Movement of Gulf Sturgeon, Acipenser Oxyrinchus Desotoi, in the Suwannee River, Florida PDF Download
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Author: Ann M. Foster
Publisher:
ISBN:
Category : Gulf sturgeon
Languages : en
Pages : 260
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Author: Ann M. Foster
Publisher:
ISBN:
Category : Gulf sturgeon
Languages : en
Pages : 260
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Author: Julianne E. Harris
Publisher:
ISBN:
Category :
Languages : en
Pages :
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ABSTRACT: Gulf of Mexico sturgeon, Acipenser oxyrinchus desotoi, inhabit the Suwannee River, Florida, from late spring through early fall before migrating into the Suwannee River estuary and nearshore Gulf of Mexico. Despite this long river residence, it has been suggested that Gulf sturgeon forage almost exclusively while in marine and estuarine environments. The primary goal of the present study was to examine the distribution of ultrasonic-tagged Gulf sturgeon in the Suwannee River estuary, Florida, in relation to water quality parameters (salinity, temperature, and dissolved oxygen), sediment type, and the distribution of benthic invertebrates, especially the distribution of the Gulf sturgeon's main prey resources: amphipods, brachiopods, and brittle stars. Ultrasonic-tagged Gulf sturgeon were tracked on emigration from the Suwannee River in the fall of 2001 until they returned to the river in the spring of 2002. Water quality parameters were recorded at each relocation position. Patterns of use of the Suwannee River estuary by the relocated Gulf sturgeon were calculated as utilization distributions. Sediment and invertebrates were collected from 28 locations in the Suwannee River estuary.
Author: James Alan Huff
Publisher:
ISBN:
Category : Acipenseriformes
Languages : en
Pages : 44
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Author:
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 40
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The Gulf sturgeon population in the Pearl River was monitored from 1992 through 1996 and compared to historical data sets from the 1960s and 1980s. The estimated population sire iii 1996 was approximately 300 fish with adults comprising about 3 percent of the population. Annual mortality rates in the late 1960s were about 9 percent; these rates increased to almost 40 percent in 1985 and decreased to about 26 percent during 1992 through 1996. Population modeling was used to evaluate the sturgeon's status and recovery potential. Results of models suggest that this population can only withstand mortality rates in the range of 13 to 18 percent, depending upon recruitment assumptions. Population models indicated that catch and fishing effort data specified in the Gulf Sturgeon Recovery Plan may not detect a declining population. Population models can be used to simulate annual variation in population sire under different rates of mortality. Recovery goals can address a specific source of mortality simulated in the model and monitoring can determine the success of recovery efforts. Population modeling does not require considerably more effort or expertise over that already required to conduct monitoring studies.
Author: Anne Wakeford
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 100
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Author: United States. Office of the Assistant Secretary of the Army (Civil Works)
Publisher:
ISBN:
Category : Borgne, Lake (La.)
Languages : en
Pages : 1762
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Author: Michael J. Murphy
Publisher:
ISBN:
Category : Gulf sturgeon
Languages : en
Pages : 48
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Author: Jean Munro
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 438
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Book Description
Because of their threatened status, sturgeons have been the focus of broad scientific interest. This book provides new information on freshwater, estuarine, and marine habitats of anadromous sturgeons; examines threats to habitats and populations; and reviews management and population trends in light of progress on recovery of U.S. Atlantic sturgeon populations since fishing was banned.
Author: Vadim J. Birstein
Publisher: Springer Science & Business Media
ISBN: 0306468549
Category : Science
Languages : en
Pages : 444
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Book Description
Selected, reviewed and revised papers from the International Conference on Sturgeon Biodiversity and Conservation held at The American Museum of Natural History in New York on 28-30 July 1994
Author: Carter Rowell Gilbert
Publisher:
ISBN:
Category : Atlantic sturgeon
Languages : en
Pages : 44
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