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Lecture Slides on Yellow Perch Perca Flavescens | BIOL 310, Study notes of Biology

Material Type: Notes; Professor: Steinhart; Class: Ichthyology; Subject: Biology; University: Lake Superior State University; Term: Spring 2010;

Typology: Study notes

Pre 2010

Uploaded on 08/07/2009

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Yellow Perch
Perca flavescens
Taxonomy
Kingdom- Animalia
Phylum- Chordata
Class- Actinopterygii
Order- Perciformes
Family- Percidae
Genus- Perca
Species- Perca flavescens
Identification
Easily identified by 6-8 vertical black
bars on side
Two separate dorsal fins with first
spiny and second rayed
General yellow color, bur can be green
or silvery especially in younger fish
Two anal spines
Yellow Perch vs. White Perch
White perch is most easily confused
with yellow perch
White perch has a connected dorsal
and no dark bars
pf3

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Yellow Perch

Perca flavescens

Taxonomy

  • Kingdom- Animalia
  • Phylum- Chordata
  • Class- Actinopterygii
  • Order- Perciformes
  • Family- Percidae
  • (^) Genus- Perca
  • Species- Perca flavescens

Identification

  • Easily identified by 6-8 vertical black bars on side
  • Two separate dorsal fins with first spiny and second rayed
  • General yellow color, bur can be green or silvery especially in younger fish
  • (^) Two anal spines

Yellow Perch vs. White Perch

  • White perch is most easily confused with yellow perch
  • White perch has a connected dorsal and no dark bars

Key Features

  • Protrusible, slightly sub-terminal mouth
  • Spines on fins
  • Ctenoid scales
  • First dorsal fin has 12-14 spines
  • Second dorsal fin has 12-13 soft rays
  • 57-62 scales on lateral line
  • Anteriorly placed pelvic fins

Swimming

  • Carangiform style
  • Slow swimmers, but can turn quickly
  • Use spines and schooling to avoid predation

Habits

  • Schooling fish, generally in groups of 50-
  • (^) Often times live in cover such as weeds or rocky areas, but will live in open areas
  • (^) Can be arranged by size, age and sex
  • Prefer warmer waters roughly 19-21 degrees C
  • Usually live 30 feet deep or shallower when these temperatures are present, move deeper in summer and winter though

Distribution and Status

  • Generally inhabits lakes or ponds but can live in slow moving rivers
  • (^) Found from the Atlantic Ocean to the Missouri river and from South Carolina to Nova Scotia
  • (^) Usually very common when present in an area
  • Stunted if under fished in small waters, but can be overfished (limits)