and lock are good; also for the future would be using a stylus (available probably from the police or elsewhere) to scribe identifying info on electronics
and some of the more valuable tools. If your dock has power, you might even be able to set up a multi-setting timer for lights/radio on the boat. Anything that will slow the thieves down or raise questions in their mind just might tip the balance in making them pick an easier target or rush their job.
Unfortunately, the method of using a small boat to access your dock would also work for thieves hitting a marina, if marina security
isn't on the ball.
Then, if it were my dock, I might have been tempted to set up a gibbet shoreside with a hangman's noose, hang a plastic skeleton from it, and attach a sign, "Death to Pirates!"