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| 1 | Nutrient dynamics in the Sundarbans mangrove estuarine system of Bangladesh under different weather and tidal cycles显示文摘Introduction:Seasonal and tidal variations in nutrient concentration and water quality were investigated in the western Sundarbans of Bangladesh during the post-monsoon,winter and monsoon seasons during 2010–2011.Methods:Water collected from the surface,middle and bottom layers at six locations of the Kholpetua-Arpangashia river system during high and low tides was analyzed for temperature,salinity,pH,dissolved oxygen(DO),total dissolved solids(TDS),electrical conductivity(EC)and dissolved nutrients(NO3–N,PO4–P,SO4 and NH3–N).Results:The study revealed that nutrient concentrations were influenced by seasonal changes.Mean nutrient levels during post-monsoon,winter and monsoon seasons,respectively,were in the following ranges:nitrate(0.06–0.40,0.06–0.46 and 0.08–0.46 mg/L);phosphate(0.09–0.18,0.05–0.42 and 0.10–0.16 mg/L);sulphate(58.71–86.14,68.68–119.01 and 78.15–136.47 mg/L)and ammonia(0.02–0.08,0.02–0.04 and 0.26–0.38 mg/L).Increased levels of PO4–P,SO4 and NH3–N and lower DO and salinity were recorded during the monsoon period.Most of the experimental sites showed higher NO3–N content during monsoon,whereas few elevated concentrations were observed during post-monsoon and winter periods.High and low tidal waters contained mean nutrient levels in the following ranges:nitrate(0.05–0.46 and 0.04–0.40 mg/L);phosphate(0.05–0.42 and 0.07–0.18 mg/L);sulphate(63.63–125.36 and 58.71–136.47 mg/L)and ammonia(0.02–0.38 and 0.02–0.37 mg/L)without following any distinct fluctuation patterns.The western part of the Sundarbans receives less freshwater input during the monsoon season than other areas of the ecosystem,which reduces the variability of nutrient levels and water quality components.Conclusions:This study provides considerable advances in understanding the seasonality of nutrient distribution with possible tidal influence.The data generated from this study will guide continuing efforts to support a sound management for coastal mangrove ecosystems. | Shak Md Bazlur Rahaman Lipton Sarder Md Sayadur Rahaman Alokesh Kumar Ghosh Sudhin Kumar Biswas SM Shahjahan Siraj Khandaker Anisul Huq Abul Farah Md Hasanuzzaman Shikder Saiful Islam | 2013 | Ecological Processes2013，2，1： | 2 |
| 2 | Self-limiting nature of seasonal cholera epidemics:role of host-mediated amplification of phage显示文摘 | Faruque SM Islam MJ Ahmad QS | 2005 | Proc Natl Acad Sci USA2005，102，17： | 1 |
| 3 | Seasonal epidemics of cholera inversely correlate with the prevalence of environmental cholera phages 显示文摘 | Faruque SM Naser IB Islam MJ | 2005 | Proc Nail Acad Sci USA2005，102，5： | 1 |
| 4 | Placenta previa and it's relation with maternal age,gravidity and cesarean section显示文摘 | Hossain GA Islam SM Mahmood S | 2004 | Mymensingh Med J2004，13，2： | 1 |
| 5 | Draxin, a Repulsive Guid- ance Protein for Spinal Cord and Forebrain Commissures 显示文摘 | Islam SM Shinmyo Y Okafuji T | 2009 | Sci- ence2009，323，： | 1 |
| 6 | Draxin, an axon guidance pro- tein, affects chick trunk neural crest migration 显示文摘 | Su YH Naser IB Islam SM | 2009 | Dev Growth Differ2009，51，： | 1 |
| 7 | Prevalence and risk factors for epiretinal membranes in a multi-ethnic United States population显示文摘 | Ng CH Cheung N WangJ J Islam AF Kawasaki R Meuer SM | 2011 | Ophthalmology2011，8，4： | 1 |
| 8 | Isolation and identification of compounds from the leaf extract of Dillenia indica Linn显示文摘 | Muhit MA Tareq SM Apu AS Basak D Islam SM | 2010 | Bangladesh Pharm J2010，13，1： | 1 |
| 9 | Availability and rational use of drugs in primary healthcare facilities following the national drug policy of 1982: is Bangladesh on right track? 显示文摘 | Ahmed SM Islam QS | 2012 | Journal of Health Population and Nutrition2012，30，1： | 1 |
| 10 | In vitro effect of hesperi- din on root dentin collagen and de/re-mineralization显示文摘 | Islam SM Hiraishi N Nassm' M | 2012 | Dent Ma- ter J2012，31，3： | 1 |
| 11 | Placenta previa and it's relation with maternal age,gravidity and cesarean section显示文摘 | Hossain GA Islam SM Mahmood S | 2004 | Mymensingh Med J2004，13，2： | 1 |
| 12 | Mammography in the most effective method of breast cancer screening 显示文摘 | Islam SR Aziz SM | 2012 | Mymensingh Med J2012，21，： | 1 |
| 13 | Muhicentric reticulohistiocytosis: a rare yet challenging disease显示文摘 | Islam AD Naguwa SM Cheema GS | 2013 | Clin Rev Allergy Immunol2013，45，2： | 1 |
| 14 | Draxin, a repulsive guid- ance protein for spinal cord and forebrain commissures 显示文摘 | Islam SM Shinmyo Y Okafuji T | 2009 | Sci- ence2009，323，： | 1 |
| 15 | Draxin, an axon guidance pro- tein, affects chick trunk neural crest migration 显示文摘 | Su YH Naser IB Islam SM | 2009 | Dev Growth Differ2009，51，： | 1 |
| 16 | Self-limiting nature of seasonal cholerae pidemics:role of host-mediated amplification of phage显示文摘 | FARUQUE SM ISLAM MJ AHMAD QS | 2005 | Proc Natl Acad Sci USA2005，102，17： | 1 |
| 17 | Draxin is involved in the proper development of the dI3 intemeuron in chick spinal cord 显示文摘 | Su Y Zhang S Islam SM | 2010 | Dev Dyn2010，239，： | 1 |
| 18 | Development of ARMS - PCR assay for genotyping of Prol2Ala SNP of PPARG gene: a cost effective way for case - control studies of type 2 diabetes in developing coun- tries显示文摘 | Islam M Awan FR Baig SM | 2014 | Mol Biol Rep2014，41，9： | 1 |
| 19 | Silencing Daxx in- creases the anti-tumor activity of a TRAIL/shRNA Bcl-xL-express- ing oncalytic adenovirus through enhanced viral replication and cellu- lar arrest 显示文摘 | Kang S Kang D Bakhtiar U1 Islam SM | 2015 | Cell Signal2015，27，6： | 1 |
| 20 | Novel multiplex PCR for the detection of lactic acid bacteria during kimchi fermentation显示文摘 | Cho KM Math RK Islam SM | 2009 | Molecular and Cellular Probes2009，23，： | 1 |
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