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Article

Effects of Artificial Reefs on Phytoplankton Community Structure in Baiyangdian Lake, China

1
Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, No. 63 Chifeng Road, Yangpu District, Shanghai 200092, China
2
Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239, Siping Road, Shanghai 200092, China
*
Author to whom correspondence should be addressed.
Academic Editors: Renata Dondajewska-Pielka and Agnieszka Budzyńska
Water 2021, 13(13), 1802; https://doi.org/10.3390/w13131802
Received: 15 May 2021 / Revised: 23 June 2021 / Accepted: 27 June 2021 / Published: 29 June 2021
(This article belongs to the Special Issue Lake Ecology and Restoration)
The habitat and feeding environment of freshwater fish in freshwater lakes have been destroyed, with the problem of miniaturization and simplification of catches being serious. An artificial reef is an effective technical measure to protect and proliferate offshore fishery resources, but little research has been conducted on its application in freshwater lakes. A small artificial reef for freshwater lakes was designed according to the water depth of the lake and the habits of benthic fish. The artificial reef is composed of biomass modules, each of which is 900 × 120 mm. The community structure of phytoplankton around the artificial reef and its adjacent waters was studied. The results showed that 77 species from seven phyla were identified, with a high number of species from the Chlorophyceae. In terms of density composition, the density of cyanobacteria decreased month by month, while the phylum Chlorophyta and Cryptophyta increased first and then decreased. As for biomass composition, Chlorophyta and Cryptophyta increased first and then decreased. RDA analysis showed that water temperature, dissolved oxygen, and total phosphorus were the main influencing factors. To sum up, the artificial reef can improve the algae phase in the surrounding water column, inhibit the growth and reproduction of cyanobacteria to a certain extent, and have a significant enrichment and promotion effect on diatoms. Artificial fish reef affects the phytoplankton community structure of the surrounding water bodies mainly through the absorption of phosphorus nutrients. Artificial reefs can be popularized and applied in freshwater lakes to provide foraging and shelter for benthic fish in the lake. View Full-Text
Keywords: algae; freshwater ecosystems; artificial reefs; Baiyangdian Lake algae; freshwater ecosystems; artificial reefs; Baiyangdian Lake
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MDPI and ACS Style

Zhu, H.; Liu, X.; Cheng, S.; Wang, J. Effects of Artificial Reefs on Phytoplankton Community Structure in Baiyangdian Lake, China. Water 2021, 13, 1802. https://doi.org/10.3390/w13131802

AMA Style

Zhu H, Liu X, Cheng S, Wang J. Effects of Artificial Reefs on Phytoplankton Community Structure in Baiyangdian Lake, China. Water. 2021; 13(13):1802. https://doi.org/10.3390/w13131802

Chicago/Turabian Style

Zhu, Hao, Xingguo Liu, Shuiping Cheng, and Jie Wang. 2021. "Effects of Artificial Reefs on Phytoplankton Community Structure in Baiyangdian Lake, China" Water 13, no. 13: 1802. https://doi.org/10.3390/w13131802

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