章节大纲

  • Differences in the yearly survival rate of Ammodytes sp. in Mutsu Bay are shown.


















    ·  The year 1999 demonstrated the highest density of larvae in three years but showed the fewest surviving juveniles. In other words, this signifies that there was large mortality between larval and juvenile periods. The slope of the line in the figure is small, so 1999 exhibited a low survival rate.

    ·  In contrast, 2001 demonstrated a high survival rate.