Vertical and horizontal biogeographic patterns and major factors affecting bacterial communities in the open South China Sea

To improve the overall understanding of the fish diversity and spatial patterns of major coral reefs in the South China Sea, fish assemblage composition, dominant species, biodiversity indices, and multivariate analysis of community structure were reported for four major coral reefs based on hand-line survey data in May and September 2018. A total of five orders, 21 families, 45 genera and 121 species of fish were recorded with Perciformes (78.5%) being the most diverse. The highest number (5) of dominant species was found near Chenhang Island while the lowest (2) number was detected at Zhubi Reef. The highest abundance index (7.21) occurred at Zhubi Reef, while the Shannon–Wiener diversity (4.80), Pielou’s evenness (0.81), and Simpson’s dominance (0.95) indexes were all highest at Qiliangyu Island. Based on cluster analysis and non-metric multi-dimensional scaling (NMDS), fish communities varied more spatially than seasonally. Our results led us to hypothesize that the habitat complexity and level of anthropogenic disturbance were the main factors affecting the composition of reef-dwelling fish on each coral reef. Topography was likely responsible for most variation in the spatial pattern of fish diversity.

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Numerical assessment of factors affecting nonlinear internal waves in the South China Sea

Progress In Oceanography ◽

10.1016/j.pocean.2013.03.006 ◽

2014 ◽

Vol 121 ◽

pp. 24-43 ◽

Cited By ~ 14

Author(s):

Qiang Li

Keyword(s):

South China Sea ◽

Internal Waves ◽

South China ◽

The South China Sea ◽

The South ◽

Factors Affecting ◽

Nonlinear Internal Waves ◽

China Sea ◽

Numerical Assessment

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Monsoon-driven dynamics of environmental factors and phytoplankton in tropical Sanya Bay, South China sea

Oceanological and Hydrobiological Studies ◽

10.2478/s13545-012-0007-1 ◽

2012 ◽

Vol 41 (1) ◽

Cited By ~ 3

Author(s):

Mei-Lin Wu ◽

Yan-Ying Zhang ◽

Jun-De Dong ◽

Chuang-Hua Cai ◽

You-Shao Wang ◽

...

Keyword(s):

Environmental Factors ◽

South China Sea ◽

South China ◽

Phytoplankton Community ◽

Northern South China Sea ◽

Factors Affecting ◽

China Sea ◽

Sanya Bay ◽

Monsoon Winds ◽

Physical And Chemical

AbstractIn this work, we analyze environmental (physical and chemical) and biological (phytoplankton) data obtained in Sanya Bay during four cruises, carried out in January, April, August, and October. The main objective of this study was to identify the key environmental factors affecting phytoplankton structure and bacterioplankton in the bay. Results suggest that spatial variations in the phytoplankton community and bacterioplankton biomass are the result of nutrients. Temporal variation in the abundance of bacterioplankton and phytoplankton are affected by a combination of physical and biological factors, such as temperature and nutrients. The silicate, phosphate, and nitrogen phytoplankton require for growth may be co-limited. Monsoon winds (a southwestern monsoon during summer and a northeastern monsoon during winter) play important roles in controlling the phytoplankton community and bacterioplankton abundance in Sanya Bay, northern South China Sea.

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Temporal and Spatial Diversity of Bacterial Communities in Coastal Waters of the South China Sea

PLoS ONE ◽

10.1371/journal.pone.0066968 ◽

2013 ◽

Vol 8 (6) ◽

pp. e66968 ◽

Cited By ~ 18

Author(s):

Jikun Du ◽

Kai Xiao ◽

Li Li ◽

Xian Ding ◽

Helu Liu ◽

...

Keyword(s):

South China Sea ◽

South China ◽

Coastal Waters ◽

Bacterial Communities ◽

Spatial Diversity ◽

The South China Sea ◽

The South ◽

China Sea ◽

Temporal And Spatial

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Effects of coastal upwelling on picophytoplankton distribution off the coast of Zhanjiang in South China Sea

Oceanological and Hydrobiological Studies ◽

10.2478/s13545-014-0143-x ◽

2014 ◽

Vol 43 (3) ◽

Cited By ~ 2

Author(s):

Mei-Lin Wu ◽

You-Shao Wang ◽

Dong-Xiao Wang ◽

Jun-De Dong

Keyword(s):

South China Sea ◽

South China ◽

Coastal Upwelling ◽

Northern South China Sea ◽

Euphotic Zone ◽

Horizontal Gradient ◽

Vertical Temperature ◽

The West ◽

Factors Affecting ◽

China Sea

AbstractCoastal upwelling occurred along the west coast of Guangdong in the northern South China Sea during the summer of 2006. The effects of upwelling on the vertical and horizontal distributions of Prochlorococcus and Synechococcus were investigated. A distinct vertical temperature difference between the surface water and water at a depth of 30 m was observed in the coastal upwelling region. There was a clear spatial variability of temperature, and an increasingly obvious horizontal gradient was created from the coast to offshore waters. Picophytoplankton communities observed from the coast to offshore waters were significantly different. In the coastal upwelling waters, the picophytoplankton community was dominated by Synechococcus within the euphotic zone. Prochlorococcus dominated the picophytoplankton community in the euphotic zone in the non-upwelling region. This difference in the picophytoplankton community structure was due to different hydrodynamics. The results of canonical correspondence analysis demonstrate that temperature, salinity, and phosphate concentration may be important factors affecting the distribution of Prochlorococcus and Synechococcus.

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