渔具

Harpoons and other fishing tackle appear at 18,000 years ago, as do bone spear throwers, or atlatls.

26000年前使用。叉和其他具于18000年前出现，如梭标投掷棍“atlatl”。

In any navigation channel, the following activities are prohibited: abandoning sunken vessels, laying fishing implements impedimental to navigation, and cultivating aquatic plants.

在航道内不得弃置沉船，不得设置航具，不得种植水生植物。