Distribution of endemic and imperiled fauna of the Tallapoosa River system of Georgia

Proceedings of the 2003 Georgia Water Resources Conference, held April 23-24, 2003, at the University of Georgia.A proposal for a water supply reservoir in the Tallapoosa River system in Northwest Georgia has called attention to the potential effects of a large impoundment on the faunal resources of the system. The Tallapoosa and Little Tallapoosa Rivers and their tributaries support species assemblages found nowhere else, including five endemic fishes, two endemic crayfishes, and an endemic snail, in addition to a federally threatened mussel (Lampsilis altilis). We are analyzing survey data collected in 1990 and in 2002 to estimate species distributions, abundances, and changes in both of these factors relative to changes in land use. These data will be useful to the U.S. Fish and Wildlife Service and others for designing conservation strategies for the unique fauna of the Tallapoosa River system

Status of robust redhorse (Moxostoma robustum): reintroduction efforts and preliminary results of sonic-tracking in the Ocmulgee River

Proceedings of the 2003 Georgia Water Resources Conference, held April 23-24, 2003, at the University of Georgia.With the “rediscovery” of the robust redhorse (Moxostoma robustum) in 1993 and the recognition that Georgia harbored the only significant known remaining population of this species, a Robust Redhorse Conservation Committee (RRCC) was created. Reintroduction of robust redhorse in the Ocmulgee River was one conservation goal of this committee. Robust redhorse were released into the Ocmulgee River in 2002. To monitor the success of this reintroduction effort, we are tracking their movements using surgically implanted sonic transmitters. Telemetered robust redhorse moved between 21 and 187 river kilometers downstream of from the release site

The swamp eel, Monopterus sp. Cf. M. Albus, in the Chattahoochee River system, Fulton County, Georgia

In the mid 1990’s, researchers discovered a member of the swamp eel, family Synbranchidae, inhabiting the ponds at the Chattahoochee Nature Center (CNC). The swamp eel (Monopterus albus) is the species most similar to eels found at the CNC, although recent genetic studies indicate the CNC specimens are most likely a separate species. Swamp eels are air breathing and highly adaptable and could interfere with ecosystem function through competition with native fish species in the Chattahoochee River system if their population spreads beyond CNC boundaries. This study investigates the role of Monopterus sp. cf. M. albus in the food web of one CNC pond. Eels in this pond appear to occupy a similar trophic position as an insectivorous fish, Gambusia sp., with Lepomis and Micropterus remaining the top predators in this particular system.Sponsored by: Georgia Environmental Protection Division U.S. Geological Survey, Georgia Water Science Center U.S. Department of Agriculture, Natural Resources Conservation Service Georgia Institute of Technology, Georgia Water Resources Institute The University of Georgia, Water Resources Facult

Dealing With Uncertainty When Assessing Fish Passage Through Culvert Road Crossings

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FIGURE 4 in A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States

FIGURE 4. Sheared principal components analysis of morphometric variation among Percina crypta from the upper Chattahoochee River system (open circles), the upper Flint River system (open squares), and the lower Flint River system (open diamonds), and Percina nigrofasciata from the lower Flint River system (filled squares). Males (n=46, A) and females (n=49, B) were analyzed and plotted separately.Published as part of <i>Freeman, Mary C., Freeman, Byron J., Burkhead, Noel M. & Straight, Carrie A., 2008, A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States, pp. 25-42 in Zootaxa 1963 (1)</i> on page 33, DOI: 10.11646/zootaxa.1963.1.2, <a href="http://zenodo.org/record/5241777">http://zenodo.org/record/5241777</a&gt

A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States

Freeman, Mary C., Freeman, Byron J., Burkhead, Noel M., Straight, Carrie A. (2008): A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States. Zootaxa 1963 (1): 25-42, DOI: 10.11646/zootaxa.1963.1.2, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1963.1.

FIGURE 1 in A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States

FIGURE 1. Distribution of Percina crypta (closed circles), Chattahoochee and Flint River systems, Apalachicola River drainage (inset), USA. Type locality indicated with a star. Circles indicate examined collections of Percina. Percina nigrofasciata is known from all plotted localities; P. crypta has been found only at the localities marked with closed circles.Published as part of Freeman, Mary C., Freeman, Byron J., Burkhead, Noel M. & Straight, Carrie A., 2008, A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States, pp. 25-42 in Zootaxa 1963 (1) on page 27, DOI: 10.11646/zootaxa.1963.1.2, http://zenodo.org/record/524177

Diel Patterns and Temporal Trends in Spawning Activities of Robust Redhorse and River Redhorse in Georgia, Assessed Using Passive Acoustic Monitoring

<div><p></p><p>The conservation of imperiled species depends upon understanding threats to the species at each stage of its life history. In the case of many imperiled migratory fishes, understanding how timing and environmental influences affect reproductive behavior could provide managers with information critical for species conservation. We used passive acoustic recorders to document spawning activities for two large-bodied catostomids (Robust Redhorse <i>Moxostoma robustum</i> in the Savannah and Broad rivers, Georgia, and River Redhorse <i>M. carinatum</i> in the Coosawattee River, Georgia) in relation to time of day, water temperature, discharge variation, moonlight, and weather. Robust Redhorse spawning activities in the Savannah and Broad rivers were more frequent at night or in the early morning (0100–0400 hours and 0800–1000 hours, respectively) and less frequent near midday (1300 hours). Spawning attempts in the Savannah and Broad rivers increased over a 3–4-d period and then declined. River Redhorse spawning activities in the Coosawattee River peaked on the first day of recording and declined over four subsequent days; diel patterns were less discernible, although moon illumination was positively associated with spawning rates, which was also observed for Robust Redhorses in the Savannah River. Spawning activity in the Savannah and Broad rivers was negatively associated with water temperature, and spawning activity increased in association with cloud cover in the Savannah River. A large variation in discharge was only measured in the flow-regulated Savannah River and was not associated with spawning attempts. To our knowledge, this is the first study to show diel and multiday patterns in spawning activities for any <i>Moxostoma</i> species. These patterns and relationships between the environment and spawning activities could provide important information for the management of these species downstream of hydropower facilities.</p><p>Received July 9, 2014; accepted December 10, 2014</p></div