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Author: Gulf Sturgeon Recovery/Management Task Team (U.S.)
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 170
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Author: Gulf Sturgeon Recovery/Management Task Team (U.S.)
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 170
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 58
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Author:
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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: United States. Office of the Assistant Secretary of the Army (Civil Works)
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Category : Borgne, Lake (La.)
Languages : en
Pages : 1762
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Author:
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Category :
Languages : en
Pages : 644
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Author: H. Jared Flowers
Publisher:
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Category :
Languages : en
Pages :
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ABSTRACT: Gulf sturgeon Acipenser oxyrinchus desotoi is a U.S. federally threatened species found throughout the northern Gulf of Mexico. The viability of the Apalachicola River, Florida Gulf sturgeon population is a concern to fishery managers because of the small population size, slow rate of population recovery, and numerous threats to recovery, including habitat loss and interstate water allocation battles. Although Gulf sturgeon harvest has been illegal since 1985, managers and researchers are concerned that the population is not recovering at the desired rate to meet the recovery criteria objective of delisting by 2023.
Author: Vadim J. Birstein
Publisher: Springer Science & Business Media
ISBN: 0306468549
Category : Science
Languages : en
Pages : 444
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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: United States. Forest Service. Southern Region
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Category : Apalachicola National Forest (Fla.)
Languages : en
Pages : 820
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 674
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Author: United States. Forest Service. Southern Region
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 658
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