Conforming to the "at one with the sea" theme of the whale plaza and the undersea tunnel, when choosing fish to display, the NMMBA focuses on oysters and other marine creatures commonly raised in aquaculture. From these, the museum hopes people can realize that human life has in fact always been intimately connected to marine life.
如同親水廣場、海底隧道，在展示魚種的選擇上，海生館也以牡蠣等養殖魚種為展示重點，希望人們從中體會海洋與自己生活原來有著如此親密的關係。