State Water Resources Research Institute Program

Project ID: 2011KY172B
Title: Ordination of fish morphological characteristics to investigate intraspecific differences of largemouth bass and paddlefish due to the construction of modern navigation dams on the Ohio River, USA
Project Type: Research
Start Date: 3/01/2011
End Date: 2/29/2012
Congressional District: KY 6th
Focus Categories: Ecology, Surface Water
Keywords: trophic shifts, ordination analysis
Principal Investigator: Sluss, Tamara
Federal Funds: $ 4,060
Non-Federal Matching Funds: $ 8,120
Abstract: The objective of this research is to determine whether feeding morphology has changed within planktivorous (paddlefish) and a piscivorous (large mouth bass) fish species due to the construction of modern navigation dams on the mainstem Ohio River between Louisville, KY and Cincinnati, OH, USA. The research involves studying fish specimens in collections that span the construction of the McAlpine and Markland dams (in 1961 and 1964 respectively) through the analysis of digital imagery and ordination. Images and measurements of specimens from ORSANCO and Ohio State University will be collected and analyzed. We will determine whether there are morphological differences in fish species before and after modern dams were placed in the mainstem Ohio River using either Principal Coordinate Analysis (PCA) or Non-Metric Multidimensional Scaling NMS (a.k.a. NMDS) with PC-ORD software.

Progress/Completion Report, 2011, PDF

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