IMPLANTATION MATERIAL FOR SHELLFISH EGGS, AND SPAT COLLECTION METHOD FOR SHELLFISH AND CULTIVATION METHOD THEREFOR, USING SAME

摘要

According to the present invention, there is provided a method of manufacturing a carbon steel sheet, comprising the steps of: forming an iron member containing metal iron and a carbon member serving as a confluent member; contacting the carbon member with at least a part of the metal iron in the iron member, The efficiency is greatly stabilized and the installation time of the confluent material can be obtained as the confluent material of the shellfish which does not depend on the spawning period or the time of the occurrence of the attachment larvae.