Gulf Sturgeon

Fisheries ◽  
2018 ◽  
Vol 43 (12) ◽  
pp. 622-622
Keyword(s):  
Gulf Sturgeon

SURGICAL REMOVAL OF CATARACTS DUE TO DIPLOSTOMUM SPECIES IN GULF STURGEON (ACIPENSER OXYRINCHUS DESOTOI)

2005 ◽  
Vol 36 (3) ◽  
pp. 504-508 ◽  
Author(s):  
Robert S. Bakal ◽  
Brian H. Hickson ◽  
Brian C. Gilger ◽  
Michael G. Levy ◽  
James R. Flowers ◽  
...  
Keyword(s):  
Surgical Removal ◽  
Gulf Sturgeon ◽  
Acipenser Oxyrinchus Desotoi ◽  
Acipenser Oxyrinchus

Why do sturgeons jump? Insights from acoustic investigations of the Gulf sturgeon in the Suwannee River, Florida, USA

2002 ◽  
Vol 18 (4-6) ◽  
pp. 617-620 ◽  
Author(s):  
K. J. Sulak ◽  
R. E. Edwards ◽  
G. W. Hill ◽  
M. T. Randall
Keyword(s):  
Gulf Sturgeon ◽  
Suwannee River

Anadromous Sturgeons: Habitats, Threats, and Management

2007 ◽  
Keyword(s):  
Growth Rate ◽  
Population Size ◽  
Yellow River ◽  
Large Population ◽  
Leading Edge ◽  
The Yellow River ◽  
Gulf Sturgeon ◽  
Successful Recruitment ◽  
Viable Population ◽  
Size Growth

<em>Abstract.</em>—The Gulf sturgeon <em>Acipenser oxyrinchus desotoi</em> is an anadromous species listed as threatened under the Endangered Species Act in 1991. We conducted a 3year tagging study to estimate population size, growth, mortality, and age composition for sturgeon in the Yellow River. Capture probabilities and population size were estimated using Program MARK and a Cormack-Jolly–Seber model. Total mortality of Gulf sturgeon was estimated using a Beverton–Holt mortality equation. Growth rate was determined from annuli on the leading edge of pectoral fin-ray. A total of 522 Gulf sturgeon captures were made, and 399 individual fish were tagged. The population estimates for the Gulf sturgeon over 3 years ranged from 500 to 911 fish. The age structure of the population suggests successful recruitment and a viable population. The total annual mortality estimate for Yellow River Gulf sturgeon was 11.9%. Growth rate for the Yellow River population was comparable to other populations of Gulf sturgeon. The Yellow River Gulf sturgeon population is a dynamic population based upon consistent age-classes as an indicator of successful recruitment, a large population size relative to most rivers where Gulf sturgeon are found, and estimates of mortality below the reported range for the species.

Biology, Management, and Protection of North American Sturgeon

2002 ◽  
Keyword(s):  
Life History ◽  
Gulf Of Mexico ◽  
River System ◽  
Ultrasonic Telemetry ◽  
Marine Habitat ◽  
Gulf Sturgeon ◽  
Sandy Substrate ◽  
Sampling Locations ◽  
Acipenser Oxyrinchus Desotoi ◽  
Acipenser Oxyrinchus

Abstract.<em>—</em>Although most species of anadromous sturgeons worldwide are threatened with extinction, information on the estuarine and marine components of their life history is generally lacking. During March 1997 to July 1999, we used ultrasonic telemetry to examine estuarine and marine habitat use of adult Gulf sturgeon <em>Acipenser oxyrinchus desotoi</em> from the Choctawhatchee Bay/River System, Florida. During winter and spring, telemetered Gulf sturgeon were distributed nonrandomly within Choctawhatchee Bay, with most relocations in nearshore areas 2–4 m deep. Within the bay, Gulf sturgeon occasionally moved long distances but usually remained in localized areas (<1 km<sup>2</sup>) for several weeks. Areas where Gulf sturgeon remained for prolonged periods were characterized by sandy substrate harboring a benthic community dominated by crustaceans and annelids. A majority of male Gulf sturgeon remained exclusively in Choctawhatchee Bay during the winter and spring. In contrast, a majority of females during this time were either relocated in the Gulf of Mexico or were absent at sampling locations, having last been detected at bay entrances. Declines in habitat quality in Choctawhatchee Bay and the Gulf of Mexico may hinder recovery of this species, since adult Gulf sturgeon rely on these areas for nourishment during periods of gonadal growth.

Status and Recovery Potential of Gulf Sturgeon in the Pearl River System, Louisiana–Mississippi

1998 ◽  
Vol 18 (4) ◽  
pp. 798-808 ◽  
Author(s):  
James V. Morrow ◽  
James P. Kirk ◽  
K. Jack Killgore ◽  
Howard Rogillio ◽  
Charles Knight
Keyword(s):  
River System ◽  
Pearl River ◽  
Gulf Sturgeon ◽  
Recovery Potential ◽  
The Pearl River

scholarly journals Simulated Impacts of Juvenile Mortality on Gulf of Mexico Sturgeon Populations

2002 ◽  
Vol 2 ◽  
pp. 270-274 ◽  
Author(s):  
William B. Tate ◽  
Mike S. Allen
Keyword(s):  
Gulf Of Mexico ◽  
Population Viability ◽  
Juvenile Survival ◽  
Juvenile Mortality ◽  
Gulf Sturgeon ◽  
Four Levels ◽  
Age Structured ◽  
The Impact ◽  
Management And Conservation ◽  
Mortality Estimates

We used an age-structured computer model to assess the impact of changes in juvenile mortality on the Gulf of Mexico sturgeon population in the Suwannee River, Florida. We simulated population trends under four levels of annual juvenile mortality (20, 25, 30, and 35%). As the rate of mortality increased, population size decreased, and rates of population growth shifted from positive to negative. Our models indicated that juvenile survival is important to the success of gulf sturgeon populations, and mortality estimates are needed to predict population viability. We suggest that life history studies in estuaries should be conducted, and bycatch rates for commercial fisheries should be quantified to aid in the management and conservation of gulf sturgeon.

scholarly journals Growth Estimation of Western Population Segment Gulf Sturgeon Using Length-at-Age and Mark-Recapture Data

2018 ◽  
Vol 147 (1) ◽  
pp. 139-150
Author(s):  
Michael J. Andres ◽  
William T. Slack ◽  
Mark S. Peterson ◽  
Kayla D. Kimmel ◽  
Bradley R. Lewis ◽  
...  
Keyword(s):  
Mark Recapture ◽  
Western Population ◽  
Gulf Sturgeon ◽  
Growth Estimation ◽  
Population Segment

Defining winter trophic habitat of juvenile Gulf Sturgeon in the Suwannee and Apalachicola rivermouth estuaries, acoustic telemetry investigations

2009 ◽  
Vol 25 (5) ◽  
pp. 505-515 ◽  
Author(s):  
K. J. Sulak ◽  
M. T. Randall ◽  
R. E. Edwards ◽  
T. M. Summers ◽  
K. E. Luke ◽  
...  
Keyword(s):  
Acoustic Telemetry ◽  
Gulf Sturgeon
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