Specific Measurements of a Yellow Perch Head Compared to the Total Length

Authors

Alex Timm

Document Type

Article

Abstract

Yellow Perch Perca flavescens is a popular fish for harvesting in Minnesota. Because of this the Minnesota Department of Natural Resources survey populations with gill nets, however, some water bodies have Rusty Crayfish Faxonius rusticus that commonly consume most of the body leaving only the head to be accurately measured. The goal of this research was to see if there is a relationship between specific measurements of the head and the total length of the fish. The number of Yellow Perch sampled in this study was 72 and all came from Lake Bemidji in Minnesota during the month of October in 2023. All the fish collected were measured in millimeters using a digital caliper for the head measurements. The best relationship was using the measurement of the opercular bone (TL = 3.8137x + 2.0415; R² = 0.99). The measurement of the mouth was the second best (TL = 9.3343x + 15.992; R²=0.99) and from the tip of the mouth to the eye was the worst relationship (TL= 13.142x + 8.9854; R²=0.97). All relationships had a p value less than 0.01.

Publication Date

2024

Comments

Faculty sponsor: Dr. Andrew Hafs, Department of Biology, Aquatic Biology Program

Recommended Citation

Timm, Alex, "Specific Measurements of a Yellow Perch Head Compared to the Total Length" (2024). Journal of Earth and Life Science. 66.
https://pines.bemidjistate.edu/j-earth-life-sci/66