| 大型海藻对海水水族箱生态微宇宙结构及稳定性的影响 |
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| 引用本文： | 钟逸云,郜晓峰,邢浩,刘炜,常佳楠,张建琳,何培民,孙彬.大型海藻对海水水族箱生态微宇宙结构及稳定性的影响[J].上海海洋大学学报,2022,31(2):421-432. |
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| 作者姓名： | 钟逸云 郜晓峰 邢浩 刘炜 常佳楠 张建琳 何培民 孙彬 |
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| 作者单位： | 上海海洋大学,上海海洋大学 海洋生态与环境学院,上海海洋大学 海洋生态与环境学院,上海海洋大学 海洋生态与环境学院,上海海洋大学 海洋生态与环境学院,上海海洋大学 海洋生态与环境学院,上海海洋大学 海洋生态与环境学院,上海海洋大学 海洋生态与环境学院 |
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| 基金项目： | 上海市海洋局科研项目(沪海科2015-02) |
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| 摘 要： | 稳定高效的多营养层级景观生态系统构建是近年来水族行业的发展热门，为探究海水水族箱在引入大型海藻后微宇宙生态系统结构和稳定性的变化，分别对不同处理组进行水质指标、浮游生物及细菌群落结构分析。结果表明：（1）有藻组水体溶解氧（DO）含量和pH上升趋势高于无藻组，并可维持亚硝态氮（NO2--N）含量在较低水平，实验结束时磷酸盐（PO43--P）及铵态氮（NH4+-N）含量显著低于无藻组（P < 0.05）。（2）有藻组细菌多样性及均匀度指数显著低于无藻组（P < 0.05）；浮游生物群落均匀度指数存在显著组间差异（P < 0.05）。（3）细菌群落结构分析结果显示，无藻及有藻组第一、二优势菌门均为变形菌门（Proteobacteria）、放线菌门（Actinobacteria），无生物对照组分别为变形菌门和厚壁菌门（Firmicutes）；各处理组浮游生物群落的第一优势门均为硅藻门（Bacillariophyta），至少占样品中浮游生物群落丰度的40%以上，第一优势属均为直链藻属（Melosira）。（4）CCA结果显示，无藻组微生物优势种丰度与营养盐含量呈正相关关系，与溶解氧（DO）及pH负相关，有藻组则相反。通过以上结果可推测，不同营养层级的微宇宙系统浮游生物及细菌群落组成不同，培养针叶蕨藻（Caulerpa sertularioides）能有效改善生态水族箱水质环境并影响水体微宇宙结构，有利于构建稳定高效并美观的海水景观生态系统。
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| 关 键 词： | 细菌 浮游生物 微宇宙 针叶蕨藻 生态水族箱 |
| 收稿时间： | 2021/2/18 0:00:00 |
| 修稿时间： | 2021/4/14 0:00:00 |
Effects of macroalgae on the ecological microcosm's structure and stability of aquarium |
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| ZHONG Yiyun,GAO Xiaofeng,XING Hao,LIU Wei,CHANG Jianan,ZHANG Jianlin,HE Peimin,SUN Bin.Effects of macroalgae on the ecological microcosm's structure and stability of aquarium[J].Journal of Shanghai Ocean University,2022,31(2):421-432. |
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| Authors: | ZHONG Yiyun GAO Xiaofeng XING Hao LIU Wei CHANG Jianan ZHANG Jianlin HE Peimin SUN Bin |
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| Institution: | Shanghai ocean university Marine Ecology and Environment,Shanghai ocean university Marine Ecology and Environment,Shanghai ocean university Marine Ecology and Environment,Shanghai ocean university Marine Ecology and Environment,Shanghai ocean university Marine Ecology and Environment,Shanghai ocean university Marine Ecology and Environment,Shanghai ocean university Marine Ecology and Environment,Shanghai ocean university Marine Ecology and Environment |
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| Abstract: | Construction of a stable and efficient multi-nutrient-level landscape ecosystems is a hotspot of the aquarium industry these years. In order to explore the changes in the structure and stability of the microcosmic ecosystem after the introduction of macroalgae in aquariums, water quality indicators, bacteria and plankton community structure analysis were carried out in different treatment groups. The results showed that: (1) The rising trend of DO and pH in the algae group was higher than that of the non-algae group, and the content of NO2--N could be kept at a low level. The content of PO43--P and NH4+-N was significantly lower than that of the non-algae group (P < 0.05). (2) The bacterial diversity and evenness index of the algae-group were significantly lower than that of the non-algae group (P < 0.05); the plankton community evenness index was highly different among three groups (P < 0.05). (3) Bacterial community structure analysis results showed that the first and second dominant bacteria phyla of the non-algae groups and algae-groups were Proteobacteria and Actinobacteria. The abiotic control-groups were Proteobacteria and Firmicutes. The first dominant phylum of plankton communities in each treatment group was Bacillariophyta, accounting for at least 40% of the abundance of plankton communities in the sample. The first dominant genus is Melosira. (4) CCA results showed that the abundance of dominant species in the non-algae group had a positive correlation with the nutrient content and was negatively associated with DO and pH while the algae-group was the opposite. The results indicate that the microcosmic system plankton and bacterial community composition of different nutritional levels are different. Cultivating Caulerpa sertularioides can effectively improve water quality of the ecological aquarium and affect the microcosmic structure, which helps to bulid a stable and efficient landscape ecosystem. |
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| Keywords: | Bacteria Plankton Microcosm Caulerpa sertularioides Ecological aquarium |
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