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Purification of Intensive Shrimp Farming Effluent by Gracilaria Coupled with Oysters

文献类型： 外文期刊

作者： Li, Junjing 1 ; Xu, Yu 2 ; Deng, Yunlong 1 ; Hu, Xiaojuan 2 ; Su, Haochang 2 ; Wen, Guoliang 1 ; Cao, Yucheng 1 ;

作者机构： 1.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China

2.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China

3.Minist Agr & Rural Affairs, Key Lab South China Sea Fishery Resources Exploita, Guangzhou 510300, Peoples R China

4.Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Peoples R China

5.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Peoples R China

6.Sanya Trop Fisheries Res Inst, Sanya 572018, Peoples R China

关键词： sustainability; purification; macroalgae; Crassostrea hongkongensis

期刊名称：FISHES （ 影响因子：2.4； 五年影响因子：2.4 ）

ISSN：

年卷期： 2025 年 10 卷 4 期

页码：

收录情况： SCI

摘要： In this study, we explored the ability of Gracilaria vermiculophylla coupled with Crassostrea hongkongensis to purify aquaculture effluent by analysing the purification of intensive shrimp farming effluent using G. vermiculophylla under different environmental conditions. After determining the optimal conditions, we further investigated the capability of the G. vermiculophylla and oyster coupling in intensive shrimp farming effluent purification. The shrimp farming density was 200 individuals per cubic metre (equivalent to 0.2 individuals per litre). The optimal environmental parameters were as follows: oyster biomass of 4.5 kgm-3, G. vermiculophylla biomass of 2 kgm-3, water temperature of 25-30 degrees C, and salinity of 15-30 parts per thousand; the total inorganic nitrogen, PO43--P, total nitrogen, and total phosphorus removal rates were 59.56%, 97.43%, 63.67%, and 76.25%, respectively, with G. vermiculophylla increasing in weight by 31.01%. For every 1 kg increase in the dry weight of G. vermiculophylla, 36.89 g of N and 12.40 g of P could be absorbed from the effluent. Our findings indicate that the coupling of G. vermiculophylla with oysters greatly contributed to the purification of effluent from intensive shrimp farming and can, thus, be used for treating intensive shrimp farming effluent.

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