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Full-Text Articles in Aquaculture and Fisheries
Morphological Variation Between Juvenile White Bass And Juvenile Hybrid Striped Bass, Ryan W. Lueckenhoff
Morphological Variation Between Juvenile White Bass And Juvenile Hybrid Striped Bass, Ryan W. Lueckenhoff
School of Natural Resources: Dissertations, Theses, and Student Research
While identifying recruitment bottlenecks for white bass Morone chrysops, we encountered difficulty distinguishing between age-0 white bass and age-0 hybrid striped bass M. saxatilis x chrysops. Accurate identification of juvenile white bass and hybrid striped bass will improve the quality of data gathered for research and monitoring efforts. The first objective of this study was to estimate biologists’ accuracy identifying juvenile white bass and juvenile hybrid striped bass, and to determine which characteristics biologists were using during identification. Overall, identification accuracy was 71%. Biologists who placed less emphasis using the characteristic "broken horizontal lines" or who examined >99 …
Ecology And Management Of Channel Catfish Ictalurus Punctatus And Flathead Catfish Pylodictis Olivaris Populations In The Missouri River, Ne, Cameron Wesley Goble
Ecology And Management Of Channel Catfish Ictalurus Punctatus And Flathead Catfish Pylodictis Olivaris Populations In The Missouri River, Ne, Cameron Wesley Goble
School of Natural Resources: Dissertations, Theses, and Student Research
Channel catfish Ictalurus punctatus and flathead catfish Pylodictis olivaris are two of the most important freshwater recreational or commercial species in the United States. Catfish populations in the Missouri River are important resources to the people of Nebraska and surrounding states. The objective of my study was to determine the present status of catfish populations in the Missouri River, Nebraska. Specifically I evaluated population characteristics such as relative abundance, population size and density, size structure, condition, age structure, growth, and mortality. I used a stratified random sampling design and generalized linear mixed modeling approach to assess differences in population characteristics …