scholarly journals Natural distinction of carbon and nitrogen isotopic niches in common fish species across marine biotopes in the Yellow River estuary

2021 ◽  
Author(s):  
Pei Qu ◽  
Min Pang ◽  
Fangyuan Qu ◽  
Zhao Li ◽  
Meng Xiao ◽  
...  
Keyword(s):  
Fish Species ◽  
Yellow River ◽  
River Estuary ◽  
Yellow River Estuary ◽  
The Yellow River ◽  
Carbon And Nitrogen

scholarly journals Natural distinction of carbon and nitrogen isotopic niches in common fish species for diverse marine biotopes off the Yellow River estuary and adjacent sea areas

2020 ◽  
Author(s):  
Pei Qu ◽  
Min Pang ◽  
Fangyuan Qu ◽  
Zhao Li ◽  
Meng Xiao ◽  
...  
Keyword(s):  
Yellow River ◽  
River Estuary ◽  
Fish Communities ◽  
Open Water ◽  
Yellow River Estuary ◽  
The Yellow River ◽  
Laizhou Bay ◽  
Isotopic Niche ◽  
Carbon And Nitrogen ◽  
Stable Isotopic

Stable isotope analysis is a universally recognized and efficient method of indicating trophic relationships that is widely applied in research. However, variations in natural isotopic abundance may lead to inaccuracies due to the effects of complex environmental conditions. This research compared the carbon and nitrogen isotopic niches of fish communities between diverse biotopes around the Yellow River estuary and adjacent sea areas, with the aim of revealing distinctions in stable isotopic niche metrics, trophic positions, and feeding preferences. Stable isotopic niche results indicated that the communities of estuarine habitants were compatible in most study biotopes, and may provide a corridor for energy and material transportation between Laizhou Bay and the open water. Local biocoenosis was embodied in the wider isotopic niche corresponding to frequent environmental changes and abiotic gradients. This implied that they used various food sources to adapt to the fickle environment, including marine-terrestrial boundaries and the estuary. Our analysis of the food source contribution indicated that allochthonous sources were considered major energy sources in estuarine areas directly affected by Yellow River-diluted water, while autochthonous benthic and pelagic producers dominated carbon input into the food web in Laizhou Bay and the open water. A significant variation in the fish δN characteristic was found within estuarine adjacent regions, so, together with the results from previous studies, we deemed the local high concentration of dissolved inorganic nitrogen as the original trigger of the abnormal δN characteristic in fishes via a transport process along food chains. These results provide a new perspective on the natural distinction of carbon and nitrogen isotopic niches. The detailed data reported here enhance our understanding of variations in fish communities in estuarine ecosystems.

Effects of Nitrate Exposure on Nitrate Reduction Processes in the Wetland Sediments from the Yellow River Estuary

2021 ◽  
Author(s):  
Mingcong Li ◽  
Guangshan Wei ◽  
Jiai Liu ◽  
Xiaoyun Wang ◽  
Lijun Hou ◽  
...  
Keyword(s):  
Nitrate Reduction ◽  
Yellow River ◽  
River Estuary ◽  
Yellow River Estuary ◽  
The Yellow River ◽  
Reduction Processes

Bacterial Succession in Salt Marsh Soils Along a Short-term Invasion Chronosequence of Spartina alterniflora in the Yellow River Estuary, China

2019 ◽  
Vol 79 (3) ◽  
pp. 644-661 ◽  
Author(s):  
Guangliang Zhang ◽  
Junhong Bai ◽  
Qingqing Zhao ◽  
Jia Jia ◽  
Wei Wang ◽  
...  
Keyword(s):  
Salt Marsh ◽  
Spartina Alterniflora ◽  
Yellow River ◽  
River Estuary ◽  
Yellow River Estuary ◽  
The Yellow River ◽  
Short Term ◽  
Bacterial Succession

Detecting changes of the Yellow River Estuary via SAR images based on a local fit-search model and kernel-induced graph cuts

2014 ◽  
Vol 35 (11-12) ◽  
pp. 4009-4030 ◽  
Author(s):  
Maoguo Gong ◽  
Meng Jia ◽  
Linzhi Su ◽  
Shuang Wang ◽  
Licheng Jiao
Keyword(s):  
Yellow River ◽  
River Estuary ◽  
Graph Cuts ◽  
Yellow River Estuary ◽  
The Yellow River ◽  
Search Model ◽  
Sar Images ◽  
Induced Graph
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