The Perceptive Perch
Rachel Shen. Vu-PAPBio-2. Perch Dissection Lab
Dissecting the Perch
Objectives of the Perch
Digestive System (Fish Focus)
The digestive system is made up of the mouth, the esophagus, the stomach, the liver, the intestine, and the anus.
There are 5 main different types of fins labeled on the fish. They are the caudal, dorsal, anal, pelvic, and pectoral. The caudal fin has a powerful thrust to propel the fish, the dorsal fins stabilizes the fish through sharp turns, the pectoral fin controls up and down movement, the anal fin stabilizes movement and helps sharp turns, and the pelvic fin controls the direction of movement.
The gills of the fish are hidden behind the operculum There are 4 layers and the 3 parts include the gill filaments, the gill arch, and the gill rakers.
Did you know that there are several different types of perch fish? This includes the Nile perch fish, the European perch fish, the yellow perch fish, the red perch fish, etc.
Did you know that people fish perch fish? Perch fish is a common fish that many fishermen fish. It is easily caught with the right bait.
Did you know that the perch has no eyelids? Fish don't have eyelids, which is why they keep their eyes open when they sleep.
Did you know about the pharynx? The pharynx is an area just behind the mouth which is very elastic and can stretch to keep the fish alive by helping the fish being able to hold more food.
Did you know about the heart? It's made up of two parts-- the ventricle and the atrium.
Perch Dissection Lab Packet (of course)