Spatial variations of hydrogeochemistry and its controlling factors in the Satluj River Basin, Himalayas, India

2021 ◽  
Author(s):  
Akhtar Jahan ◽  
Mohd Khan ◽  
Nachiketa Rai ◽  
Tanveer Dar ◽  
Sudhir Kumar ◽  
...  
Keyword(s):  
River Basin ◽  
Controlling Factors ◽  
Spatial Variations ◽  
Satluj River

scholarly journals Temporal and Spatial Variations of the Biochemical Composition of Phytoplankton and Potential Food Material (FM) in Jaran Bay, South Korea

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3093
Author(s):  
Jae Hyung Lee ◽  
Won-Chan Lee ◽  
Hyung Chul Kim ◽  
Naeun Jo ◽  
Kwanwoo Kim ◽  
...  
Keyword(s):  
South Korea ◽  
Food Source ◽  
Coastal Region ◽  
Controlling Factors ◽  
Spatial Variations ◽  
Nutrient Concentrations ◽  
Food Material ◽  
Biochemical Component ◽  
Phytoplankton Communities ◽  
Biochemical Compositions

Food material (FM) derived from biochemical components (e.g., proteins, lipids, and carbohydrates) of phytoplankton can provide important quantitative and qualitative information of the food available to filter-feeding animals. The main objective of this study was to observe the seasonal and spatial variations of the biochemical compositions of phytoplankton and to identify the major controlling factors of FM as a primary food source in Jaran Bay, a large shellfish aquaculture site in South Korea. Based on monthly sampling conducted during 2016, significant monthly variations in the depth-integrated concentrations of major inorganic nutrients and chlorophyll a within the euphotic water column and a predominance (49.9 ± 18.7%) of micro-sized phytoplankton (>20 μm) were observed in Jaran Bay. Carbohydrates were the dominant biochemical component (51.8 ± 8.7%), followed by lipids (27.3 ± 3.8%) and proteins (20.9 ± 7.4%), during the study period. The biochemical compositions and average monthly FM levels (411.7 ± 93.0 mg m−3) in Jaran Bay were not consistent among different bays in the southern coastal region of South Korea, possibly due to differences in controlling factors, such as environmental and biological factors. According to the results from multiple linear regression, the variations in FM could be explained by the relatively large phytoplankton and the P* (PO43− − 1/16 × NO3−) and NH4+ concentrations in Jaran Bay. The macromolecular compositions and FM, as alternatives food source materials, should be monitored in Jaran Bay due to recent changes in nutrient concentrations and phytoplankton communities.

Spatial variations in the magnitude of the 1993 floods, Raccoon River basin, Iowa

1994 ◽  
pp. 169-182 ◽  
Author(s):  
Karen L. Prestegaard ◽  
Anne M. Matherne ◽  
Brendan Shane ◽  
Kevin Houghton ◽  
Michael O'Connell ◽  
...  
Keyword(s):  
River Basin ◽  
Spatial Variations

Snow cover area variability assessment in the upper part of the Satluj river basin in India

2016 ◽  
Vol 32 (11) ◽  
pp. 1285-1306 ◽  
Author(s):  
Sandeep Shukla ◽  
Mitthan Lal Kansal ◽  
Sanjay K. Jain
Keyword(s):  
Snow Cover ◽  
River Basin ◽  
Snow Cover Area ◽  
Satluj River

Temporal and spatial variations and statistical models of extreme runoff in Huaihe River Basin during 1956–2010

2012 ◽  
Vol 22 (6) ◽  
pp. 1045-1060 ◽  
Author(s):  
Jun Xia ◽  
Hong Du ◽  
Sidong Zeng ◽  
Dunxian She ◽  
Yongyong Zhang ◽  
...  
Keyword(s):  
River Basin ◽  
Statistical Models ◽  
Spatial Variations ◽  
Huaihe River Basin ◽  
Huaihe River ◽  
Temporal And Spatial Variations ◽  
Temporal And Spatial

Temporal and spatial variations of δ18O in precipitation of the Yarlung Zangbo River Basin

2007 ◽  
Vol 17 (3) ◽  
pp. 317-326 ◽  
Author(s):  
Zhongfang Liu ◽  
Lide Tian ◽  
Tandong Yao ◽  
Tongliang Gong ◽  
Changliang Yin ◽  
...  
Keyword(s):  
River Basin ◽  
Spatial Variations ◽  
Temporal And Spatial Variations ◽  
Yarlung Zangbo River ◽  
Temporal And Spatial
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