Nope. I paid the captain 8,000 pesos and the fish sold for something north of 4,000.
The captain later got pissed and told me that I can't sell fish anymore and that they should go to him. The day prior I gave the guy an extra $200 USD to go an extra 30 miles offshore and then gave him a 1,500 peso tip along with about 300lbs of fish. He said that I shouldn't consider fish as part of the tip.
First off 1,500 pesos would have been around $120 and second when he is selling the fish (which he did) and making $200-400 on it, well you get the point. It isn't like sharing some fish for them to take to their families and eat.
Last time I charter him, which is unfortunate.