~Perch Dissection~

Emily Sanchez ~ Vu PAP Bio ~ p.2


Students will work in lab groups in order to learn from the dissection of a Perch. Dissection gives students the opportunity to observe placement of organs and their relationship to one another.
Big image

Background Information

Perch fish-

Scientific Name: Perca flavescens

Habitat: The perch is found mostly in the United States and Canada, living in shoreline areas along rivers and lakes because of the vegetation that is available.

Predators (eat Perch fish): Larger fish- Largemouth Bass, Smallmouth Bass,Channel Catfish; Birds- herons, gulls, eagles, hawks; Other animals- turtles and bullfrogs.

Prey (Perch eat these): algae, plankton, aquatic insects, small fish, insects, crayfish, snails, mussels, leeches, fish eggs, and worms.

Niche: control small organism population in rivers and lakes.

Adaptations: gills that allow Perch to breathe underwater, scales that protect the fish like a layer of "skin", fins to help them swim, steer, and speed along.

Trophic Level: 3


Big image
Big image


Big image
Big image

Circulatory System

The circulatory system of a Perch is a low pressure, single loop system. The blood only flows in a single direction with constant low pressure. Deoxygenated blood is pumped throughout the heart and goes onward to the gills. The process that the blood goes through is: Blood pumped > Oxygenated > distributed throughout the body > returns to heart. This is a closed system with veins extending thoughout the entire fish.

Perch ❤ Humans

Many people eat Yellow Perch, and they are a favorite among fishermen. Yellow Perch also help people by controlling populations of other fish and aquatic animals.

Fishy Facts~

  • Sometimes they eat other Perch!
  • Perch stay active throughout winter.
  • Perch do not care for their eggs or young
  • Females produce 5,000~109,000 eggs in her lifetime.

Sources for Information

(Links were shortened, but will take you to the specific page.)



http://www.fcps.edu- Pictures and Information


Perch Dissection Lab Packet