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These data was collected in conjuction with Upper Mississippi River Restoration-Long Term Resource Monitoring (UMRR-LTRM) element data. The goal of this data collection was to assess age structure of smallmouth buffalo Ictiobus bubalus in the Upper Mississippi River system. Through ongoing UMRR-LTRM efforts, we collected fish with a goal 10 smallmouth buffalo from 20mm length groups, beginning at 100mm of total length. Upon collection fish were measured, weighed and frozen, then transported to the Illinois River Biological Station in Havana Illinois. Upon completion of fish collection, fish were thawed and both lapillus otoliths were removed and a sex determination was made via visual inspection of the gonads. Lapillus...
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This dataset includes two series of data. The first series contains growth model coefficients for >90 fish species in the Upper Mississippi River System (UMRS). These models were fit form empirical length and weight data observed from 1993-2007 during routine annual scientific monitoring of the UMRS fish community under a federal/state partnership program known as the Upper Mississippi River Restoration (UMRR) program (see: https://umesc.usgs.gov/ltrm-home.html, accessed 3/18/2020). To achieve growth model coefficients for each fish species, length and weight data were log10 transformed and fit using statistical regression techniques (Proc GLM in SAS v 9.4). Model coefficients representing the regression y-intercept,...


    map background search result map search result map Smallmouth buffalo population demographics in the Upper Mississippi River system data Fish growth model coefficients and functional guild categories for Upper Mississippi River System fishes data Fish growth model coefficients and functional guild categories for Upper Mississippi River System fishes data Smallmouth buffalo population demographics in the Upper Mississippi River system data