This research involves large river, stream, lake, and ocean fishes: shovelnose (Scaphirhynchus platorynchus) and endangered pallid (Scaphirhynchus albus) sturgeons, threatened Neosho madtom (Noturus placidus), endangered Topeka shiner (Notropis topeka), and sharks. It uses field and laboratory collection of behavioral, physiological, population, and ecosystem data for biological understanding and development of forecasting models for support of recovery efforts.
Neosho madtom: Research includes field sampling to evaluate Neosho madtom population size and distribution and effect of water regulation and lead-zinc mining and laboratory behavioral studies to determine environmental factors critical for successful reproduction. As part of this work, guidance is being provided to The Peoria Tribe of Indians of Oklahoma in hatchery and potential reintroduction efforts.
Shovelnose and pallid sturgeons: Research includes development of minimally-invasive (i.e., ultrasonic, endoscopic, and blood-based) methods for assessing reproductive status; identification of environmental cues and habitat requirements for successful spawning through telemetry and habitat mapping; and development of spatially-explicit population forecasting models.
Topeka shiner: Research uses controlled laboratory conditions and computer-controlled systems to deliver multiple levels of environmental conditions to gain a better understanding of environmental conditions for successful reproduction.
Sharks: Research includes population modeling, food habitat, nursery potential, and movement information for Padre Island National Seashore (PINS) shark populations. It is designed to provide a better understanding of the status of shark populations associated with PINS and the Texas Gulf of Mexico coast, and the environmental factors affecting their behavior and population trends.