[PROBLEMS] Achieving sufficient oxygen concentration and feed amount necessary for growth, allowing scallops to grow into large shells with less mortality than before, and reducing labor and cost required for replacement / cleaning of seedling equipment, culture culm etc. A scallop cultured culm that can suppress the deterioration of the water quality environment caused by washing sewage such as seedling containers and cultured culm. An adhesion chamber (11a-11e) is formed in a first space in which adhesion nets (10a-10e) for adhering scallop larvae are formed, and a second space is arranged continuously below the first space. The growth chambers 12a to 12e having the bottom nets 21 to 25 that catch the juvenile shells that have fallen from the adhesion nets 10a to 10e, and the side nets 2a to 2c that continuously cover the side surfaces of the adhesion chambers 11a to 11e and the growth chambers 12a to 12e. A plurality of rearing units 1a to 1e having 2e are connected in the vertical direction, and a lid net 20 is disposed on the upper side of the uppermost rearing unit 1a, and the lid net 20, the bottom nets 21 to 25, and the side nets 2a to 2e are in the sea. An antifouling film that suppresses the adhesion of organisms and dust is formed. [Selection] Figure 1【課題】成長に必要な十分な酸素濃度及び餌料量が実現でき、ホタテを従来よりへい死も少なく大きな貝に育成できるとともに、採苗器・養殖篭等の交換・洗浄に要する労力とコストを削減でき、採苗器・養殖篭等の洗浄汚水による水質環境の悪化を抑制可能とするホタテ用養殖篭を提供する。【解決手段】ホタテの稚貝を付着させる付着網１０ａ～１０ｅが収納された第１空間が構成する付着室１１ａ～１１ｅと、第１空間の下に連続して配置された第２空間であって、付着網１０ａ～１０ｅから落下した稚貝を受け止める底網２１～２５を有する育成室１２ａ～１２ｅと、付着室１１ａ～１１ｅと育成室１２ａ～１２ｅの側面を連続して覆う側網２ａ～２ｅとを備える育成ユニット１ａ～１ｅを上下に複数個連続し、最上段の育成ユニット１ａの上側に蓋網２０を配置し、蓋網２０、底網２１～２５及び側網２ａ～２ｅに海中生物及びゴミの付着を抑制する防汚被膜が形成されている。【選択図】図１
