Population viability of the Gulf of Mexico sturgeon : Inferences from capture-recapture and age-structured models
Identifieur interne : 000330 ( PascalFrancis/Corpus ); précédent : 000329; suivant : 000331Population viability of the Gulf of Mexico sturgeon : Inferences from capture-recapture and age-structured models
Auteurs : William E. Iii Pine ; Mike S. Allen ; Victoria J. DreitzSource :
- Transactions of the American Fisheries Society : (1900) [ 0002-8487 ] ; 2001.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
The Suwannee River, Florida, population of the Gulf of Mexico sturgeon Acipenser oxyrinchus desotoi, a subspecies of Atlantic sturgeon A. oxyrinchus oxyrinchus, was evaluated using a capture-recapture approach and an age-structured model to examine population trends from 1986 through 1995. The capture-recapture analysis revealed a positive rate of change (λ) in the adult population, indicating that it was slowly increasing from the mid-1980s through the mid-1990s. The age-structured model revealed that the population was highly sensitive to changes in egg-to-age-1 mortality, the percentage of females that spawn annually, and adult mortality. The model predicted that even slight increases in annual adult mortality (from 16% to 20%) would result in a decline in the Suwannee River Gulf sturgeon population. Population trends were consistent for both modeling procedures and were similar to those in published reports. Although this population is currently expanding, care should be taken to protect adult fish from any fishing or bycatch mortality. Given the particular attributes of Gulf sturgeon (such as late sexual maturation, the fact that few mature females spawn each year, and high early life mortality), managers should be patient and willing to monitor populations for extended periods of time (∼20 years) to detect changes in the adult population.
Notice en format standard (ISO 2709)
Pour connaître la documentation sur le format Inist Standard.
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Format Inist (serveur)
NO : | PASCAL 02-0174738 INIST |
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ET : | Population viability of the Gulf of Mexico sturgeon : Inferences from capture-recapture and age-structured models |
AU : | PINE (William E. III); ALLEN (Mike S.); DREITZ (Victoria J.) |
AF : | Department of Fisheries and Aquatic Sciences, University of Florida, 7922 Northwest 71st Street/Gainesville, Florida 32653/Etats-Unis (1 aut., 2 aut.); Florida Cooperative Fish and Wildlife Research Unit, University of Florida, 117 Newnins-Ziegler Hall, Box 110450/Gainesville, Florida 32611/Etats-Unis (3 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Transactions of the American Fisheries Society : (1900); ISSN 0002-8487; Coden TAFSAI; Etats-Unis; Da. 2001; Vol. 130; No. 6; Pp. 1164-1174; Bibl. 1 p.1/4 |
LA : | Anglais |
EA : | The Suwannee River, Florida, population of the Gulf of Mexico sturgeon Acipenser oxyrinchus desotoi, a subspecies of Atlantic sturgeon A. oxyrinchus oxyrinchus, was evaluated using a capture-recapture approach and an age-structured model to examine population trends from 1986 through 1995. The capture-recapture analysis revealed a positive rate of change (λ) in the adult population, indicating that it was slowly increasing from the mid-1980s through the mid-1990s. The age-structured model revealed that the population was highly sensitive to changes in egg-to-age-1 mortality, the percentage of females that spawn annually, and adult mortality. The model predicted that even slight increases in annual adult mortality (from 16% to 20%) would result in a decline in the Suwannee River Gulf sturgeon population. Population trends were consistent for both modeling procedures and were similar to those in published reports. Although this population is currently expanding, care should be taken to protect adult fish from any fishing or bycatch mortality. Given the particular attributes of Gulf sturgeon (such as late sexual maturation, the fact that few mature females spawn each year, and high early life mortality), managers should be patient and willing to monitor populations for extended periods of time (∼20 years) to detect changes in the adult population. |
CC : | 002A14B03C2A |
FD : | Etude longitudinale; Variation pluri annuelle; Frai; Femelle; Mortalité; Animal adulte; Effectif population; Recrutement population; Age; Modèle mathématique; Méthode capture recapture; Cours eau; Floride; Golfe du Mexique; Acipenser oxyrinchus; Acipenseridae |
FG : | Etats Unis; Amérique du Nord; Amérique; Milieu eau douce; Dynamique population; Méthodologie; Pisces; Vertebrata |
ED : | Follow up study; Multiyear variation; Spawning; Female; Mortality; Adult animal; Population number; Population recruitment; Age; Mathematical model; Capture recapture method; Stream; Florida; Gulf of Mexico |
EG : | United States; North America; America; Freshwater environment; Population dynamics; Methodology; Pisces; Vertebrata |
SD : | Estudio longitudinal; Variación plurianual; Freza; Hembra; Mortalidad; Animal adulto; Recuento población; Reclutamiento poblaciónal; Edad; Modelo matemático; Método marca sobremarca; Curso agua; Florida; Golfo de Mejico |
LO : | INIST-9749.354000099954580120 |
ID : | 02-0174738 |
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Pascal:02-0174738Le document en format XML
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<front><div type="abstract" xml:lang="en">The Suwannee River, Florida, population of the Gulf of Mexico sturgeon Acipenser oxyrinchus desotoi, a subspecies of Atlantic sturgeon A. oxyrinchus oxyrinchus, was evaluated using a capture-recapture approach and an age-structured model to examine population trends from 1986 through 1995. The capture-recapture analysis revealed a positive rate of change (λ) in the adult population, indicating that it was slowly increasing from the mid-1980s through the mid-1990s. The age-structured model revealed that the population was highly sensitive to changes in egg-to-age-1 mortality, the percentage of females that spawn annually, and adult mortality. The model predicted that even slight increases in annual adult mortality (from 16% to 20%) would result in a decline in the Suwannee River Gulf sturgeon population. Population trends were consistent for both modeling procedures and were similar to those in published reports. Although this population is currently expanding, care should be taken to protect adult fish from any fishing or bycatch mortality. Given the particular attributes of Gulf sturgeon (such as late sexual maturation, the fact that few mature females spawn each year, and high early life mortality), managers should be patient and willing to monitor populations for extended periods of time (∼20 years) to detect changes in the adult population.</div>
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<fC01 i1="01" l="ENG"><s0>The Suwannee River, Florida, population of the Gulf of Mexico sturgeon Acipenser oxyrinchus desotoi, a subspecies of Atlantic sturgeon A. oxyrinchus oxyrinchus, was evaluated using a capture-recapture approach and an age-structured model to examine population trends from 1986 through 1995. The capture-recapture analysis revealed a positive rate of change (λ) in the adult population, indicating that it was slowly increasing from the mid-1980s through the mid-1990s. The age-structured model revealed that the population was highly sensitive to changes in egg-to-age-1 mortality, the percentage of females that spawn annually, and adult mortality. The model predicted that even slight increases in annual adult mortality (from 16% to 20%) would result in a decline in the Suwannee River Gulf sturgeon population. Population trends were consistent for both modeling procedures and were similar to those in published reports. Although this population is currently expanding, care should be taken to protect adult fish from any fishing or bycatch mortality. Given the particular attributes of Gulf sturgeon (such as late sexual maturation, the fact that few mature females spawn each year, and high early life mortality), managers should be patient and willing to monitor populations for extended periods of time (∼20 years) to detect changes in the adult population.</s0>
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<s5>05</s5>
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<s5>08</s5>
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<s5>15</s5>
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<s5>16</s5>
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<s5>16</s5>
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<s5>17</s5>
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<s5>60</s5>
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<ET>Population viability of the Gulf of Mexico sturgeon : Inferences from capture-recapture and age-structured models</ET>
<AU>PINE (William E. III); ALLEN (Mike S.); DREITZ (Victoria J.)</AU>
<AF>Department of Fisheries and Aquatic Sciences, University of Florida, 7922 Northwest 71st Street/Gainesville, Florida 32653/Etats-Unis (1 aut., 2 aut.); Florida Cooperative Fish and Wildlife Research Unit, University of Florida, 117 Newnins-Ziegler Hall, Box 110450/Gainesville, Florida 32611/Etats-Unis (3 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Transactions of the American Fisheries Society : (1900); ISSN 0002-8487; Coden TAFSAI; Etats-Unis; Da. 2001; Vol. 130; No. 6; Pp. 1164-1174; Bibl. 1 p.1/4</SO>
<LA>Anglais</LA>
<EA>The Suwannee River, Florida, population of the Gulf of Mexico sturgeon Acipenser oxyrinchus desotoi, a subspecies of Atlantic sturgeon A. oxyrinchus oxyrinchus, was evaluated using a capture-recapture approach and an age-structured model to examine population trends from 1986 through 1995. The capture-recapture analysis revealed a positive rate of change (λ) in the adult population, indicating that it was slowly increasing from the mid-1980s through the mid-1990s. The age-structured model revealed that the population was highly sensitive to changes in egg-to-age-1 mortality, the percentage of females that spawn annually, and adult mortality. The model predicted that even slight increases in annual adult mortality (from 16% to 20%) would result in a decline in the Suwannee River Gulf sturgeon population. Population trends were consistent for both modeling procedures and were similar to those in published reports. Although this population is currently expanding, care should be taken to protect adult fish from any fishing or bycatch mortality. Given the particular attributes of Gulf sturgeon (such as late sexual maturation, the fact that few mature females spawn each year, and high early life mortality), managers should be patient and willing to monitor populations for extended periods of time (∼20 years) to detect changes in the adult population.</EA>
<CC>002A14B03C2A</CC>
<FD>Etude longitudinale; Variation pluri annuelle; Frai; Femelle; Mortalité; Animal adulte; Effectif population; Recrutement population; Age; Modèle mathématique; Méthode capture recapture; Cours eau; Floride; Golfe du Mexique; Acipenser oxyrinchus; Acipenseridae</FD>
<FG>Etats Unis; Amérique du Nord; Amérique; Milieu eau douce; Dynamique population; Méthodologie; Pisces; Vertebrata</FG>
<ED>Follow up study; Multiyear variation; Spawning; Female; Mortality; Adult animal; Population number; Population recruitment; Age; Mathematical model; Capture recapture method; Stream; Florida; Gulf of Mexico</ED>
<EG>United States; North America; America; Freshwater environment; Population dynamics; Methodology; Pisces; Vertebrata</EG>
<SD>Estudio longitudinal; Variación plurianual; Freza; Hembra; Mortalidad; Animal adulto; Recuento población; Reclutamiento poblaciónal; Edad; Modelo matemático; Método marca sobremarca; Curso agua; Florida; Golfo de Mejico</SD>
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<ID>02-0174738</ID>
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