ACCRETION PROMOTION MATERIAL OF EGG AND LARVA OF SHELLFISH AS WELL AS SEEDLING COLLECTION METHOD AND AQUACULTURE METHOD OF SHELLFISH USING THE SAME

PROBLEM TO BE SOLVED: To provide accretion promotion materials of eggs and larvae of shellfish in which the safety is high and the economy is superior, and at the same time, a generation rate of a nutrient source is fast, the seedling collection efficiency is extremely high and stabilized, and furthermore, the installation time to environment is not affected by the spawning time.SOLUTION: Accretion promotion materials of eggs and larvae of shellfish comprises a net for separation between unnecessary deposits and shellfish, mantle materials serving as egg laying parts, and an iron delivery part containing leaf mold, carbon materials and iron materials, in which at least a portion of the carbon materials and the iron materials is brought into contact with each other.SELECTED DRAWING: Figure 10 【課題】安全性が高く、経済性に優れると同時に、栄養源の生成速度が速く、採苗効率が極めて高く安定し、その上、環境への設置時期も産卵時期に左右されない、貝類の、卵および幼生の付着成長促進材を提供する。【解決手段】不要付着物と貝類との分離用のネット部と、着卵部となる外套材と、腐葉土、炭素材および鉄材を含む鉄供給部とからなり、該炭素材と該鉄材の少なくとも一部を接触させる構造とする。【選択図】図１０