Intertidal zonation affects diversity and functional potentials of bacteria in surface sediments: A case study of the Golden Bay mangrove, China

2018 ◽  
Vol 130 ◽  
pp. 159-168 ◽  
Author(s):  
Ping Zhu ◽  
Yaping Wang ◽  
Tiantian Shi ◽  
Xiaoli Zhang ◽  
Guoqiang Huang ◽  
...  
Keyword(s):  
Surface Sediments ◽  
Intertidal Zonation

Environmental Risk Assessment of Lake Surface Sediments Using Trace Elements: A Case Study, the Wular Lake

2020 ◽  
Vol 95 (2) ◽  
pp. 145-151
Author(s):  
Rayees Ahmad Shah ◽  
Hema Achyuthan ◽  
Aasif Mohmad Lone ◽  
Suhail Ahmad Lone ◽  
M. Subzar Malik
Keyword(s):  
Risk Assessment ◽  
Trace Elements ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Surface Sediments ◽  
Lake Surface ◽  
Wular Lake

Toxicity profiling of marine surface sediments: A case study using rapid screening bioassays of exhaustive total extracts, elutriates and passive sampler extracts

2017 ◽  
Vol 124 ◽  
pp. 81-91 ◽  
Author(s):  
A. Dick Vethaak ◽  
Timo Hamers ◽  
Concepción Martínez-Gómez ◽  
Jorke H. Kamstra ◽  
Jasperien de Weert ◽  
...  
Keyword(s):  
Surface Sediments ◽  
Passive Sampler ◽  
Rapid Screening ◽  
Marine Surface

scholarly journals Dynamics of dissolved inorganic nitrogen in bioturbated littoral surface sediments at a selected tourist destination of Northern Coastal Bay of Bengal, India: An ecologically significant case study

2018 ◽  
Vol 5 (11) ◽  
pp. 799-814
Author(s):  
Abhishek Mukherjee ◽  
Sabyasachi Chakraborty ◽  
Subhajit Das ◽  
Tarun Kumar De
Keyword(s):  
Surface Sediments ◽  
Inorganic Nitrogen ◽  
Pearson Correlation ◽  
Environmental Parameters ◽  
Ammonia Nitrogen ◽  
Nitrogen Species ◽  
Dissolved Inorganic Nitrogen ◽  
Nitrite Nitrogen ◽  
Beach Sediments

A case study was undertaken to observe the variations in the concentrations of the dissolved inorganic nitrogen species in the surface sediments of the littoral compartments at Bakkhali and Frasergunj situated within the single coastal stretch at the southernmost tip of West Bengal, India. Effects, if any, of the presence or absence of bioturbations on the variability of the dissolved nitrate-nitrogen, nitrite-nitrogen, ammonia-nitrogen, total dissolved nitrogen and the cumulative concentration of former three variables in the beach surface sediments were also noted. On site nitrite-nitrogen was found in alternate fluctuating patterns throughout the beach zonations with gradual lowering and peaking within each zone. An evidently prominent fact was the independence of dissolved inorganic nitrogen species from bioturbatory influences in the surface sediments of wave exposed littoral environments at the study sites. That effect might become significant in a vertical profile but from the data procured it can be stated that inorganic nitrogen species concentrations in surface beach sediments are not entirely perturbed by bioturbations and are governed by many other environmental parameters. A Pearson correlation performed on the normalized data sets revealed that there existed a fairly significant correlation in between the both the beach sediments with r-values ranging from -0.97 to +0.99 among the five variables considered at 95% confidence level. ANOVA Single factor yielded values in support of the rejection of the null hypothesis.

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