化学物质诱导变态后紫贻贝稚贝的生长及存活

Growth and survival of the mussel Mytilus galloprovincialis post-larvae metamorphosed using different chemical compounds as inducers

在以往实验的基础上,跟踪调查了筛选出的化学诱导物质对紫贻贝(Mytilus edulis)幼虫变态后的生长和成活率的影响,并比较了其与相同条件下自然诱导物、微生物膜诱导后的稚贝的生长和成活率。实验结果表明,肾上腺素、苯肾上腺素、可乐宁、KCl和NH4Cl 5种化学物质均成功地诱导了该种幼虫的变态,其变态后稚贝同微生物诱导变态后的稚贝以相同的速度生长,且在培育过程中无死亡稚贝出现。因此,这些化学物质可作为该种养殖以及海洋防污染研究中幼虫变态的有效人工诱导物。

The growth and survival of Mytilus galloprovincialis post-larvae metamorphosed using different chemical compounds were investigated in this study to identify potential inducers in aquaculture and antifouling and biofouling researches. All tested chemical compounds including epinephrine, phenylephrine, clonidine, KCl and NH4 Cl induced larvae to metamorphose, and post-larvae metamorphosed using these compounds survived as juveniles and grew at the same rate as those from microbial biofilms. These chemical compounds, therefore, can be used as effective inducers of larval metamorphosis in aquaculture and antifouling and biofouling studies using juveniles.