PROBLEM TO BE SOLVED: To provide a method of cultivating algae capable of efficiently carrying out the culture of algae at low cost, the culture being carried out in the vicinity of the surface of the sea.SOLUTION: In a method of cultivating algae, there are carried out: a germ cell attaching step of arranging a cultivating device, provided with an attachment part to which germ cells of algae can be attached, on the bottom of a water tank with the attachment part facing upward, and putting the germ cells of algae in the water tank to attach to the attachment part and an undersea cultivating step of installing the cultivating device with the germ cells of algae attached thereto in the vicinity of the surface of the sea with support by a porous sheet body having a plurality of pores so that the attachment part faces upward and cultivating the algae.COPYRIGHT: (C)2013,JPO&INPIT【課題】海面付近で行う藻類の養殖を効率よく且つ低コストで行うことができる藻類の育成方法を提供することを課題としている。【解決手段】本発明は、藻類の生殖細胞が付着可能な付着部が備えられた育成具を、前記付着部が上面となるように水槽底面に配置し、藻類の生殖細胞を前記水槽に入れて前記付着部に付着させる生殖細胞付着工程と、前記生殖細胞が付着した前記育成具を、複数の孔を有する多孔シート体に、前記付着部が上を向くように支持させることによって海面付近に設置して、前記藻類を育成する海中育成工程とを実施する。【選択図】 図2
