Dynamics of the Eukaryotic Microbial Community at the Breeding Sites of the Large Yellow Croaker Pseudosciaena crocea in the Southern East China Sea

• Published in: Journal of Ocean University of China Vol. 21; no. 3; pp. 789 - 800
• Main Authors: Zhou, Shouheng, Zheng, Shizhan, Lv, Tianying, Yang, Wen, Lukwambe, Betina, Nicholaus, Regan, Li, Chenghua, Zheng, Zhongming
• Format: Journal Article
• Language: English
• Published: Heidelberg Science Press 01.06.2022; Springer Nature B.V; Department of Aquculture Technology,School of Aquatic Sciences and Fisheries Technology,University of Dar es Salaam,Dar es Salaam 999132,Tanzania%School of Marine Sciences,Ningbo University,Ningbo 315211,China; School of Marine Sciences,Ningbo University,Ningbo 315211,China%School of Marine Sciences,Ningbo University,Ningbo 315211,China; Department of Natural Sciences,Mbeya University of Science and Technology,Mbeya999068,Tanzania
• Subjects: Baits; Blooms; Breeding seasons; Breeding sites; Community structure; Cyanobacteria; Distribution; Distribution patterns; Earth and Environmental Science; Earth Sciences; Ecological research; Environmental factors; Fish; Fisheries; Fishing bait; Fungi; Heterogeneity; Juveniles; Meteorology; Microbiomes; Microorganisms; Next-generation sequencing; Oceanography; Oceans; Offshore; Patchiness; Phosphorus; Phytoplankton; Potential resources; Pseudosciaena crocea; Reserves; rRNA 18S; Spatial distribution; Spatial heterogeneity; Surface water; Variation; Water analysis; Water sampling; East China Sea; 18S rRNA gene sequencing; southern East China Sea; variation partitioning analysis; eukaryotic microbes
• ISSN: 1672-5182; 1993-5021; 1672-5174
• DOI: 10.1007/s11802-022-5064-5

Clarifying eukaryotic microbial spatial distribution patterns and their determinants is an important idea in ecological research. However, information on the distribution patterns of eukaryotic microbial community structures (EMCSs) within oceans remains unclear. In this study, surface water samples from the southern East China Sea (SECS) were collected to investigate the spatiotemporal variation in EMCSs by using 18S rRNA high-throughput sequencing technology and the impact of this variation on Pseudosciaena crocea during the breeding season. The results indicated that the distribution patterns of the eukaryotic microbial community structure were different among the Sansha Bay, Mindong and Wentai reserves and the offshore East China Sea. In addition, there were notable potential effects of EMCSs on fishery activities. The variation partitioning analysis showed the environmental and spatial factors caused 53.4% of the variation in the EMCSs, indicating that spatially structured environmental factors were the key determinants of the EMCSs spatial heterogeneity in the SECS and may have contributed to the general distribution of P. crocea . In addition, all the environmental factors were the main factors driving the distribution of eukaryotic microbes except for total phosphorus. Furthermore, it was noted some phytoplankton such as Poterioochromonas and Rhizophydium of fungi in Sansha Bay can effectively prevent Cyanobacteria blooms. Chrysophyceae are natural high-quality baits for juvenile fish distributed in Sansha Bay, Mindong and Wentai reserves. This study provides a part of the insight into potential eukaryotic community distributions in large water bodies and how they are affected by environmental factors.