Browsing by Author "DeVries, Dennis"

Now showing items 1-20 of 42

Assessing population impacts of low-use lock-and-dam structures on the Alabama River: fish hard-part microchemistry and genetics

Kratina, Garret (2019-04-15)

Two techniques, hard-part microchemistry and genetics, were used in a coordinated effort to determine the impacts of low-use lock-and-dam structures on riverine fish species of varying migratory nature and capability. ...

Assessing Southern Flounder Population in the Northern Gulf of Mexico

Stanfill, Adrian (2017-11-20)

Abstract Despite Southern Flounder being a commercially and recreationally important flatfish species in the northern Gulf of Mexico (GOM), our understanding is poorly described of its population dynamics. I collected ...

Assessment of Electrofishing Bias, Angler Exploitation, and a Creel Survey, and Flathead Catfish Population Assessment in Lake Wilson, Alabama

Marshall, Matthew (2008-08-15)

A popular recreational and commercial catfish fishery for blue catfish Ictalurus furcatus, channel catfish I. punctatus, and to a lesser extent, flathead catfish Pylodictus olivaris exists on Lake Wilson, Alabama. Catfish ...

Assessment of larval fish entrainment at Plant Barry Steam Electric Generating Facility on the Mobile River, Alabama

McKinney, Robbie (2006-12-15)

This study examined larval fish entrainment at Plant Barry Steam Electric Generating Facility near Mobile, Alabama with both short-term intensive (17-21 May 2004) sampling and a long-term (September 2004June 2005) collection ...

Biotic and abiotic factors affecting the distribution of Paddlefish Polyodon Spathula in William “Bill” Dannelly Reservoir and the Cahaba River, Alabama.

Smith, Chris (2023-12-06)

Paddlefish Polyodon spathula river section use, and summer backwater use (where zooplankton is thought to be abundant) vary seasonally. I quantified Paddlefish habitat use in Dannelly Reservoir, Alabama, which includes the ...

Comparing Aquatic Communities across Spatial and Environmental Scales in the Mobile Bay Estuary

Kemp, Christopher (2016-08-30)

Abstract Estuaries are important ecosystems that sit at the interface of marine and freshwater environments. Mobile Bay is a large, river-influenced estuary in the northern Gulf of Mexico. The mechanisms that govern ...

Consumer adaptation mediates top-down regulation of ecosystems across a nutrient gradient

Chislock, Michael IV (2016-03-07)

Individuals within a species frequently differ in important traits, and these differences are known functions of genetic, epigenetic, and environmental influences. While evolutionary biologists have been studying ...

Controlled Spawning of White Catfish, Ictalurus catus, and Brown Bullhead Catfish, Ameiurus nebulosus, Using Carp Pituitary Extract and LHRHa

Fobes, Michael (2013-01-03)

If successful artificial spawning techniques can be developed, white catfish, Ictalurus catus, and brown bullhead, Ameiurus nebulosus, may have the potential to become model organisms for accelerated catfish genetics ...

Distribution, abundance, and population characteristics of shoal bass in tributaries of the Chattahoochee River, Alabama

Stormer, David (2007-12-15)

The shoal bass Micropterus cataractae is the most recently described black bass species and in east-central Alabama, this fish only occurs in streams that flow into the Chattahoochee River. Recently, shoal bass were listed ...

Effects of Dams on Migratory Fishes in the Alabama River: Laying the Groundwork for Restoration

Hershey, Henry (2023-07-27) ETD File Embargoed

To understand the effects of dams on migratory fishes in the Alabama River Basin and support conservation of these species, I conducted studies on the past, present, and potential future of the system. The first study was ...

Effects of Rostrum Injuries on Body Condition, Dam Passage, and Hydrodynamics of Paddlefish (Polyodon spathula) in the Alabama River

Steffensmeier, Nathaniel (2024-04-05) ETD File Embargoed

The rostrum of Paddlefish (Polyodon spathula) aids in finding zooplankton prey as well as provides lift and stability during swimming, but this structure can sometimes be damaged or even completely missing. Injury or loss ...

Effects of Tagging and Translocation on Paddlefish in the Alabama River

Thomas, Byron Daniel (2020-07-30)

Dams directly impede fish movement. Different passage structures have been incorporated into the design of dams in attempt to restore connectivity, however, passage is limited to particular fish species. Lock-and-dam ...

The effects of temperature and dissolved oxygen on fish respiration determined by enzymatic and organismal techniques

Horne, Lindsay (2021-04-16)

One of the greatest threats to freshwater biodiversity is anthropogenic alteration to habitat. Temperature change is one of the most important anthropogenic impacts, especially for ectotherms that experience the effects ...

The effects of tournament fishing on dispersal, population characteristics, and mortaltiy of black bass in Lake Martin, Alabama

Ricks, Benjamin (2006-05-15)

A great deal of black bass Micropterus spp. tournament activity occurs at Wind Creek State Park (WCSP), located at the north end of Lake Martin, Alabama. Because of the popularity of this location as a tournament processing ...

Estuaries as habitat for a freshwater species: Ecology of largemouth bass (Micropterus salmoides) along a salinity gradient

Norris, Alicia (2007-05-15)

Similar to the freshwater systems largemouth bass inhabit, the largemouth bass is a popular recreational sportfish in estuarine environments, like the Mobile-Tensaw Delta. However, catch rates of large (= 2.3 kg) largemouth ...

Evaluating the Effects of Threadfin Shad on Largemouth Bass and Bluegill Populations in Small Impoundments

Lusk, Sean (2016-01-12)

Threadfin Shad are commonly stocked into small impoundments (<40 hectares in surface area) to increase the growth and condition of Largemouth Bass, ultimately to enhance recreational fishing. However, the effects of Threadfin ...

Evaluating the effects of three Alabama River dams on fish movements and population connectivity using otolith microchemistry

Rotar, Christopher (2022-04-20)

Dams impede fish movement and can isolate riverine populations into defined areas. The Alabama River is divided into four major sections by three lock-and-dam structures. I used otolith microchemistry to quantify movements ...

Evaluating the Potential Impacts of the Introduced Blueback Herring, Alosa aestivalis, on the Aquatic Communities in Lewis Smith Lake, Alabama

Grove, Gary Lee Jr. (2016-01-12)

Reservoir food webs are complex, making prediction of the influence of introducing new species difficult. Blueback Herring Alosa aestivalis were first discovered in Lewis Smith Lake, Alabama in 2010 and both positive and ...

An Examination of Stream Fishes at 3 Levels: Species-Area and Environmental Interactive Influences on Fish Species Richness, Stream Type Influences on Assemblage Membership, and Variation in Weight-Length Parameters by Stream Type & Fish Trait

Colvin, Susan (2016-05-05)

Obtaining an understanding of the multi-scale influences on species richness is of concern not only to theoretical development but to building an understanding of potential mechanisms of rapid species loss. To address ...

Factors Affecting Largemouth Bass Size Structure at Wheeler and Guntersville Reservoirs, Alabama

Feltz, Nicholas (2015-07-23)

Understanding the characteristics of a fish population is vital to the assessment and management of the stock. Size structure and abundance are two such characteristics of a population and they have the potential to vary ...