Perch Dissection Lab

Phillip Goldman

Objectives

Dissect and identify parts and organs of a Perch

Background information

The Perch also know as the Perca is a member of pylum chordata. It live in fresh water and preys upon minnows, blood shrimp, razor clams and grass shrimp. Perches are eaten by stripped bass, weak fish, bluefish and walleye. Perches are very color full which help them with mating. They also tend to travel in large packs to help protect them from predators. The Perch helps the ecosystem by acting as a type of population control.

Circulatory system

The circulatory system of a perch is know as a single loop circulatory system. This means that blood flows to the heart from only one direction. The heat is made up of two parts know as the ventricle and the atrium. To start of the process blood enters the gills of the fish from the afferent branches of the ventral aorta. The The aorta pumps blood to the rest of the arteries and capillaries pump deoxygenated blood into the veins to go to the heart.

Functions of the Circulatory system

Ventricle-chamber of the heart

Atrium-chamber of the heart

Capillaries- pumps deoxygenated blood into the veins

Veins-move deoxygenated blood to the heat

Aorta-distributes blood to body

Gills- responsible for oxygen intake.

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Interesting Facts

1-Packs of Perches are sometimes split into packs of male and female.

2-Perches lay eggs that stick to plants

3- There are 3 different colors of Perches.

Human Impact

Perches are a very popular fish in North America and are highly prized. The perch can act as very good bate to catch other fish.
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Classification

Kingdom- animalia


phylum- chordata


class- actinopterygii


order- perciformes


family- percidae


genus- perca