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Aphredoderidae (pirateperch)

Explore various native fish species found in Iowa waters, including the pirate perch, burbot, blackstripe topminnow, mosquitofish, and brook silverside. Learn about their unique characteristics, habitats, and feeding habits.

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Aphredoderidae (pirateperch)

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  1. Aphredoderidae (pirateperch) Noel Burkhead • Large head, mouth • Mouth epiterminal • Dorsal, anal fins with spines • Vertical stripe below eye • Anus anterior to usual position (often jugular) pirateperch (Aphredoderus sayanus))

  2. Aphredoderidae Noel Burkhead • Family consists of 1 species • Inhabits slow waters • Preys on invertebrates • Possibly occurs near or in IA section of Mississippi River pirateperch (Aphredoderus sayanus))

  3. Gadidae (cods) • Long body • Single barbel under lower jaw • Long dorsal fin; soft rays • Small pelvic fins located near pectoral fins • Cycloid scales Manitoba Conservation Department burbot (Lota lota))

  4. Gadidae • 1 species in IA • Inhabits deep waters of Mississippi, Missouri rivers • Edible, but “threatened” in IA; too rare to be commercially important Manitoba Conservation Department burbot (Lota lota))

  5. Fundulidae (topminnows, killifishes) • Small body • Epiterminal mouth • Fins consist of soft rays • Dorsal fin near posterior end of body • Caudal fin homocercal, unforked • 3rd anal ray branched, umcompletely so in immatures http://www.nativefish.org blackstripe topminnow (Fundulus notatus))

  6. Fundulidae Eddy and Underhill (1978) • Uncommon in IA • Adapted for surface feeding on invertebrates

  7. Poeciliidae (livebearers) • Small body • Epiterminal mouth • Fins consist of only soft rays • Dorsal fin near posterior end of body • Caudal fin homocercal, unforked • 3rd anal ray unbranched • Male anal fin modified into gonadopodium http://nix.freenet.uz/sci/fkey/gambusia.html mosquitofish (Gambusia affinis))

  8. Poeciliidae • Surface feed on invertebrates • Live young • 1 species in extreme southeast IA? Eddy and Underhill (1978)

  9. Atherinidae (silversides) http://www.blackwarriorriver.org • Small, slender body • Translucent • Epiterminal mouth; long, flat snout • Divided dorsal fin; spines (anterior), soft rays (posterior) • Homocercal, forked caudal fin brook silverside (Labidesthes sicculus))

  10. Atherinidae • Surface feeders; swim near water surface • Brook silverside found in variety of rivers, streams New York State Department of Environmental Conservation brook silverside (Labidesthes sicculus))

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