Conservation genetics of the tropical gar (Atractosteus tropicus, Lepisosteidae)
Conservation genetics of the tropical gar (Atractosteus tropicus, Lepisosteidae)
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热带雀鳝(Atractosteus tropicus,Lepisosteidae)的保护遗传学
DOI:
10.1007/s10592-023-01509-2
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发表时间:
2023
影响因子:
2.2
通讯作者:
Voelker, Gary
中科院分区:
文献类型:
--
作者:
Palacios Mejia, Maura;Arias-Rodriguez, Lenin;Arciniega, Martha;Rodríguez, Victoria;Barraza Sandoval, José Enrique;Herrera, Néstor;Marroquín Mora, Dora Carolina;Ulloa Rojas, Juan B.;Márquez Couturier, Gabriel;Voelker, Gary
The tropical gar (Atractosteus tropicus) is the smallest member of the family Lepisosteidae; yet this species has a large socioeconomic impact in México and Central America where it is traditionally harvested commercially and for subsistence. While natural populations of tropical gar have been dwindling throughout its natural range, it is also an emergent aquaculture species that is produced in local hatcheries and grown out in privately owned ponds. The increased pressure on natural populations ofA. tropicusand its increasing use in aquaculture production poses potential conflicts for the management and conservation of natural populations. Here, we investigated the population genetic structure of tropical gar populations, including over 200 individuals sampled in México, El Salvador, and Costa Rica. Using 11 microsatellite loci, we identified three genetic clusters with distinct geographic distributions, including a cluster in drainages along the Pacific versant of Central America, a cluster in the Grijalva and Usumacinta River basins that drain into the Gulf of México, and a cluster in the Río San Juan that drains into the Caribbean Sea. Given the degree of divergence observed, these results indicate the potential presence of evolutionary significant units within tropical gar that warrant separate fisheries and conservation management. We also found that tropical gar from an aquaculture facility along the Pacific versant of México were derived from Atlantic versant populations, indicating that individuals have already been translocated across biogeographic boundaries. We discuss how such translocations can negatively impact the natural population structure of tropical gar and provide recommendations for future research and aquaculture practices.
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影响因子:
3.3
作者:
J. K. Pritchard;Matthew Stephens;Peter Donnelly
通讯作者:
J. K. Pritchard;Matthew Stephens;Peter Donnelly
影响因子:
4.6
作者:
Brito PM;Alvarado-Ortega J;Meunier FJ
通讯作者:
Meunier FJ
DOI:
10.1155/2012/780169
发表时间:
2012
期刊:
International Journal of Evolutionary Biology
影响因子:
--
作者:
S. McCafferty;Andrew P. Martin;E. Bermingham
通讯作者:
E. Bermingham
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
Sandra Bohn;E. Barraza;Caleb D. McMahan;Wilfredo A. Matamoros;B. Kreiser
通讯作者:
B. Kreiser
影响因子:
1.4
作者:
S. David;S. M. King;J. Stein
通讯作者:
J. Stein