The objective of this project was to determine if populations of Common Carp (Cyprinus carpio) in East Lake Winona varied from West Lake Winona carp populations in abundance and age/size structure. Field work included boat-electrofishing along shorelines of East and West Lake Winona, extracting 3-4 scales, weighing, and measuring length of each Common Carp caught. Lab work included aging each common carp caught using a dissecting microscope, fine-tip permanent marker, and calipers to determine the distance of each growth ring from the center of the scale. A total of 44 Common Carp were sampled during the study, 14 individuals from East Lake Winona and 30 individuals from West Lake Winona. West Lake had a Common Carp density of 26.25 fish per hectare and East Lake had a density of 10.00 fish per hectare. Age-size structure showed a difference in the common carp populations between East Lake Winona and West Lake Winona.https://openriver.winona.edu/urc2019/1098/thumbnail.jp
