PROBLEM TO BE SOLVED: To provide an apparatus for cultivating Porphyra species that is independent of the natural environment and excellent in workability and productivity.SOLUTION: In the apparatus for cultivating Porphyra species, the conchospore or archespore of Porphyra species is attached on a leaf body holding member formed in a yarn, string, rod, or belt shape to germinate from the conchospore or an archespore and grow a leaf body. The apparatus includes a cultivation liquid feeding part, a cultivation tank in which a cultivation liquid supplied from the cultivation liquid feeding part flows from an upstream side to a downstream side, and space adjustment parts provided on both sides of the cultivation tank from the upstream side to the downstream side and adjusting intervals between two or more leaf body holding members by freely detachably holding both ends of the leaf body holding member.【課題】自然環境に左右されず、作業性や生産性に優れたアマノリ類の栽培装置を提供することを目的とする。【解決手段】糸状、紐状、棒状又は帯状に形成された葉体保持部材に、アマノリ類の殻胞子又は原胞子を付着させ、殻胞子又は原胞子から発芽させて葉体を生育するアマノリ類の栽培装置であって、栽培液供給部と、栽培液供給部から供給される栽培液を上流側から下流側に流下させる栽培槽と、栽培槽の両側部の上流側から下流側にかけて形設され葉体保持部材の両端部を着脱自在に保持して複数の葉体保持部材の間隔を調整する間隔調整部と、を備えている。【選択図】図１
