total drift
1.(2) The low level of gene flow (Nm=0.64) could not prevent genetic drift to cause the gene differentiation between populations. The genetic diversity between populations attributed to the genetic diversity of total populations is small (Gst=0.303), and the great part is accumulated within populations (Hs/Dst=2).
3.Based on the analysis of the fishing capture monitoring data, which obtained from 5 deep water drift net fishery resources investigation boats from April 1998 to March 2001, the results indicated that the Psenopsis anomala which took accounted for 8.68%~27.16% of the total catch, was one of the three preponderant species in the northern part of the East China Sea and southern part of the Yellow Sea. (Branchiostegidac ranked first, followed by the Psenopsis anomala or Argyrosonus altetnate).The yearly quantity distribution concentrated in Summer and Autumn, and reached the peak in latter summer to early Autumn.
