A Perch's Life

Perch Dissection Vu-PAP BIO-3

The Perch (Perca flavescens)

The perch, (Perca flavescens) is classified as phylum Chordata, which means that the perch has a backbone. The perch also belongs to class Actinopterygii, order Perciformes, and family Percidae. Certain characteristics include being carnivorous, growing up to one pound in weight, and will live between 9-10 years. The perch will reproduce around spring time, when female perches lay their eggs in the lake in which they live in.

Today's Objectives

The student will observe the external and internal structures of the perch. The student will focus on the organs, the functions of the organs and the endocrine and circulatory systems of the perch.

Body system spotlight: Circulatory

The perch has a closed circulatory system, which means that blood does not leave the blood vessels. The system consists of the heart, gills, arteries, capillaries, and veins. Deoxygenated blood (blood with little oxygen) is pumped from the heart to the gills. The gills then oxygenates the blood and the blood is returned back to the body, which is eventually cycled back to the heart to start the cycle again.