Cut You Up And See Whats Up
Perch Dissection By Michael Flora- Mitcham- P2- Pap Bio
Objectives
to observe the external and internal anatomy of a perch.
to determine the sex of a perch using internal anatomy.
Background Information
External Picture
Cutting Open The Perch
Looking Inside The Perch
External Anatomy
Internal Anatomy
Circulatory Organs Labeled
Functions
1.heart: muscular organ helping blood to circulate
2. atrium: upper chambers of the heart that receives blood and turns it into the ventricles
3. ventral aorta: circulates the blood from the heart to the gills then on through the head + body
4. gills: organ that extracts oxygen from the water
5. dorsal aorta: carries blood from the heart to the organs
6. jugular vein :carries blood from head to face
7.kidney :maintains the pressure of internal fluids
8. ovary: reproductive system; an egg-producing organ
9. intestine: breaks down food by enzymes and makes it into a liquid mixture which empties into the small intestine.
10. liver: all the blood goes through it it is always processing food
Circulatory System
The circulatory system of perch is quite simple. Like mammals, it consists of a heart, blood and blood vessels. The heart of a perch is a simple muscular structure that is located between the posterior gill arches. It is enclosed by the pericardial membrane or pericardium. The heart consists of an atrium, a ventricle, a sac-like thin-walled structure known as sinus venosus and a tube, known as bulbus arteriosus. In spite of containing four parts, the heart of a perch is considered two-chambered.
Extra Information
1. The heaviest perch ever recorded was 4 pounds and 3 ounces.
2. Perch's are found throughout the United States and Canada.
3. Females deposit their eggs on underwater vegetation.
4. Perch's tend to go to light to eat bugs.
5. Eggs hatch in two weeks.
6. Males reach maturity in 1-3 years and females reach maturity in 2-3 years.
7. Perch's are easy to catch with bait and good to eat.
Classification
Domain: Eukarya
Kingdom: Animalia
Phylum: Chordata
Class: Ostechthyes
Order: Perciformes
Family: Percidae
Genus: Perca
Species: Flavescens
Cladogram
Human Impact
Citations
http://www.fcps.edu/islandcreekes/ecology/yellow_perch.htm
http://bioweb.uwlax.edu/bio203/2010/dorff_kell/adaptation.htm
http://www.iowas.co.uk/external%20anatomy.jpg
http://jb004.k12.sd.us/MY%20WEBSITE%20INFO/PICS/INTERNAL_FISH_ANATOMY.JPG
http://vet.osu.edu/assets/courses/vm608/anatomy/fig27.gif
http://www.buzzle.com/articles/circulatory-system-of-a-fish.html
http://fishing.about.com/od/fishfacts/a/Yellow-Perch-Fact-Sheet.htm
http://static.ddmcdn.com/gif/perch-fishing-tips-1.jpg
http://bioweb.uwlax.edu/bio203/2010/dorff_kell/classification.htm
http://bioscholars2.wikispaces.com/file/view/cladogram_1.gif/166557489/417x250/cladogram_1.gif
http://bioweb.uwlax.edu/bio203/2010/dorff_kell/yellow_perch_giant.jpg
http://www.yellowperchfingerlings.com/wp-content/uploads/2013/05/YellowPerch.jpg