Download or read book Recruitment of Atlantic Sturgeon and Shortnose Sturgeon Within the Savannah River Georgia and South Carolina written by Alexander Jeffrey Cummins and published by . This book was released on 2018 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The endangered Atlantic (Acipenser oxyrinchus oxyrinchus) and Shortnose Sturgeons (A. brevirostrum) were once abundant within major rivers along North America's Atlantic coast from the St. John River, Canada and the St. Johns River, Florida. Anthropogenic factors such as over-harvest and habitat degradation have contributed to severe declines in populations of both species throughout their ranges. Despite both species being listed as endangered, significant gaps in scientific literature, particularly population demographics are still present. The objectives of this study are to quantify annual recruitment of juvenile Atlantic and Shortnose Sturgeons in the Savannah River, and to determine environmental drivers of recruitment. The results of this study provide baseline abundance data that will be critical in evaluating long-term population trends and for assessing the effects of dredging in the Savannah River. This study provides key information regarding long-term management of endangered Atlantic and Shortnose Sturgeon throughout the southern reaches of their range.

Download or read book Population Characteristics of Atlantic Sturgeon and Shortnose Sturgeon in the Savannah River Georgia written by Derek Lawrence Bahr and published by . This book was released on 2015 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atlantic Sturgeon (Acipenser oxyrinchus oxyrinchus) and Shortnose Sturgeon (A. brevirostrum) once thrived along the Atlantic Coast of North America. Severe overfishing and habitat loss during the 1900s resulted in major population declines that led to the listing of both species under the U.S. Endangered Species Act of 1973. Presently, quantified abundance data is lacking for most systems, particularly at southerly latitudes. From 2013 to 2014, I collected mark-recapture data for both Shortnose and juvenile Atlantic Sturgeon occupying the Savannah River, Georgia. The results of this study provide the first quantified recruitment and abundance estimates for the Savannah River. These estimates are critical in evaluating the conservation status of these species and may allow researchers to evaluate trends in abundance and recruitment among and within rivers over time. Furthermore, the results of this study provide key information for proper management of these imperiled species in the southern portion of their range.

Download or read book Identification of Critical Habitat Requirements of Shortnose Sturgeon in South Carolina written by Theodore Isaac Jogues Smith and published by . This book was released on 1993 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Characteristics and Seasonal Movements of Shortnose Sturgeon in the Lower Ogeechee River Georgia with Notes on the Atlantic Sturgeon written by Joel Fleming and published by . This book was released on 2002 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by Carter Rowell Gilbert and published by . This book was released on 1989 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Savannah Harbor Expansion Project Chatman County Georgia and Jasper County South Carolina written by United States. Office of the Assistant Secretary of the Army (Civil Works) and published by . This book was released on 2013 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Age Structure Reproduction and Recruitment of Atlantic Sturgeon Acipenser Oxyrinchus and Shortnose Sturgeon Acipenser Brevirostrum in the Cooper River South Carolina written by Victoria Kate Ruddle and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This study investigated the age structure, recruitment, and reproduction of two endangered anadromous fish species, Atlantic Sturgeon (Acipenser oxyrinchus) and Shortnose Sturgeon (Acipenser brevirostrum), in the Cooper River in South Carolina. The second marginal pectoral fin ray was evaluated as a new ageing technique, and validated in hatchery-raised Atlantic Sturgeon. There was no significant difference between side sampled (left vs. right pectoral fins) in Atlantic Sturgeon (n = 47, t = 0.000, p = 1.00) and Shortnose Sturgeon (n = 48, t = 1.1985, p = 0.2367). Shortnose Sturgeon sampled were estimated to be between 13 to 41 yrs old (N = 39) and Atlantic Sturgeon sampled were estimated to be between 3 to 21 yrs old (N = 9). Reproductive surveys resulted in one Shortnose Sturgeon egg collected in 2015 and 14 eggs collected in 2017. No Atlantic Sturgeon eggs were collected, but spawning adults were sampled at the spawning site in the Cooper River.

Download or read book A Behavioral Comparison of Hatchery reared and Wild Shortnose Sturgeon in the Savannah River South Carolina Georgia written by Drew Trested and published by . This book was released on 2003 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Assessment written by and published by . This book was released on 2010 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The current EA analyzed the effects of the proposed Atlantic and shortnose sturgeon research, which will be conducted in the waters of South Carolina, North Carolina, and Georgia. Specifically, the funded work would be used for: development, installation, and maintenance of an acoustic receiver array to track the movement of shortnose and Atlantic sturgeon in North Carolina (Roanoke, Chowan, Meherrin, and Cape Fear rivers), South Carolina (Savannah, Combahee, Edisto, Cooper, Santee, and Winyah Bay system), and Georgia (Altamaha, Ogeechee and Satilla rivers) rivers, coastal waters, and the Intracoastal Waterway; acoustic and satellite tagging and monitoring the movements of 20 to 30 (of each species) Atlantic sturgeon and shortnose sturgeon each year (i.e., 60 to 90 total per species over the life of the project) to identify and assess the use of spawning and other habitat and interbasin and coastal movements; development and testing of a less invasive procedure for aging of these two species based on relative DNA telomere length from small tissue samples; and participation in multiple types of stakeholder outreach efforts"--Cover letter.

Download or read book Diel Movement of Hatchery reared and Wild Shortnose Sturgeon in the Savannah River South Carolina Georgia written by Tiffany E. Griggs and published by . This book was released on 2003 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atlantic Sturgeon written by Michael J. Van Den Avyle and published by . This book was released on 1984 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Survey of the Sturgeon Fishery of South Carolina written by John G. Leland and published by . This book was released on 1968 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Savannah Harbor Expansion Project Chatman County Georgia and Jasper County South Carolina written by United States. Office of the Assistant Secretary of the Army (Civil Works) and published by . This book was released on 2013 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seasonal Occurrence and Movements of Atlantic Sturgeon acipenser Oxyrinchus Oxyrinchus in Georgia and Florida written by Adam Gregory Fox and published by . This book was released on 2018 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Atlantic Sturgeon (Acipenser oxyrinchus oxyrinchus) is a federally endangered anadromous fish that historically occurred along the Atlantic coast of North American from Canada to Florida. Through the 20th century, overharvest and dam construction resulted in range-wide population declines. Despite two decades of federal protection, many populations have not recovered, and information about the status of many populations is lacking, especially in the Southeastern United States. Recruitment may be a bottleneck for recovery, but habitat use by early juveniles is not well understood. The objectives of this study were to 1) assess the status of Atlantic Sturgeon populations in the St. Johns River in Florida and the St. Marys River in Georgia, at the southern margin of the species' range, and 2) describe seasonal movement by juvenile Atlantic Sturgeon in the Ogeechee, Altamaha, and Satilla Rivers in Georgia. Sturgeon were captured using monofilament gill and trammel nets, and some individuals were tagged with surgically-implanted acoustic transmitters. Fish movements were monitored using an array of passive acoustic receivers distributed throughout the lower river and estuary of each system. We found no evidence of an extant population of Atlantic Sturgeon within the St. Johns River system, but did document the presence of young juveniles in the St. Marys River. Those fish represent a small, but genetically distinct population in a river where the species had previously been thought extirpated. Our results also indicated that both rivers continue to provide seasonally important habitat for migrating adults from other populations. Tagged age-1 river-resident juvenile sturgeon in the Ogeechee, Altamaha, and Satilla Rivers exhibited similar patterns of seasonal habitat use 0́3 during the summer, fish were concentrated in upriver portions of nursery habitat, but during the winter they dispersed downriver and used more polyhaline habitat. Also during the winter of age-2, at least 30% of tagged fish outmigrated from their natal river. These results provide important information for management agencies regarding the status of Atlantic Sturgeon in the two southernmost rivers in their range, as well as helping to fill knowledge gaps about juvenile habitat use and outmigration.

Download or read book Shortnose Sturgeon Acipenser Brevirostrum Le Sueur 1818 Recovery Plan written by Shortnose Sturgeon Recovery Team and published by . This book was released on 1982 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diets of Shortnose and Atlantic Sturgeon in South Carolina written by Marine Resources Research Institute (S.C.) and published by . This book was released on 2006 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Elba III Project written by and published by . This book was released on 2007 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: