求翻译：渔获平均叉长有随钓钩深度增加而增大的趋势，在较浅处（128~162m），钓获的剑鱼叉长分布均值最小；在较深处（268~272m），钓获的剑鱼叉长分布均值最大。是什么意思？

Average fork length of fish with hook depth with the increase of the trend in the shallower (128 ~ 162m), sword, spear fishing by the mean minimum length distribution; in a relatively deep (268 ~ 272m), fishing was the sword spear length distribution mean the most.

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The fishing attains the average fork length to have along with fishes the tendency which the hook depth increases increases, is comparing the shallow part (128~162m), fishes the sawshark fork length distribution average value which attains to be smallest; Is comparing the deep place (268~272m), fish

Catches average there are with forks, reel depth and increased with the increasing trend in relatively shallow (128~162m), the sword Harpoon fishing long means minimum; deeper (268~272m), the sword Harpoon long means the greatest fishing.

Catches average there are with forks, reel depth and increased with the increasing trend in relatively shallow (128~162m), the sword Harpoon fishing long means minimum; deeper (268~272m), the sword Harpoon long means the greatest fishing.