#perch_flesh__perch  spiny-finned freshwater food and game fishes
  supertype:  #percoid_fish__percoidfish__percoid__percoidean  any of numerous spiny-finned fishes of the order Perciformes
  member of:  #family_Percidae
  subtype:  #yellow_perch__Perca_flavescens  North American perch
  subtype:  #European_perch__Perca_fluviatilis  a perch native to Europe
  subtype:  #pikeperch__pike_perch  any of several pike-like fishes of the perch family
     subtype:  #walleyed_pike__walleye__jack_salmon__Stizostedion_vitreum  pike-like freshwater perches
        subtype:  #blue_pike__blue_pickerel__blue_pikeperch__blue_walleye__Strizostedion_vitreum_glaucum  variety inhabiting the Great Lakes
  subtype:  #snail_darter__snaildarter__Percina_tanasi  3-inch snail-eating perch of the Tennessee River

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