抄録
We investigated the effect of Fe(II) for the growth of Ulva prolifera O. F. Müller in outdoor tanks cultivation in deep seawater (DSW) by adding bags containing chipped Fe(II), “Ion Culture” (Tôyô glass co. Ltd., Tokyo). The daily growth rates of U. prolifera in only DSW (control culture) were 23.3 % (winter) to 71.0 % (summer), however, it reached 28.1 % in DSW with 30 g “Ion Culture” (winter) to 100.5 % in DSW with 120 g “Ion Culture” (summer). The concentration of Fe(II) rose in proportion to quantity of “Ion Culture”. These results indicated that Fe(II) dissolved from “Ion Culture” stimulated growth of U. prolifera.
