アマノリ属Porphyraの殻胞子付着材としての粉体の応用

概要

論文の詳細を見る
In tank culture of laver Porphyra, powdered materials were experimentally applied to substratum for germination of conchospore, instead of netting twine. As the first screening objects, 17 materials were picked, adequate sizes of these materials were determined to make the most uniformly suspended state in a culture vessel. Laver germlings grown on the powdered material were cultured under definite aritficial conditions using 2 liter vessel. Screeing of powdered materials as substratum was performed by comparison of the values of diurnal growth rate calculated from final thallus area of germlings. Under the most uniformly suspended state of powdered material, the laver genmlings showed the same growth rate as the cuture using netting twine and the hightest growth ratc was obtained in the case using powdered material substrata having rough surface and high density. As the rresult, in respect of germination of conchospores and growth of thallus, powder made from pearl-oyster shells were suitable for substratum; in respect of suppression of contamination by other algae, bone bladk and charcoal powder were suitable. Finally, pearl-oyster shell dyed black showed the best result, gremlings grown on them grew into young plants 5-10mm in length and 2-3mm in width for 30 days.
日本水産學會の論文