海水围塘内贝类大量死亡俗称“倒塘”,是近年来海水养殖中较为常见的一种现象,不仅会造成严重的养殖损失,而且会严重污染围塘底(水)质,影响其他养殖品种的生长和效益。1.贝类死亡原因分析(1)围塘底质老化由于对围塘缺少整修、清淤,且因多种贝类与对虾、梭子蟹轮养、混养,使围塘 A large number of dead sea shellfish shellfish commonly known as “inverted pond”, in recent years mariculture is a common phenomenon, not only will cause serious losses of culture, and will pollute the pond bottom (water) quality, affecting other cultured species Growth and effectiveness. 1. Shellfish cause of death analysis (1) pond sediment aging Due to the lack of renovation pond Wai, dredging, and because of a variety of shellfish and shrimp, shuttle crab breeding, polyculture, the pond