[Niche text, this is a novel that tells the story of marine aquaculture in the early 80s, raising kelp in the early stage, engaging in fishing rows, catching eel fry, abalone farming ......] returned to the small island in 1983, Li Duoyu scooped up a net of big yellow croaker, thinking that he could make a lot of money, but he was slapped in the face, because in this era, the purchase price of a pound of large yellow croaker was only four cents. And in this era when there is no even preservation technology, Li Duoyu took the lead in raising kelp that everyone is not optimistic about, and then raised blue crabs......------ the background of the story is in the 80s, if you plan to understand, you can come in and take a look, take a look, and the author said that the background of this novel is pure fiction, if there are similarities, it may be true.