scholarly journals Geographic Variation for the Composition of Parrotfish in the South China Sea

Author(s):  
Qiumei Quan ◽  
Yong Liu ◽  
Teng Wang ◽  
Chunhou Li

Abstract Based on the key ecological processes of parrotfish in coral reefs, we compiled species presence-absence data across 51 sites in the South China Sea to identify the distribution and composition of parrotfish and explore the relationship between species distribution and environmental factors, and 50 species (the Pacific: 57 species) of parrotfish were record. Nansha islands had the highest abundance with 41 parrotfish species. Nestedness analysis indicated parrotfish community had statistically significant nested patterns in the South China Sea and Nansha islands was the topmost site of nested matrix rank. Scleractinian coral species richness and Log(reef area) both had a significant effect on sites nested matrix rank (P < 0.05), which supports habitat nestedness hypothesis in the South China Sea. Scrapers were the most important functional group composition while the browser had a greater contribution on species nested matrix rank. Linear regression model showed parrotfish species richness increased with increasing longitude, scleractinian coral species richness and reef area. Variations in the parrotfish species richness in longitude was related to distance from the biodiversity hotspot in the Indo-Australian Archipelago. Parrotfish was mainly distributed in the range of 26-29℃, which was almost the same as the optimum temperature for coral growth. Nansha islands should be as biodiversity conservation priority areas, which could provide important reference significance for conservation efforts of parrotfish in degraded coral reefs habitats, especially in the context of increasing natural variability and anthropogenic disturbance.

Coral Reefs ◽  
2018 ◽  
Vol 37 (4) ◽  
pp. 1259-1271 ◽  
Author(s):  
Wen Huang ◽  
Ming Li ◽  
Kefu Yu ◽  
Yinghui Wang ◽  
Jingjing Li ◽  
...  

2018 ◽  
Vol 28 (7) ◽  
pp. 957-972 ◽  
Author(s):  
Huiping Jiang ◽  
Fenzhen Su ◽  
Chenghu Zhou ◽  
Xiaomei Yang ◽  
Qi Wang ◽  
...  

2017 ◽  
Vol 36 (3) ◽  
pp. 99-108 ◽  
Author(s):  
Lei Guo ◽  
Wenhuan Zhan ◽  
Fan Zhang ◽  
Jinchang Zhang ◽  
Yantao Yao ◽  
...  

2018 ◽  
Vol 61 (1) ◽  
pp. 75-84 ◽  
Author(s):  
Wei Xu ◽  
Shuangshuang Guo ◽  
Linfeng Gong ◽  
Siti Aisyah Alias ◽  
Ka-Lai Pang ◽  
...  

AbstractRelative to that of sponges, the diversity of fungi associated with corals, and their ecological roles, remain largely unknown. In this study, we surveyed culturable diversity and screened antimicrobial activity of spent culture liquid of fungi associated with five scleractinian corals collected in the South China Sea. In total, 123 fungal isolates were obtained, which were identified to 31 taxa in 23 genera from two phyla (Ascomycota and Basidiomycota) by comparing their ITS rDNA sequences with the reference sequences in GenBank. Specifically, eight genera of the Ascomycota (Periconia,Arthrinium,Engyodontium,Lasiodiplodia,Hortaea,Devriesia,CyphellophoraandCadophora) and six genera of the Basidiomycota (Rhodosporidium,Panus,Trametes,Schizophyllum,TrichosporonandCystobasidium) are new records for corals. The fungal communities in the five scleractinian coral species, together with those from previous studies, indicate that a high level of fungal diversity is associated with scleractinian corals. The antimicrobial activities of spent culture liquid of 31 selected fungal species were tested against five marine pathogenic bacteria. This study contributes to our knowledge of scleractinian coral-associated fungi and their potential as sources of pharmaceutical drug leads for pathogenic bacteria.


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