striata using a molecular species identification approach-DNA bar coding that was introduced by Hebert et al. This method for taxonomic identification avoids potential confusion surrounding accurate classification of discriminating morphological characters by focusing directly on the molecular level  and has been used as a universal method that is applicable across all eukaryote taxonomic groups [23, 26–32].
In relation to this study, mitochondrial (mt DNA) gene cytochrome oxidase (COI) is the marker of choice .
Focusing on this standardized short sequence of DNA aims to benefit the taxonomist by assisting in the classification of known species as well as by identifying cryptic diversity, potentially leading to the discovery of new undescribed taxa [26, 33].
This approach appears to have been successful in differentiating among species within a range of animal groups [28, 34, 35] including freshwater and marine fishes [36, 37].
Results on DNA barcoding show no evidence of cryptic species in C. The newly obtained sequences add to the database of freshwater fish DNA barcodes and in future will provide information relevant to identification of species.
The freshwater snakehead Channa striata (Bloch, 1793), from the family Channidae, has a wide range of habitats ranging from rivers, swamps, ponds, canals, lakes, and land of rice fields.
The aim of this study is to characterize the pattern of population divergence of C.
striata in order to provide a spatial conservation planning in different localities and investigate the possible hidden cryptic taxa of C.
To date, the exact taxonomic status at the level of species of the genus of Channa remains unclear as C.
striata was placed as one of the “species complexes” under this mentioned genus .
That's based on a pretty rough summation of the historical data.
Barclays' Jonathan Glionna offers a much more granular look at the history of PEs and future returns in a note to clients this week. "The same is true at 16x and 18x earnings: forward returns have always been positive over a one-year horizon," Glionna notes.
This supports the claim of historical coalescence of C. Ecological heterogeneity caused high phenotypic variance and was not correlated with genetic variance among the populations.