论文部分内容阅读
光合细菌（Photosynthetticbactera）是一类组份较全且营养价值较高的细菌。在缺氧弱光条件下，具有处理低分子有机物、净化水质等显著功效。本研究利用了光合细菌所具有的独特生理功能和生态习性，在海湾扇贝人工升温育苗过程中，以单胞藻为基础饵料适当添加光合细菌，增强了海湾扇贝整体营养水平和改善了育苗水体生态环境条件，促进了亲贝性腺发育，提高了幼虫生长率。亲贝性腺指数平均日增长达2％以上，幼虫日平均增长13．85μm，同时，光合细菌可降低育苗水体中的氨氮，提高溶解氧，明显改善了水体环境。
Photosynthettic bacteria are a class of bacteria that are more nutritious and of higher nutritional value. Under hypoxic conditions, with low molecular weight organic matter, water purification and other significant effects. In this study, the unique physiological functions and ecological habits of photosynthetic bacteria were used. During the process of artificial raising of temperature in bay scallop, photosynthetic bacteria were added with monocytogenetic bait to enhance the overall nutrition of Gulf scallop and improve the ecology of nursery water Environmental conditions, promote the progenitor gonadal development, increased larval growth rate. The average daily growth rate of gonad index was more than 2%, while the larvae increased by an average of 13.85μm. At the same time, photosynthetic bacteria could reduce the ammonia nitrogen in raising seedling water, increase dissolved oxygen, and obviously improve water environment.