Temporal and Spatial Dynamics of Diel-Cycling Hypoxia in Estuarine Tributaries

Estuaries and Coasts, Journal Year: 2008, Volume and Issue: 32(1), P. 123 - 145

Published: Oct. 30, 2008

Language: Английский

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Effects of physical and biochemical processes on the dissolved oxygen budget for the Pearl River Estuary during summer

Journal of Marine Systems, Journal Year: 2009, Volume and Issue: 79(1-2), P. 65 - 88

Published: July 20, 2009

Language: Английский

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An Idealized Model and Systematic Process Study of Oxygen Depletion in Highly Turbid Estuaries

Estuaries and Coasts, Journal Year: 2009, Volume and Issue: 32(4), P. 602 - 620

Published: May 26, 2009

Language: Английский

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Dissolved oxygen in the rehabilitation phase of an estuary: Influence of sewage pollution abatement and hydro-climatic factors

Marine Pollution Bulletin, Journal Year: 2013, Volume and Issue: 70(1-2), P. 234 - 246

Published: April 18, 2013

Language: Английский

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The hypoxia that developed in a microtidal estuary following an extreme storm produced dramatic changes in the benthos

Marine and Freshwater Research, Journal Year: 2015, Volume and Issue: 67(3), P. 327 - 327

Published: June 23, 2015

Runoff from an extreme storm on 22 March 2010 led, during the next 3 months, to formation of a pronounced halocline and underlying hypoxia in upper reaches microtidal Swan–Canning Estuary. Benthic macroinvertebrates were sampled between January October 2011 at five sites along 10km this region. By mid-April, number species, total density, Simpson’s evenness index taxonomic distinctness had declined markedly, crustaceans disappeared densities annelids molluscs slightly. These faunal attributes (except index) species composition did not recover until after end hypoxia. The survival loss period reflects different sensitivities these taxa severe environmental stress. results emphasise that estuaries with long residence times are highly vulnerable effects perturbations, particularly warmer periods year.

Language: Английский

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Genetic and biogeochemical investigation of sedimentary nitrogen cycling communities responding to tidal and seasonal dynamics in Cape Fear River Estuary

Estuarine Coastal and Shelf Science, Journal Year: 2015, Volume and Issue: 167, P. A313 - A323

Published: Sept. 21, 2015

Language: Английский

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Concentration of Polycyclic Aromatic Hydrocarbons and Estimated Human Health Risk of Water Samples Around Atlas Cove, Lagos, Nigeria

Journal of Health and Pollution, Journal Year: 2018, Volume and Issue: 8(20)

Published: Dec. 1, 2018

Background.Polycyclic aromatic hydrocarbons (PAHs) are common pollutants in water and have been reported to cause severe health effects humans as well the ecosystem.Objectives.This study examined concentrations of polycyclic estimated human risk from samples around Atlas Cove jetty, Lagos, Nigeria.Methods.Physical chemical parameters PAHs were determined jetty using standard methods June August 2016 at five different points activity. Chronic daily intake through ingestion, exposure dose via dermal absorption carcinogenic risks calculated for children adults.Results.Electrical conductivity values ranged 23,600±57.74 - 30,000±57.74 μS/cm. Dissolved oxygen 6.27±0.46 9.60±0.00 mg/L. Biochemical demand levels 2.93±0.61 7.33±0.23 mg/L total dissolved solid 17,500±57.74 20,000±57.74 samples, which was higher than permissible limits. The obtained pH, demand, nitrate, sulphate phosphate within World Health Organization (WHO) limits except pH point 2 (3.18±0.02). A eleven PAH congeners detected samples. observed 46 507 μg/L. Low molecular weight more dominant all It that 2–3 ring accounted 63.64% PAHs, 4-rings 27.27% 5–6 9.09% PAHs.Conclusions.Carcinogenic both adults United States Environmental Protection Agency (USEPA) acceptable cancer risk, much children, suggests could be prone ingestion. Fauna flora may due pollution.Competing Interests.The authors declare no competing financial interests.

Language: Английский

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Reducing Hypoxia in an Urban Estuary Despite Climate Warming

Environmental Science & Technology, Journal Year: 2021, Volume and Issue: 55(2), P. 941 - 951

Published: Jan. 5, 2021

Seasonal hypoxia is a serious threat to coastal ecosystems. This study on in Long Island Sound (LIS), large urbanized estuary, focuses responses managed nitrogen load reductions and climate change. At the analyzed station western LIS, warming bottom waters (0.8 °C per decade) favors hypoxia. Total concentrations have decreased (0.06 mg L-1 with reductions, but no linear temporal trend chlorophyll discernible. Bottom dissolved oxygen has increased (0.48 decade), despite warming-induced solubility decreases (0.13 decade). Decreasing trends hypoxic area volume (100 km2 1 km3 reflect improved conditions are coincident reducing loads. Regressions link extent loads, chlorophyll, salinity, winds. Though mitigation reduced hypoxia, these improvements will not be sustained without continued intervention. The decrease forecasted for 2099 (0.4 L-1) would erode 35% of observed gains. Implementing reduction 1.2 × 106 kg year-1 before century's end offset decline. overall approach applicable areas experiencing development that complicate efforts reign

Language: Английский

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Hydrodynamic behavior of the Cape Fear River and estuarine system: A synthesis and observational investigation of discharge–salinity intrusion relationships

Estuarine Coastal and Shelf Science, Journal Year: 2010, Volume and Issue: 88(3), P. 407 - 418

Published: May 3, 2010

Language: Английский

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Microbial Keystone Players and Biogeochemical Impacts of Noctiluca scintillans Bloom in Mandovi Estuary on West Coast of India.

Regional Studies in Marine Science, Journal Year: 2025, Volume and Issue: unknown, P. 104178 - 104178

Published: April 1, 2025

Language: Английский

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