Dr. Lackmann has worked with thousands of otoliths across dozens of freshwater fish species spanning a diverse array of families. He has extensive experience with otolith dissection, processing, and age validation. Many of his studies have pioneered the first thorough or successful use of otoliths in certain species including bigmouth buffalo, black buffalo, blue sucker, bowfin, quillback, and Pahrump Poolfish.
- Amiidae
- Amia
- Bowfin A. calva
- Amia
- Lepisosteidae
- Lepisosteus
- Longnose Gar L. osseus
- Spotted Gar L. oculatus
- Shortnose Gar L. platostomus
- Atractosteus
- Alligator Gar A. spatula
- Lepisosteus
- Acipenseridae
- Scaphirhynchus
- Shovelnose Sturgeon S. platorynchus
- Scaphirhynchus
- Polyodontidae
- Polyodon
- American Paddlefish P. spathula
- Polyodon
- Hiodontidae
- Hiodon
- Goldeye H. alosoides
- Hiodon
- Catostomidae
- Ictiobus
- Bigmouth Buffalo I. cyprinellus
- Smallmouth Buffalo I. bubalus
- Black Buffalo I. niger
- Carpiodes
- Quillback C. cyprinus
- River Carpsucker C. carpio
- Catostomus
- White Sucker C. commersonii
- Moxostoma
- Greater Redhorse M. valenciennesi
- Golden Redhorse M. erythrurum
- Silver Redhorse M. anisurum
- Shorthead Redhorse M. macrolepidotum
- Cycleptus
- Blue Sucker C. elongatus
- Ictiobus
- Cyprinidae
- Cyprinus
- Common Carp C. carpio
- Ctenopharyngodon
- Grass Carp C. idella
- Cyprinus
- Ictaluridae
- Ictalurus
- Channel Catfish I. punctatus
- Ictalurus
- Esocidae
- Esox
- Northern Pike E. lucius
- Muskellunge E. masquinongy
- Esox
- Salmonidae
- Coregonus
- Cisco C. artedi
- Lake Whitefish C. clupeaformis
- Coregonus
- Lotidae
- Lota
- Burbot L. lota
- Lota
- Goodeidae
- Empetrichthys
- Pahrump Poolfish E. latos
- Empetrichthys
- Percidae
- Perca
- Yellow Perch P. flavescens
- Sander
- Walleye S. vitreus
- Perca
- Centrarchidae
- Lepomis
- Bluegill L. macrochirus
- Pumpkinseed L. gibbosus
- Pomoxis
- Black Crappie P. nigromaculatus
- Micropterus
- Largemouth Bass M. salmoides
- Lepomis
- Sciaenidae
- Aplodinotus
- Freshwater Drum A. grunniens
- Aplodinotus