I like how you contrasted the strengths and weaknesses between the species. Additionally, it is obvious you did a little outside research as well as just relying on the book. One thing that I think is missing from Galton’s theory is necessity and familiararity. Both of these species were chosen for this reason and I think it is an additional point that must be considdered. After all, If someone had chosen any salmon (let’s say Chum) how many people would have wanted to dedicate the effort to farming them. Probably not many. But take a species that people already enjoyed like the Atlantic Salmon and Sea Bass and everyone is suddenly on board.