Long Lines is a technology in Age of Empires III, available at the Dock once the Colonial Age is reached. It costs and . To research this technology, Gill Nets must be researched first. Long Lines increases gather rates for Fishing Boats and other fishing ships (like Caravels and Canoes) by 30%. This stacks with Gill Nets for +45% of normal fishing, and then any Home City Cards the player may have used.