文獻來源: Torrico JP, Hubert N, Desmarais E, Duponchelle F, Rodriguez JN, Montoya-Burgos J, Davila CG, Carvajal-Vallejos FM, Grajales AA, Bonhomme F, Renno J-F. 2009. Molecular phylogeny of the genus Pseudoplatystoma (Bleeker, 1862): Biogeography and evolutionary implications. Molecular Phylogenetics and Evolution 51(3): 588-594.Contents
...In the last years molecular genetics approaches have allowed to assess cryptic patterns of diversity within and among remnant populations of threatened and endangered species. Along with inferred levels of current or historic gene flow, and demographic history, molecular data could help planning and executing conservation policies (Vrijenhoek, 1998). This is particularly true with groups of migratory freshwater fishes of high economic value such as some species of the family Pimelodidae, one of the most speciose groups of Neotropical Siluriformes (50–60 genera, 300 species; Reis et al., 2004). Largely distributed throughout South and Central America, this group of piscivorous and carnivorous species contains some of the largest and most important species for commercial and subsistence fisheries. The genus Pseudoplatystoma (Bleeker, 1862) is, in addition, a resource of growing importance for aquaculture (Nuñez et al., 2008). Pseudoplatystoma species are known to undertake complex lateral migrations between rivers, lakes and river floodplains as well as longitudinal movements (300–700 km) along river channels ([Barthem and Goulding, 1997], Loubens and Panfili, 2000 G.P.J. Loubens and J. Panfili, Biologie de Pseudoplatystoma fasciatum et P. tigrinum (Teleostei: Pimelodidae) dans le bassin du Mamoré (Amazonie Boliviene), Ichtyol Explor Freshwaters 11 (2000), pp. 13–34.[Loubens and Panfili, 2000] and [Coronel et al., 2004]). It is worth noting that some Pseudoplatystoma populations are already considered threatened due to overexploitation, hydroelectric projects, mining, deforestation and contamination (Carolsfeld et al., 2003)......
圖片連結: wikipedia (photo credit: Lerdsuwa)
