Audie Choi Mitcham PAP Bio 6th
The perch is known for its long and rounded shape. The perch has many helpful adaptations, such as the particularly rough scales on its body and the opercula on the posterior side (which protects its gills).
The perch feeds on a diverse range of prey: smaller fish, insects, worms, snails, fish eggs, mussels, larvae, etc. The perch has a predators as well, such as the trout, bass, walleye, and other carnivorous fish.
The Point of This Perch Project...
Provoking Perch Points!
- The perch will occasionally commit cannibalism, as the perch has been reported to eat smaller perch!
- The largest perch ever caught was about 3 pounds.
- The perch is a very poor swimmer, which is why it swims in schools.
- Certain schools are separated by gender.
- Female perch lay eggs upside down.
The Circulatory System of the Perch
The heart- a muscular organ that aids in the circulation of blood
The atrium- a thin wall layer inside the heart that aids in blood circulation
The ventricle- a thick wall layer inside the heart that aids in the pumping of blood
The gills- the respiratory and excretory organs that let the perch exchange oxygen and ammonium. The gill-rakers filter the water, while the filaments convert the substances (thereby aiding in both respiration and circulation)
Perch and Human Interactions
- "Perch." Wikipedia. Wikimedia Foundation, 04 July 2014. Web. 07 Apr. 2014. <http://en.wikipedia.org/wiki/Perch>
- "Yellow perch." Yellow perch. 07 Apr. 2014 <http://www.fcps.edu/islandcreekes/ecology/yellow_perch.htm>.
- "External Anatomy." External Anatomy. 09 Apr. 2014 <http://wiki.hicksvilleschools.org/groups/hsbiology/wiki/30912/External_Anatomy.html>.
- "Yellow Perch." - Answers in Genesis. 09 Apr. 2014 <http://www.answersingenesis.org/articles/aqua/yellow-perch>.
- "Action Items." Fish Facts. 09 Apr. 2014 <http://www.dnr.state.md.us/fisheries/fishfacts/yellowperch.asp>.