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Fish And Macroinvertebrate Response To Restored Off Channel Habitats On The Lower Platte River, Nebraska, Caleb Uerling Jun 2017

Fish And Macroinvertebrate Response To Restored Off Channel Habitats On The Lower Platte River, Nebraska, Caleb Uerling

School of Natural Resources: Dissertations, Theses, and Student Research

Anthropogenic alterations to large rivers ranging from impoundments to levees have caused many rivers to no longer access the floodplain. The ecological integrity of floodplain rivers depends on the interaction between main-channel and floodplain habitats. Fish communities inhabiting floodplain habitats are often dictated by the type of habitat and conditions within that habitat. As restoration projects are undertaken it is imperative that managers understand how fish and macroinvertebrates respond to these events. We collected fish, macroinvertebrates, and habitat parameters on two restored floodplain habitats on the lower Platte River, Nebraska to answer questions about aquatic community response to floodplain restoration …


Hydraulics Near Unscreened Diversion Pipes In Open Channels: Large Flume Experiments, Ali Ercan, M. Levent Kavvas, Kara Carr, Zachary Hockett, Houssein Bandeh, Timothy D. Mussen, Dennis E. Cocherell, Jamilynn B. Poletto, Joseph J. Cech Jr., Nann A. Fangue Apr 2017

Hydraulics Near Unscreened Diversion Pipes In Open Channels: Large Flume Experiments, Ali Ercan, M. Levent Kavvas, Kara Carr, Zachary Hockett, Houssein Bandeh, Timothy D. Mussen, Dennis E. Cocherell, Jamilynn B. Poletto, Joseph J. Cech Jr., Nann A. Fangue

School of Natural Resources: Faculty Publications

Most of the water diversions on the Sacramento and San Joaquin Rivers (California, United States) and their tributaries are currently unscreened. These unscreened diversions are commonly used for irrigation and are potentially harmful to migrating and resident fishes. A large flume (test section: 18.29 m long, 3.05 m wide and 3.20 m high) was used to investigate the hydraulic fields near an unscreened water diversion under ecologically and hydraulically relevant diversion rates and channel flow characteristics. We investigated all combinations of three diversion rates (0.28, 0.42, and 0.57 m3/s) and three sweeping velocities (0.15, 0.38, and 0.61 m/s), …


Dietary Cation–Anion Difference May Explain Why Ammonium Urate Nephrolithiasis Occurs More Frequently In Common Bottlenose Dolphins (Tursiops Truncatus) Under Human Care Than In Free-Ranging Common Bottlenose Dolphins1, A. J. Ardente, R. S. Wells, C. R. Smith, M. T. Walsh, E. D. Jensen, T. L. Schmitt, J. Colee, B. J. Vagt, R. C. Hill Jan 2017

Dietary Cation–Anion Difference May Explain Why Ammonium Urate Nephrolithiasis Occurs More Frequently In Common Bottlenose Dolphins (Tursiops Truncatus) Under Human Care Than In Free-Ranging Common Bottlenose Dolphins1, A. J. Ardente, R. S. Wells, C. R. Smith, M. T. Walsh, E. D. Jensen, T. L. Schmitt, J. Colee, B. J. Vagt, R. C. Hill

United States Navy: Publications

Ammonium urate nephrolithiasis frequently develops in common bottlenose dolphins (Tursiops truncatus) managed under human care but is rare in free-ranging common bottlenose dolphins. In other species, the dietary cation–anion difference (DCAD) can affect ammonium urate urolith formation by increasing proton excretion as ammonium ions. Therefore, differences in diet between the 2 dolphin populations could affect urolith formation, but the DCAD of most species consumed by free-ranging and managed dolphins is unknown. To compare the nutrient composition of diets consumed by free-ranging and managed bottlenose dolphins, samples (n = 5) of the 8 species of fish commonly consumed …


Unusual Aerobic Performance At High Temperatures In Juvenile Chinook Salmon, Oncorhynchus Tshawytscha, Jamilynn B. Poletto, Dennis E. Cocherell, Sarah E. Baird, Trinh X. Nguyen, Valentina Cabrera-Stagno, Anthony P. Farrell, Nann A. Fangue Jan 2017

Unusual Aerobic Performance At High Temperatures In Juvenile Chinook Salmon, Oncorhynchus Tshawytscha, Jamilynn B. Poletto, Dennis E. Cocherell, Sarah E. Baird, Trinh X. Nguyen, Valentina Cabrera-Stagno, Anthony P. Farrell, Nann A. Fangue

School of Natural Resources: Faculty Publications

Understanding how the current warming trends affect fish populations is crucial for effective conservation and management. To help define suitable thermal habitat for juvenile Chinook salmon, the thermal performance of juvenile Chinook salmon acclimated to either 15 or 19°C was tested across a range of environmentally relevant acute temperature changes (from 12 to 26°C). Swim tunnel respirometers were used to measure routine oxygen uptake as a measure of routine metabolic rate (RMR) and oxygen uptake when swimming maximally as a measure of maximal metabolic rate (MMR) at each test temperature. We estimated absolute aerobic scope (AAS = MMR − RMR), …


Dietary Cation–Anion Difference May Explain Why Ammonium Urate Nephrolithiasis Occurs More Frequently In Common Bottlenose Dolphins (Tursiops Truncatus) Under Human Care Than In Free-Ranging Common Bottlenose Dolphins, A. J. Ardente, R. S. Wells, C. R. Smith, M. T. Walsh, E. D. Jensen, T. L. Schmitt, J. Colee, B. J. Vagt, R. C. Hill Jan 2017

Dietary Cation–Anion Difference May Explain Why Ammonium Urate Nephrolithiasis Occurs More Frequently In Common Bottlenose Dolphins (Tursiops Truncatus) Under Human Care Than In Free-Ranging Common Bottlenose Dolphins, A. J. Ardente, R. S. Wells, C. R. Smith, M. T. Walsh, E. D. Jensen, T. L. Schmitt, J. Colee, B. J. Vagt, R. C. Hill

United States Navy: Publications

Ammonium urate nephrolithiasis frequently develops in common bottlenose dolphins (Tursiops truncatus) managed under human care but is rare in free-ranging common bottlenose dolphins. In other species, the dietary cation–anion difference (DCAD) can affect ammonium urate urolith forma- tion by increasing proton excretion as ammonium ions. Therefore, differences in diet between the 2 dolphin populations could affect urolith formation, but the DCAD of most species consumed by free-ranging and managed dolphins is unknown. To compare the nutrient composition of diets consumed by free-ranging and managed bottlenose dolphins, samples (n = 5) of the 8 species of fish commonly …


The Nebraska Stream Surveys--The Photographs: Nebraska Streams Photographed During Raymond Johnson's Statewide Stream Fishery Survey (1939-41) And How They Look Now, 78 Years Later., Steven C. Schainost Jan 2017

The Nebraska Stream Surveys--The Photographs: Nebraska Streams Photographed During Raymond Johnson's Statewide Stream Fishery Survey (1939-41) And How They Look Now, 78 Years Later., Steven C. Schainost

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

Raymond E. Johnson and associates surveyed Nebraska's streams for fish (1939-1941). This print-ready pdf shows original photographs from the survey side-by-side with the author's recent photographs from the same or nearby locations, along with comments regarding changes observed. Includes map and index of locations.


The Nebraska Stream Fishery Surveys: Being A Comparison Of The First Statewide Collections Of Raymond Johnson (1939-1941) With A Recent Resurvey (2003-2005), Steven C. Schainost, Edward J. Peters Jan 2017

The Nebraska Stream Fishery Surveys: Being A Comparison Of The First Statewide Collections Of Raymond Johnson (1939-1941) With A Recent Resurvey (2003-2005), Steven C. Schainost, Edward J. Peters

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The first statewide survey of Nebraska fishes was done between 1939 and 1941. This survey was repeated between 2003 and 2005. This document compares and contrasts the results of those two surveys to illustrate what has changed and what hasn't changed over that 60 year period. It is hoped that this document can serve as a resource for future researchers to track changes in Nebraska's fish communities.