The characterization and pollution status of the surface sediment in the Boka Kotorska Bay, Montenegro

2021 ◽  
Author(s):  
Milena Radomirović ◽  
Nevenka Mijatović ◽  
Milica Vasić ◽  
Bojan Tanaskovski ◽  
Milica Mandić ◽  
...  
Keyword(s):  
Surface Sediment ◽  
Pollution Status

Pollution Status of Surface Sediment in Jinju Bay, a Spraying Shellfish Farming Area, Korea

2020 ◽  
Vol 26 (4) ◽  
pp. 392-402
Author(s):  
Garam Lee ◽  
◽  
Hyunjin Hwang ◽  
Jeong Bae Kim ◽  
Dong-Woon Hwang
Keyword(s):  
Surface Sediment ◽  
Farming Area ◽  
Pollution Status ◽  
Shellfish Farming

scholarly journals Pollution status of organochlorines and heavy metals in surface sediment of southern Lake Taihu

2011 ◽  
Vol 23 (4) ◽  
pp. 561-567
Author(s):  
CAO Yuan ◽  
◽  
QIU Yanling ◽  
YANG Xiaohong ◽  
LI Li ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Surface Sediment ◽  
Lake Taihu ◽  
Pollution Status

Pollution Status of Balu River due to Industrial Input at Dhaka, Bangladesh

2014 ◽  
Vol 2014 (1) ◽  
pp. 34-42 ◽  
Author(s):  
Khalid Hasan ◽  
◽  
Masuma Happy ◽  
Karimon Nesha ◽  
Razimul Karim ◽  
...  
Keyword(s):  
Pollution Status

PRELIMINARY ASSESSMENT OF THE CURRENT POLLUTION STATUS OF THE RIVER ATUWARA, NIGERIA, WITHIN AN INDUSTRIAL SITE: A BIVARIATE APPROACH

2019 ◽  
Author(s):  
OGBIYE A. SAMUEL ◽  
IMOKHAI T. TENEBE ◽  
PRAISEGOD C. EMENIKE ◽  
DIWA I. DANIEL ◽  
DAVID O. OMOLE ◽  
...  
Keyword(s):  
Industrial Site ◽  
Preliminary Assessment ◽  
Pollution Status ◽  
Bivariate Approach

THE ABUNDANCE OF RECENT FORAMINIFERA IN SURFACE SEDIMENT OF AMBON BAY

2010 ◽  
Vol 2 (1) ◽  
Author(s):  
Suhartati M. Natsir
Keyword(s):  
Surface Sediment ◽  
Benthic Foraminifera ◽  
Sea Water ◽  
Planktonic Foraminifera ◽  
Sediment Characteristic ◽  
Abundance And Distribution

Foraminifera are generally live in sea water with various sizes. These organisms consist of planktonic and benthic foraminifera. Geological activity on plutonic and volcanic with vomiting magma is transpiring on, and then affects sedimentation and foraminiferal abundance of Ambon Bay. The study was determined to study the abundance and distribution of foraminifera based on the sediment characteristic of Ambon Bay. Sample collected in 2007 of Ambon Bay showed that only 29 samples of 50 samples containing foraminifera. The collected sediments have 86 species of foraminifera, consisting 61 species of benthic foraminifera and 25 species of planktonic foraminifera. The dominant benthic foraminifera in the surface sediment of Ambon bay were Amphistegina lessonii, Ammoniabeccarii,Elphidium craticulatum,Operculina ammonoides and Quinqueloculina parkery. The planktonic foraminifera that were frequently collected from the bay were Globorotalia tumida, Globoquadrina pseudofoliata, Globigerinoides pseudofoliata, Globigerinoides cyclostomus dan Pulleniatina finalis. Generally, the species dwelled as abundant on substrate sand, whereas the areas within substrate mud have no foraminifera lie on them. Keywords: Foraminifera, Abundance, Sediment, Ambon Bay

Particle Size Effects on Concentration of Metals in Lake Erie Bottom Sediments

1984 ◽  
Vol 19 (1) ◽  
pp. 27-36 ◽  
Author(s):  
Alena Mudroch
Keyword(s):  
Particle Size ◽  
Organic Matter ◽  
Clay Minerals ◽  
Surface Sediment ◽  
Size Effects ◽  
Lake Erie ◽  
Size Fraction ◽  
Mineralogical Composition ◽  
Major Elements ◽  
Sediment Samples

Abstract Surface sediment samples obtained at the offshore and nearshore area of Lake Erie were separated into eight different size fractions ranging from <2 µm to 250 µm. The concentration of major elements (Si, Al, Ca, Mg, K, Na, Fe, Mn and P), metals (Zn, Cu, Cr, Ni, V, Co and Pb) and organic matter was determined together with the mineralogical composition and morphology of the particles in each size fraction. The distribution of the metals in the offshore sediment was bimodal with the majority of the metals divided between the 63 to 250 um size fraction which also contained the highest concentration of organic matter (about 20%) and the <4 µm fraction containing up to 60% of clay minerals. However, the metals in the nearshore sediment were associated mainly with the clay minerals.

scholarly journals The Variation on Sediment Reworking with Influencing Factors by a Sand Bubbler Crab, Scopimera globosa, in Intertidal Sediments of the Anmyeon Island, Korea

2021 ◽  
Vol 13 (10) ◽  
pp. 5703
Author(s):  
Jaehwan Seo ◽  
Bon Joo Koo
Keyword(s):  
Chlorophyll A ◽  
Influencing Factors ◽  
Surface Sediment ◽  
Intertidal Sediments ◽  
Daily Production ◽  
Chlorophyll A Concentration ◽  
Sediment Reworking ◽  
Pellet Production ◽  
Crab Density ◽  
Annual Sediment

Though biological and ecological characteristics of Scopimera globosa have been intensively investigated, little has been understood on bioturbation, especially sediment reworking. This study was designed to evaluate variation on sediment reworking of S. globosa based on feeding pellet production (FP) and burrowing pellet production (BP) with influencing factors and estimating the chlorophyll content reduction within the surface sediment by its feeding. The FP and BP largely fluctuated according to chlorophyll a concentration and crab density, but both were not influenced by temperature. The FP was enhanced by chlorophyll a concentration, whereas both FP and BP were restricted by crab density. The daily individual production was highest in spring, followed by fall and summer, with values of 25.61, 20.70 and 3.90 g ind.−1 d−1, respectively, while the total daily production was highest in fall, followed by summer and spring 2150, 1660 and 660 g m−2 d−1, respectively. The daily sediment reworking based on the FP and BP of Scopimera was highest in fall, followed by summer and spring, with values of 1.91, 1.70 and 0.77 mm d-1 and the annual sediment reworking rate of this species was calculated 40 cm year−1 based on its density in this study area. The chlorophyll a reduction ratio was estimated from 11 to 24% in one day by its feeding. These results imply that the sediment reworking of S. globosa is regulated by food abundance and its density, and Scopimera is an important bioturbator, greatly influencing biogeochemical changes in the intertidal sediments.

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