Complex sentence: The vessel was found to be carrying an illegal catch of the protected Patagonian Toothfish, which was sold by the Australian government for 1.4 million dollars as part of the vessel confiscation.
Split into simpler sentences: The vessel was found to be carrying an illegal catch of the protected Patagonian Toothfish and the vessel and its catch were confiscated by Australian authorities. The catch was sold by the Australian government for 1.4 million dollars as part of the vessel confiscation.