文章摘要
三种水质调控方式下刺参池塘初级生产力的周年变化
The annual change of primary productivity in Apostichopus japonicus Liao ponds by the three water quality regulations
投稿时间:2019-05-16  修订日期:2019-11-10
DOI:
中文关键词: 海参  初级生产力  水层  三种水质调控方式  黑白瓶法
英文关键词: Apostichopus japonicus Liao  primary productivity  methods of water quality control  Jet water mixing (JWM)  submerged aerator (SA)
基金项目:辽宁省科学计划项目(2018104009)、辽宁省“兴辽英才”项目(XLYC1808029)、大连市第二批领军人才资助项目。
作者单位E-mail
孙广伟 大连海洋大学 水产与生命学院 452065865@qq.com 
周玮 大连海洋大学 水产与生命学院  
党子乔 全国水产技术推广总站 中国水产学会  
魏亚南 大连海洋大学 水产与生命学院  
林青 大连海洋大学 水产与生命学院  
雷兆霖 大连海洋大学 水产与生命学院  
陈济丰 大连海洋大学 水产与生命学院  
郭超 大连海洋大学 水产与生命学院  
张东升 大连海洋大学 水产与生命学院大连海洋大学农业部北方海水增养殖重点实验室 zhangds0415@126.com 
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中文摘要:
      本研究通过对自然纳潮池塘、微孔曝气池塘、养水机池塘不同水层的初级生产力及其相关参数的研究,分析养水机对初级生产力的影响。结果表明:三种水质调控方式的池塘,初级生产力年均值、P/R值均以养水机池塘最高,微孔曝气池塘次之,自然纳潮池塘最低。养水机池塘、微孔曝气池塘、自然池塘的初级生产力年均值分别为(6.22±0.54gO2m-2d-1)(5.37±0.60gO2m-2d-1)、(4.69±0.53gO2m-2d-1)。三种水质调控方式下,养水机池塘30~50cm水层和50~100cm水层初级生产力差异不显著,而微孔曝气池唐和自然纳水池塘这两个水层之间初级生产力差异显著(p<0.05),且养水机池塘50~100cm的水层初级生产力显著高于微孔曝气和自然池塘(p<0.05)。结论:养水机能显著提高刺参池塘50cm以下水层的初级生产力,缩小上层和下层初级生产力之间的差距,从而提高了池塘水体总初级生产力,为刺参提供较高的饵料资源和加快池塘物质循环提供保障。
英文摘要:
      The traditional water quality regulations to Apostichopus japonicus Liao ponds could not destroy thermocline and inhibit macroalgae growth, which result in poor water quality and Apostichopus japonicus Liao growing poorly and even death. Jet water mixing (JWM) can break down thermocline and inhibit the growth of macroalgae. To study the purification efficiency and mechanism of JWM, the primary productivity in the ponds with a jet water mixer (JWM), a submerged aerator (SA) or without any artificial mixing (control) were studied. The results showed that the annual average primary productivity and P/R values of the pond with JWM were the highest, followed by SA pond, and the lowest in the pond without any artificial mixing (control). The mean annual primary productivity in the ponds with JWM, SA and Control pond were 6.22 ± 0.54 g O2m-2d-1, 5.37 ± 0.60 g O2m-2d-1 and 4.69 ± 0.53 g O2m-2d-1, respectively. The primary productivity in the ponds decreased with the depth of water. There was no significant difference in primary productivity between 30-50cm water layer and 50-100cm water layer in JWM pond, while there was significant difference between the SA pond and Control pond (p < 0.05). In addition, the primary productivity of the water layer of 50-150cm in JWM pond was significantly higher than that of the SA and Control pond (p < 0.05) from June to September. Conclusion: compared with SA facility, JWA can improve significantly the primary productivity of the lower water layer, which can significantly improve the total primary productivity of the pond and facilitate the rapid circulation of the pond substances.
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