publication . Article . 2007

Conservation strategies for Arapaima gigas (Schinz, 1822) and the Amazonian várzea ecosystem

Hrbek,T.; Crossa,M.; Farias,IP.;
Open Access English
  • Published: 01 Dec 2007 Journal: Brazilian Journal of Biology (issn: 1678-4375, Copyright policy)
  • Publisher: Instituto Internacional de Ecologia
Abstract
In the present study we report a spatial autocorrelation analysis of molecular data obtained for Arapaima gigas, and the implication of this study for conservation and management. Arapaima is an important, but critically over-exploited giant food fish of the Amazonian várzea. Analysis of 14 variable microsatellite loci and 2,347 bp of mtDNA from 126 individuals sampled in seven localities within the Amazon basin suggests that Arapaima forms a continuous population with extensive genetic exchange among localities. Weak effect of isolation-by-distance is observed in microsatellite data, but not in mtDNA data. Spatial autocorrelation analysis of genetic and geograp...
Subjects
free text keywords: gene flow, Botany, QL1-991, reserves, autocorrelation, QH301-705.5, microsatellites, Q, Science, QK1-989, pirarucu, várzea, Biology (General), Zoology
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publication . Article . 2007

Conservation strategies for Arapaima gigas (Schinz, 1822) and the Amazonian várzea ecosystem

Hrbek,T.; Crossa,M.; Farias,IP.;