scholarly journals Use of artificial structures to enhance fish diversity in the Youjiang River, a dammed river of the Pearl River in China

2020 ◽  
Vol 10 (23) ◽  
pp. 13439-13450
Author(s):  
Dingli Guo ◽  
Lei Zhou ◽  
Gongpei Wang ◽  
Han Lai ◽  
Sheng Bi ◽  
...  
Keyword(s):  
Pearl River ◽  
Fish Diversity ◽  
Artificial Structures ◽  
The Pearl River ◽  
Dammed River

scholarly journals The structuring role of artificial structure on fish assemblages in a dammed river of the Pearl River in China

2018 ◽  
Vol 31 ◽  
pp. 15 ◽  
Author(s):  
Lei Zhou ◽  
Dingli Guo ◽  
Lei Zeng ◽  
Peng Xu ◽  
Qindong Tang ◽  
...  
Keyword(s):  
Species Richness ◽  
Field Experiments ◽  
Fish Assemblages ◽  
Pearl River ◽  
Fish Length ◽  
Artificial Structures ◽  
Artificial Structure ◽  
Functional Richness ◽  
The Pearl River ◽  
Dammed River

To address the fish use patterns of artificial structures mimicking floating macrophytes deployed in a impounded tributary of the Pearl River, China, field experiments were performed from December 2014 to June 2016 using multi-mesh gillnet. The fish assemblages using artificial structures differ in terms of species richness, abundance, body size, diversity indices, and ecological traits from fish assemblages on natural barren habitats of this river. Overall, fish abundance, species richness, Shannon diversity index, and functional richness were higher at the artificial structures than at the control sites, while fish length and functional evenness was greater at the control sites in comparison to artificial structures. The introduction of artificial structures did not result in statistically significant effects on fish biomass as artificial structures attracted more individuals with smaller size. Seasonal changes of chlorophyll-a and transparency may affect the efficiency of artificial structure in harboring fishes. This study revealed that artificial structures, as synthesized habitats, are effective in acting as a “fish attractor” and an alternative tool to provide new habitats for smaller individuals in a dammed river like the Youjiang River which is a structure-less ecosystem.

Spatial patterns of fish diversity and distribution in the Pearl River

2017 ◽  
Vol 37 (9) ◽  
Author(s):  
帅方敏 SHUAI Fangmin ◽  
李新辉 LI Xinhui ◽  
刘乾甫 LIU Qianfu ◽  
李跃飞 LI Yuefei ◽  
杨计平 YANG Jiping ◽  
...  
Keyword(s):  
Spatial Patterns ◽  
Pearl River ◽  
Fish Diversity ◽  
The Pearl River

eDNA metabarcoding as a promising conservation tool for monitoring fish diversity in a coastal wetland of the Pearl River Estuary compared to bottom trawling

2020 ◽  
Vol 702 ◽  
pp. 134704 ◽  
Author(s):  
Keshu Zou ◽  
Jianwei Chen ◽  
Huiting Ruan ◽  
Zhenhai Li ◽  
Wenjie Guo ◽  
...  
Keyword(s):  
Coastal Wetland ◽  
River Estuary ◽  
Pearl River Estuary ◽  
Pearl River ◽  
Fish Diversity ◽  
Bottom Trawling ◽  
The Pearl River Estuary ◽  
The Pearl River

EVOLUTION OF SEDIMENTARY FACIES AND PALEOENVIRONMENT DURING THE LATE QUATERNARY IN WANQINGSHA AREA OF THE PEARL RIVER DELTA

2010 ◽  
Vol 29 (6) ◽  
pp. 35-42
Author(s):  
Jianhua WANG ◽  
Linglong CAO ◽  
Xiaojing WANG ◽  
Xiaoqiang YANG ◽  
Jie YANG ◽  
...  
Keyword(s):  
Pearl River Delta ◽  
Late Quaternary ◽  
Sedimentary Facies ◽  
River Delta ◽  
Pearl River ◽  
The Pearl River Delta ◽  
The Pearl River

Effects of climate change and fishing on the Pearl River Estuary ecosystem and fisheries

2019 ◽  
Vol 29 (4) ◽  
pp. 861-875
Author(s):  
Zeyu Zeng ◽  
William W. L. Cheung ◽  
Shiyu Li ◽  
Jiatang Hu ◽  
Ying Wang
Keyword(s):  
Climate Change ◽  
River Estuary ◽  
Pearl River Estuary ◽  
Pearl River ◽  
The Pearl River Estuary ◽  
The Pearl River

scholarly journals The Role of Environmental Factors on the Fishery Catch of the Squid Uroteuthis chinensis in the Pearl River Estuary, China

2021 ◽  
Vol 9 (2) ◽  
pp. 131
Author(s):  
Dongliang Wang ◽  
Lijun Yao ◽  
Jing Yu ◽  
Pimao Chen
Keyword(s):  
River Estuary ◽  
Pearl River Estuary ◽  
Sea Surface ◽  
Spatiotemporal Variability ◽  
Pearl River ◽  
Coastal Current ◽  
Catch Per Unit Effort ◽  
Chl A ◽  
The Pearl River Estuary ◽  
The Pearl River

The Pearl River Estuary (PRE) is one of the major fishing grounds for the squid Uroteuthis chinensis. Taking that into consideration, this study analyzes the environmental effects on the spatiotemporal variability of U. chinensis in the PRE, on the basis of the Generalized Additive Model (GAM) and Clustering Fishing Tactics (CFT), using satellite and in situ observations. Results show that 63.1% of the total variation in U. chinensis Catch Per Unit Effort (CPUE) in the PRE could be explained by looking into outside factors. The most important one was the interaction of sea surface temperature (SST) and month, with a contribution of 26.7%, followed by the interaction effect of depth and month, fishermen’s fishing tactics, sea surface salinity (SSS), chlorophyll a concentration (Chl a), and year, with contributions of 12.8%, 8.5%, 7.7%, 4.0%, and 3.1%, respectively. In summary, U. chinensis in the PRE was mainly distributed over areas with an SST of 22–29 °C, SSS of 32.5–34‰, Chl a of 0–0.3 mg × m−3, and water depth of 40–140 m. The distribution of U. chinensis in the PRE was affected by the western Guangdong coastal current, distribution of marine primary productivity, and variation of habitat conditions. Lower stock of U. chinensis in the PRE was connected with La Niña in 2008.

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