Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Paddlefish"”.
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Status of Paddlefish in Lake Francis Case, South Dakota
Paddlefish Polyodon spathula provide recreational and commercial angling opportunities throughout much of their range. In the past 100 years, however, paddlefish populations have declined throughout their range. The construction of dams has been identified as a leading cause of population declines, …
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Fungal Control Methods, Diets and Water Temperatures Used to Culture Paddlefish, Polydon spathula
… and water temperature on growth and survival of paddlefish, Polyodon spathula, young, and the effects that fungicides have on hatching success and fry survival. The W-7 cool water diet was fed hourly and three times daily while the Liv commercial diet was fed hourly to paddlefish young for 40 …
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Evaluation of a Power Plant Reservoir As A Holding Area For Paddlefish Brood Stock
<p>Twenty paddlefish (Polyodon spathula) released into the Big Stone Power Plant boiler make-up reservoir were monitored to determine growth, condition, and food habits. In addition, fish and zooplankton populations were sampled and chemical and physical parameters measured to determine the …
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Distribution, Age, and Growth, and Feeding Ecology of Paddlefish (Polyodon spathula) In Unaltered Missouri River, South Dakota
<p>Four hundred eighty-four paddlefish (Polyodon spathula) were captured 26 June 1975 to 11 August 1976 from an unaltered stretch of Missouri River in South Dakota. Vital statistics were measured on all fish, 171 were sacrificed during the analysis of food habits, and 301 fish were tagged and …
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Behavior, Energetics, And Swimming Performance Of The American Paddlefish, Polyodon Spathula, In A Lower Mississippi River Oxbow
Paddlefish often frequent oxbows and backwater habitats between periods of migration. Speculation as to the use and energetic savings associated with this seasonal residence has not been substantiated. This study used radio telemetry to track the seasonal movements and swim tunnel respirometry to …
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Identifying Novel Molecular Mechanisms Underlying Lateral Line Organ Development in Sterlet
… a chondrostean ray-finned fish, the Mississippi paddlefish (Polyodon spathula), to generate a dataset of around 500 genes putatively enriched in lateral line organs. Candidate gene expression analysis suggested electroreceptors and hair cells are closely related cell types. To gain insight into …
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Food Habits of Walleye and Sauger in Lake Sakakawea, North Dakota
… fishes became available. Percids preyed on YOY paddlefish Polyodon spathula during October at White Earth Bay. Size of prey increased with increased percid length, but was highly variable. The resource overlap index was used to identify the potential for intra- and interspecific competition. …
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Development of a non-invasive electrophysiological system for measuring the auditory capability of marine animals
… from the order Acipenseriform (sturgeons and paddlefish). In addition to the development of the electrophysiology system and protocols, the inner ear morphology of the animals tested in this work were studied at the ultrastructural level, along with detailed descriptions of the afferent nerve …
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The role of stochastic resonance and physical constraints in the evolution of foraging strategy
… Daphnia, and also for a larger fish species, the paddlefish. Since both organisms filter-feed inside finite patches of food, albeit on different scales, the results clearly show the degree to which the physical constraints imposed upon an animal can dictate the evolution of their …
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Isolation and Characterization of Regulatory Peptides from Two Tetraploid Species, the Pallid Sturgeon, Scaphirhynchus albus, and the African Clawed Frog, Xenopus laevis
… sturgeon, Huso dauricus; and insulin-2 from the paddlefish, Polyodon spathula. Pallid sturgeon insulin is approximately twofold less potent than human insulin in inhibiting the binding of [3-[125I] iodotyrosine-A14] human insulin to the soluble human insulin receptor. The mean concentrations of …