scholarly journals Dyadobacter luticola sp. nov., isolated from a sewage sediment sample

2019 ◽  
Vol 69 (2) ◽  
pp. 465-469 ◽  
Author(s):  
Zhirui Song ◽  
Yali Song ◽  
Ying Yu ◽  
Lina Choi ◽  
Gejiao Wang ◽  
...  
Keyword(s):  
Sediment Sample ◽  
Sewage Sediment

scholarly journals Bacillus mangrovi sp. nov., isolated from a sediment sample from a mangrove forest

2017 ◽  
Vol 67 (7) ◽  
pp. 2219-2224 ◽  
Author(s):  
Vasundhera Gupta ◽  
Pradip Kumar Singh ◽  
Suresh Korpole ◽  
Naga Radha Srinivas Tanuku ◽  
Anil Kumar Pinnaka
Keyword(s):  
Sediment Sample ◽  
Mangrove Forest

scholarly journals Detection and Identification of Sediment Layer to Discover the Marine Mineral Resources Potential in Aruah Islands

2021 ◽  
Vol 9 (1) ◽  
pp. 70
Author(s):  
Pareng Rengi ◽  
Ulil Amri ◽  
Tomi Ramadona ◽  
Ediar Usman ◽  
Bustari Bustari
Keyword(s):  
Sediment Sample ◽  
Single Channel ◽  
Low Frequency ◽  
Mineral Resources ◽  
Coarse Sand ◽  
Sediment Layer ◽  
Sediment Thickness ◽  
Seismic Profiles ◽  
Detection And Identification ◽  
Sediment Layers

<p>Aruah Islands is located on an international shipping line adjacent to Malaysia. The important aspect in borderline management is the maritime resource potential, one of which is sea minerals. In order to dig the information about marine mineral resources in Aruah Islands, a high-resolution seismic reflection with low frequency was applied, which capable to detect the depth and identify the sedimentary layers clearly and accurately. The depth of water and sediment layers were detected using an echosounder, reason Navi sound type 210 with a tow fish 100 kHz and shallow seismic boomer with a single channel type and wave energy 200 Joules. Gravity core and grab sampler were used to collect the sediment sample. There were three stages on seismic interpretation: sequence analysis, facies analysis, and reflection character identification. Furthermore, sediments containing coarse sand-sized minerals were observed using a microscope. The measurement result of Aruah Islands water depth was ranging from 0-80 m, the deepest part is on the Northern of Batu Mandi island which was 80 m depth. Seismic profiles indicated that the upper layer of tertiary sedimentary as the youngest rocks. Based on sediment thickness, the thickest area was found on the Western (approx. 50 m) and the Northern (approx. 32 m). In line with the island’s Southern part condition, which was plain or shallow sea exposure, the Southeastern island sediment thickness ranged only about 10-18 m. Generally, based on the analyzed sediment sample, quartz was the main mineral found, which was 60-80% of the composition. Other minerals were zircon, tin, hematite, magnetite, limonite, biotite, and dolomite.</p>

scholarly journals Southern Lake Michigan coastal ice and sediment sample data: shoreface and ice profiles (Winter 1990/91)

1991 ◽  
Author(s):  
Michael McCormick ◽  
Edward W. Kempema ◽  
John W. Haines ◽  
Peter W. Barnes ◽  
Erk Reimnitz
Keyword(s):  
Sediment Sample ◽  
Lake Michigan ◽  
Sample Data

Flow through a laboratory sediment sample by computer simulation modeling

2007 ◽  
Vol 374 (2) ◽  
pp. 501-506 ◽  
Author(s):  
R.B. Pandey ◽  
Allen H. Reed ◽  
Edward Braithwaite ◽  
Ray Seyfarth ◽  
J.F. Gettrust
Keyword(s):  
Computer Simulation ◽  
Sediment Sample ◽  
Simulation Modeling ◽  
Flow Through

Deinococcus enclensis sp. nov., isolated from a marine sediment sample

2014 ◽  
Vol 107 (1) ◽  
pp. 141-148 ◽  
Author(s):  
Meghana N. Thorat ◽  
Rahul Mawlankar ◽  
Vidya V. Sonalkar ◽  
V. Venkata Ramana ◽  
Neetha Joseph ◽  
...  
Keyword(s):  
Marine Sediment ◽  
Sediment Sample ◽  
Marine Sediment Sample

Organotin compounds in Mersey and Thames Estuaries a decade after UK TBT legislation

2003 ◽  
Vol 83 (1) ◽  
pp. 11-22 ◽  
Author(s):  
H. Harino ◽  
S.C.M. O'Hara ◽  
G.R. Burt ◽  
B.S. Chesman ◽  
N.D. Pope ◽  
...  
Keyword(s):  
Linear Relationship ◽  
Mytilus Edulis ◽  
Sediment Sample ◽  
Surface Sediments ◽  
Organotin Compounds ◽  
Mussel Population ◽  
Middle Section ◽  
Upstream Site ◽  
Thames Estuary ◽  
The Uk

Organotin (OT) compounds were determined in surface sediments and mussels Mytilus edulis from two major estuaries of the UK, the Mersey and the Thames, approximately one decade after legislation banning the use of tributyltin (TBT) compounds on small boats. Tributyltin concentrations in Mersey sediments ranged from 0·007–0·173 μg (as Sn) g−1 dry wt, increasing from the most upstream site, Fiddlers Ferry, towards the middle section of the estuary, and were highest at Stanlow, perhaps indicative of sources from the Manchester Ship Canal (MSC). A further peak in TBT concentrations occurred at New Brighton, opposite Liverpool Docks. Tributyltin was the predominant butyltin (BT) species in sediments (approximately 50%). Despite the fact that BTs represented only 4% of the total (HNO3-extractable) tin in sediments there was a linear relationship between these two tin compartments. Furthermore, BTs in mussels were correlative with total extractable tin in sediment, though in contrast to sediments, 85% of the total tin in mussels was made up of BTs, the most predominant of which was TBT. Concentrations of TBT in mussels increased from 0·058 μg Sn g−1 dry wt at the mouth of the estuary to 0·214 μg Sn g−1 dry wt at their upstream limit, close to the entrance to the MSC (Eastham). Triphenyltin (TPT) compounds were detected in only one sediment sample (New Brighton, 0·359 μg Sn g−1 dry wt) and one mussel population (Egremont, 0·022 μg Sn g−1 dry wt). Tributyltin concentrations in sediments from the Thames Estuary were marginally lower (0·002–0·078 μg Sn g−1 dry wt) than those found in the Mersey: highest concentrations were present in the upper estuary and decreased seaward. Again BTs contributed only a small percentage (<1% mean) towards the total tin loading in Thames sediments, but represented most of the tin burden (80%) in mussels. In contrast to sediments, TBT levels in mussels from the Thames Estuary were slightly higher than the Mersey (concentrations ranged from 0·100 μg Sn g−1 dry wt at the mouth to 0·302 μg Sn g−1 dry wt upstream) suggesting that TBT bioavailability is disproportionately higher in the Thames. Phenyltins were not detected in Thames samples.

Analysis of Pesticide Residues by Chemical Derivatization. VI. Analysis of Ten Acid Herbicides in Sediment1

1983 ◽  
Vol 66 (4) ◽  
pp. 1023-1028
Author(s):  
Hing-Biu Lee ◽  
Alfred S Y Chau
Keyword(s):  
Sediment Sample ◽  
Detection Limits ◽  
Chemical Derivatization ◽  
Multiresidue Analysis ◽  
Organic Extract ◽  
Sediment Samples ◽  
Routine Monitoring ◽  
Liquid Chromatographic ◽  
Acid Herbicides ◽  
Better Than

Abstract A sensitive gas-liquid chromatographic (GLC) method was developed for multiresidue analysis of 10 acid herbicides in sediment. An acidified sediment sample was extracted 3 times with acetonehexane. The combined organic extract was partitioned with acidified water to remove aqueous coextractives. To produce low detection limits for all herbicides including MCPA and MCPB for routine monitoring purposes, pentaf luorobenzyl esters were formed before GLC analysis. Recoveries of all herbicides from fortified sediment samples were better than 80% at the levels studied. Practical detection limits of this method were 10-25 μg/kg (ppb).

scholarly journals Phaeobacterium nitratireducens gen. nov., sp. nov., a phototrophic gammaproteobacterium isolated from a mangrove forest sediment sample

2015 ◽  
Vol 65 (Pt_8) ◽  
pp. 2357-2364 ◽  
Author(s):  
Nupur ◽  
Naga Radha Srinivas Tanuku ◽  
Takaichi Shinichi ◽  
Anil Kumar Pinnaka
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Sediment Sample ◽  
Type Strain ◽  
Mangrove Forest ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
The Family

A novel brown-coloured, Gram-negative-staining, rod-shaped, motile, phototrophic, purple sulfur bacterium, designated strain AK40T, was isolated in pure culture from a sediment sample collected from Coringa mangrove forest, India. Strain AK40T contained bacteriochlorophyll a and carotenoids of the rhodopin series as major photosynthetic pigments. Strain AK40T was able to grow photoheterotrophically and could utilize a number of organic substrates. It was unable to grow photoautotrophically and did not utilize sulfide or thiosulfate as electron donors. Thiamine and riboflavin were required for growth. The dominant fatty acids were C12 : 0, C16 : 0, C18 : 1ω7c and summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH). The polar lipid profile of strain AK40T was found to contain diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol and eight unidentified lipids. Q-10 was the predominant respiratory quinone. The DNA G+C content of strain AK40T was 65.5 mol%. 16S rRNA gene sequence comparisons indicated that the isolate represented a member of the family Chromatiaceae within the class Gammaproteobacteria. 16S rRNA gene sequence analysis indicated that strain AK40T was closely related to Phaeochromatium fluminis, with 95.2 % pairwise sequence similarity to the type strain; sequence similarity to strains of other species of the family was 90.8–94.8 %. Based on the sequence comparison data, strain AK40T was positioned distinctly outside the group formed by the genera Phaeochromatium, Marichromatium, Halochromatium, Thiohalocapsa, Rhabdochromatium and Thiorhodovibrio. Distinct morphological, physiological and genotypic differences from previously described taxa supported the classification of this isolate as a representative of a novel species in a new genus, for which the name Phaeobacterium nitratireducens gen. nov., sp. nov. is proposed. The type strain of Phaeobacterium nitratireducens is AK40T ( = JCM 19219T = MTCC 11824T).

Sign in / Sign up

Export Citation Format

Share Document