Perch
Perch Dissection By: Maegan Hollins Vu-PAP Bio- pd.3
Objectives
Students will learn the placement and relationship of organs with the assistance of a dissection lab.
Perca flavescens
Perca flavescens also known as yellow perch is a freshwater fish found in the family Percidae. Residing in Eurasia and North America, these fish are mainly used for the purposes for food and sport. Found mainly in small ponds, lakes and rivers, these carnivorous fish feed on insect larvae, small fish, and shellfish. However perch are prey to many predators such as the catfish, bluegill, and eagle. Although they feed in shallow water, perch are usually found in a school in deeper water environments.
Perch
This picture displays the anterior end of the perch after dissection has occurred.
Internal Structure of a Perch
The top picture displays the bone structure found in the perch. The bottom picture displays the internal organs found in the perch.
The Brain!!!!!!!!
The perch has some of the same brain structure as humans do, except a lot smaller.
The Circulatory System
The perch ,like many animals, has one atrium and ventricle. It uses a single-loop system, meaning that the blood flowing through it veins only goes in one direction from the heart. Deoxygenated blood moves through the heart and onward to the gills where carbon dioxide is removed. The oxygenated blood is then distributed throughout the body and recirculates to the heart.
Circulatory System of All Fish
Anatomy of the Perch
The Circulatory System of the Perch
The Evolution of the Perch
Fun Facts & Games
Babies, Babies, Babies Galore!
A female perch can lay up to 40,000 eggs!
Hey Look At Me!
The anal, pectoral, and pelvic fins of a male perch turn bright red or orange during spawning season.
Odd Decorations
Female perch hang there eggs on vegetation in order for them to be fertilized.