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Gasterosteidae (sticklebacks)

Gasterosteidae (sticklebacks). Small, unscaled body Free spines anterior to dorsal fin Pelvic fin consists of 1 spine Narrow caudal peduncle. brook stickleback ( Culaea inconstans ) ). New York State Department of Environmental Conservation. Gasterosteidae. NFC’s Native Fish Gallery.

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Gasterosteidae (sticklebacks)

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  1. Gasterosteidae (sticklebacks) • Small, unscaled body • Free spines anterior to dorsal fin • Pelvic fin consists of 1 spine • Narrow caudal peduncle brook stickleback (Culaea inconstans)) New York State Department of Environmental Conservation

  2. Gasterosteidae NFC’s Native Fish Gallery • 1 IA species • Golf-ball sized nest composed of fibers • Male guards nest, young • Prey on small animals brook stickleback (Culaea inconstans))

  3. Cottidae (sculpins) New York State Department of Environmental Conservation • Small body • Wide, flat head • Eyes on upper side of head; close together • Divided dorsal fin of spiny and soft components • Large pectoral fins slimy sculpin (Cottus cognatus))

  4. Cottidae http://www.nps.gov • 2 species in northeast IA • Bottom dwellers in cold streams, lakes; often co-occur with salmonids • Benthivorous Mottled sculpin (Cottus bairdi))

  5. Moronidae (temperate basses) Iowa Department of Natural Resources • Deep bodied, laterally compressed • Ctenoid scales • Dorsal fin completely divided; anterior portion with spines, posterior region mostly soft • 3 anal spines • Pelvic fins thoracic (jugular) • Spine on opercle • IA species with lateral stripes yellow bass (Morone mississippiensis))

  6. Moronidae • Random spawners (no nests) • Rivers, lakes, reservoirs • Prey on invertebrates, fish Ohio EPA white bass (Morone chrysops))

  7. Centrarchidae (sunfishes and basses) Ohio EPA • Deep bodied, laterally compressed • Ctenoid scales • Dorsal fin undivided; anterior portion with spines, posterior region mostly soft rays • 3-8 anal spines • Pelvic fins thoracic (jugular) • No spine on opercle bluegill (Lepomis macrochirus))

  8. Centrarchidae Ohio EPA • Nesters; male scoops out depression, guards nest • Many are game species • Small individuals consume invertebrates; large ones piscivorous largemouth bass (Micropterus salmoides))

  9. Percidae (perches) Ohio EPA • Ctenoid scales • Dorsal fin completely divided; anterior portion with spines, posterior region soft • 1-2 anal spines; 2nd spine not broad and long yellow perch (Perca flavescens))

  10. Percidae Ohio EPA • Important economically, recreationally, ecologically • Small individuals consume invertebrates; large ones piscivorous • Darters sensitive to environmental degradation; water-quality indicators walleye (Stizostedion vitreum)) Iowa DNR fantail darter (Etheostoma flabellare))

  11. Sciaenidae (drums) Ohio Department of Natural Resources • Large, humpbacked body • Subterminal mouth • Long, divided dorsal fin; anterior with spines, posterior soft • Pelvic fins thoracic or jugular in position • 1-2 anal spines; 2nd spine broad and long • Lateral line extends onto caudal fin freshwater drum (Aplodinotus grunniens))

  12. Sciaenidae • Rumbling sound produced by swim bladder • Benthivorous on invertebrates • Eggs, larvae float at water surface Ohio EPA freshwater drum (Aplodinotus grunniens))

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