Novel Device and Method for Fast Water Change in the Hatchery Culture of Pacific Oyster Larvae
文献类型： 外文期刊
作者： Li, Zhuang 1 ; Wei, Lei 1 ; Cai, Zhongqiang 2 ; Li, Jiarong 1 ; Chen, Man 2 ; Li, Guangbin 1 ; Gai, Chaowei 1 ; Guo, Wen; 1 ;
作者机构： 1.Ludong Univ, Sch Agr, Yantai 264025, Peoples R China
2.Chinese Acad Fishery Sci, Changdao Enhancement & Expt Stn, Changdao 265800, Peoples R China
3.Marine Biol Inst Shandong Prov, Qingdao 266104, Shandong, Peoples R China
关键词： Crassostrea gigas; fast water change; new device; hatchery culture; Pacific oyster larvae
期刊名称：PHILIPPINE AGRICULTURAL SCIENTIST （ 影响因子：0.25； 五年影响因子：0.388 ）
ISSN： 0031-7454
年卷期： 2018 年 101 卷 3 期
页码：
收录情况： SCI
摘要： During the hatchery culture process of Pacific oyster larvae, larval metabolites and the accumulation of dead larvae and microalgae contribute to an increase in the organic content of the water, leading to the proliferation of bacteria and deterioration in water quality. Frequent seawater changes are therefore necessary for the successful hatchery culture of oyster larvae. In order to shorten the time taken for water changes and to decrease larval loss and mortality, we designed a method for fast water change by manufacturing a new, specialized device. One large cage was split into six areas with six sieves that could be used to change water synchronously. Two operators coordinated the transport of two sieves of larvae to the new pond while keeping the remaining four sieves filtering. We also investigated the advantages of the new method by comparing it with two traditional methods of changing water. It was found that the new method has the higher efficiency and higher larva recovery rate than the two traditional methods. This new device and operation process have great application prospects in hatchery culture of Pacific oyster larvae.
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