Neptune's Bounty

Neptune's Bounty was the first fishery in Rapture (to date) and was used heavily by Frank Fontaine and his men to smuggle stock and equipment from the surface. As such, crates with the smuggler's icon (a black hand) still lie around, their inventory most likely stolen by the desperate citizens of Rapture . An interesting note: much of the visible stock consists of Bibles and crucifixes, putting into account the fact that Rapture is supposed to be an anti-religious and atheist society. Overall, Neptune's Bounty served as the place for the illegal business in Rapture, with the Fisheries used to disguise it.
Notably the greatest achievement of Neptune's bounty is the discovery of the sea slug-like parasite that produces ADAM. Caught by a fisherman it tried to bond to, Dr. Tenenbaum discovered that the man had amazingly gained the control of his hands again after a decade of being crippled. It was through Dr. Tenenbaum's experiments that ADAM, EVE, Plasmids and Gene tonics came to existence in Rapture.