PAP Bio Goes Fishing

Perch Dissection

Something smells fishy...

The Perch belongs to the genus Perca, and belongs to the family Percidae. The perch lives in freshwater. Perch are carnivorous fish that are found in small ponds, lakes, streams, and rivers. They feed on smaller fish, shell fish, and fish bait. The perch is most common in the Great Lakes. The perch belongs to the species Perca genus. The predators of the perch include, birds, larger fish, turtles, and water snakes.

Perch are sought-after by fishermen both for sport and for food. They can be caught with a variety of methods, but the two best methods are perhaps float fishing and lure fishing. Perch grow to around 5 lb or more, but the most common fish to be caught are around 1 lb or less, and anything over 2 lb is considered a prize catch.

Taxonomy

The perch belongs to the kingdom Animalia, the phylum Chordata, the class Actinopterygii, the order Perciformes, the family Percidae, and the genus Perca.

Bet You Didn't Know...

~Females lay egg strands, with up to 40,000 eggs. A little after the female laid her eggs, the males will go and fertilize them. Three weeks after they are fertilized they will hatch. Adult perch's do not care for their eggs or young.

~The most common perch, the Yellow Perch, evolved from the Nile Perch.

~The perch is often eaten by fisherman.

~True perch have "rough" or ctenoid scales

~They have paired pectoral and pelvic fins, and two dorsal fins, the first one spiny and the second soft

Perch Dissection.wmv

Circulatory System

We focused on the circulatory system while we were dissecting our perch, so here is a picture of the perch labeled. The circulatory system is important because it allows blood to flow through the perch, and uses its gills to help it breathe.
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Objectives

On this day we dissected the Perch, using dissection scissors and answered questions, the circulatory was our main focus.