and the proportion of bacteria resistant to one or more antibiotics (Tetracycline, Ciprio, Streptomycin) as indices of land/water use.
Murray State University
Hanover College

 The NKU Portion of the Research conducted on the Ohio River includes:

  • Obtaining data on algae collected every five miles along the entire length of the Ohio River (981 miles, starting in Pittsburg, Pennsylvania and ending in Cairo, Illinois)
     

  • Counting Algae and Diatoms from those samples
     

  • Combine the data from collaborating institutions on Chemistry, flow rates, bacterial levels.

Also a project that was created off the first Ohio River Run Expedition, into a manscript in preparation about diatoms.

Diatoms of the upper Ohio River Basin and Selected Tributaries: Atlas of Species and and their roles in river ecology. <Poster Presentation of this project>

This book contains photographs and descriptions of 233 species of diatoms belonging to 64 freshwater genera.  The diatoms were collected mostly during the summer of 2001.  In the process of identifying the taxa, the authors had to consult numerous books and research papers, most not easily available or in written in languages other than English.  Many of these taxonomic treatises are very expensive and not easily available outside a specialized diatom herbaria. As a result the need was identified for, the creation of a user friendly guide to diatoms.  This book represents the culmination of 3 years of work to create such a guide.  We designed this book so it can be used by people with little or no technical training in diatom taxonomy.  Water plant operators, undergraduate and graduate students interested in aquatic ecosystems and anyone involved with water quality enforcement should find this atlas of Ohio River diatoms useful.  In addition we hope this book will help school teachers introduce their students to the wonderful world of diatoms, when training them in the use of dichotomous keys.        

The user friendly features of the book include a key to genus illustrated with pictures of not just the taxa, but also of the specific features described in the key.   The book has also a detailed glossary of taxonomic and ecological terms.  With the description of each species we give its habitat preference and distribution. 

The purpose of this book is also to present a taxonomic study of the Upper Ohio River Bacillariophyta.  The primary goal is to create a floristic assessment of the species that occur in the basin.  Previous work on diatoms of this region was exclusive of the Ohio River, and focused primarily on the Scioto River Basin (Collins and Kalinsky, 1977).   This study can serve as a basis for water quality evaluation using diatoms.   Although all the taxa described here and their photographs are for the Ohio River basin, the book will be of use to anyone working on rivers of North America because diatoms are cosmopolitan in distribution.