在对桑沟湾发生的栉孔扇贝大规模死亡现象进行现场调查研究基础上,从种质、生态、环境等方面对 死亡原因进行了分析。认为其主要原因是栉孔扇贝生殖盛期能量大量消耗,降低了抵抗外界不利环境和疾病的能 力;而种质退化、高温、养殖密度过高、附着生物及疾病也是造成扇贝大规模死亡的诱发原因。 Based on the field investigation on the large-scale death of scallop Chlamys farre in Sanggou Bay, the causes of death were analyzed from the aspects of germplasm, ecology and environment. The main reason is that chlamys farreri consumes a large amount of energy during its reproductive period and reduces the ability of resisting unfavorable environment and disease. Germplasm degradation, high temperature, high breeding density, and attachment of organisms and diseases are also caused by large-scale death of scallops the reason.