The Punctured Perch

Perch Dissection

Pre - Puncture

The yellow perch, also known as the Perca flavescens, lives in freshwater habitats and is common in North America. Their diet consists of mostly algae and plankton, in addition to aquatic insects as they get older. Larger yellow perch will eat insects, crayfish, snails, leeches, and worms. They are preyed on by larger fish such as the Smallmouth Bass, Channel Catfish, and Walleye; as well as birds such as gulls, hawks, and mergansers. The perch can be classified as a primary consumer as well as a secondary consumer depending on what it eats or what eats it.

Time to Pierce the Perch!

External Anatomy

Internal Anatomy

Taxonomy

SCIENTIFIC CLASSIFICATION


KINGDOM Animal

PHYLUM Chordate

CLASS Bony Fish

ORDER Perciformes

FAMILY Percidae

GENUS Perca

SPECIES Perca flavescens

Evolution

The yellow perch is very tolerant so it can easily adapt to new and different environments. It can survive at low oxygen levels which means they can go to deeper waters and avoid death from the frozen lake during the winter and from other predators that may be closer to the surface. They're also very tolerant to and can survive in waters of varying temperatures and nutrient rich waters.

Human Impact

Most people don't try to catch the yellow perch, however it is the one most commonly caught. They are likely to overpopulate lakes where the larger fish, which eat them, have been removed due to fishing.

Interesting Facts

  • school, or group together, when swimming in deep waters
  • don't build a nest nor do they care for their eggs or their young during reproduction
  • longest perch to live was 13 years old
  • mercury can be accumulated in them
  • after dark, perch disperse and remain completely still until daybreak