If you are just starting Pirate 101 I have found one of the easiest ways to get gold (without all that pesky farming and fighting) is to find a treasure chest and open it. Once you open the treasure chest you have one of 2 choices.
1) Wait for another chest to manifest (which takes a little time).
2) Port to a different realm and a new treasure chest will be in the exact same spot you ported from...open it and get gold, again.
Easy gold, just takes a little bit of time to collect it .