The green rectangle increases in size with higher fishing skill level.
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緑色のバーは、釣りスキルが上がるにつれて大きくなります。
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The upgraded fishing rods (''i.e.'', [[Fiberglass Rod]] and [[Iridium Rod]]) do '''not''' affect the bar size. However, using the [[Training Rod]] does affect the bar size; it always gives you a bar size equivalent to level 5 fishing, even after passing level 5.