NGS	Next-generation sequencing
NextRAD	NGS-based restriction-site-associated DNA
RAD-seq	Restriction site-associated DNA sequencing
DS	Deep sea
SS	Shallow sea
ME	Meghna estuary
MR	Meghna river
SKR	Surma–Kushiara river
LPR	Lower Padma river
UPR	Upper Padma river
LJR	Lower Jamuna river
UJR	Upper Jamuna river
AMOVA	Analysis of molecular variance
PCA	Principal component analysis
DAPCs	Discriminant analysis of principal components
NJ	Neighbor-joining
QDFA	Quadratic discriminant functional analysis
SNP	Single nucleotide polymorphism