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Title:Long-term Survey and Assessment of Large-River Fishes in Illinois, 2016
Author(s):DeBoer, Jason A.; Whitten, Andrya L.; Culver, Edward F.; Lubinski, Benjamin J.; Parker, Jerrod; Costenbader, Drew; Gibson-Reinemer, Daniel K.; Casper, Andrew F.; Cao, Yong; Chick, John H.; Epifanio, John E.
Subject(s):Large rivers
Fish population monitoring
Geographic Coverage:Mississippi River, Illinois
Kankakee River, Illinois
Iroquois River, Illinois
Abstract:3EXECUTIVE SUMMARYThis report presents a summary of those data collected during segment 28(2016-17) of the Long-term Survey and Assessment of Large-River Fishes in Illinois(LTEF), an annual survey by members of the Illinois Natural History Survey,with funds administered by the U.S. Fish and Wildlife Service and the Illinois Department of Natural Resources. Sampling for the LTEF program was conducted on: six reaches of the Illinois River Waterway, foursegments or pools of the Mississippi River, and navigable portions of the Iroquois and Kankakee Rivers. In all segments of the LTEF program, all fish species collected were accurately identified, tallied, measured, and weighed. The catchrates of sportfishspecies were calculated as the number of individuals collected per hour (CPUEN± standard error).Structural indices [Proportional Size Distribution (PSD) and Relative Weight (Wr)] were also calculated for several species of interest to regional managers. Catch rates and species varied among all sampling locationsand sampling periods. Emerald Shiners and Gizzard Shad comprised the majority of the individuals caught, andSilverCarpand Common Carp accounted for the greatest proportion of the biomass collected in most sampling areasof the survey. Futureanalysis of CPUENand PSD trends in sportfish populations sampled by the program may indicate inter-annual recruitment patterns or/andlong-term trends in Illinois sportfish populations.
Issue Date:2017-06-30
Publisher:Illinois Natural History Survey
Series/Report:Technical Report INHS 2017 (23)
Genre:Technical Report
Publication Status:unpublished
Peer Reviewed:not peer reviewed
Sponsor:Federal Aid in Sport Fish Restoration F-101-R, Segment 28
Illinois Department of Natural Resources, Division of Fisheries
Rights Information:This document is a product of the Illinois Natural History Survey, and has been selected and made available by the Illinois Natural History Survey and the University Library, University of Illinois at Urbana-Champaign. It is intended solely for noncommercial research and educational use, and proper attribution is requested.
Date Available in IDEALS:2017-07-12

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