Arsenic Environmental Threshold Surpass in Estuarine Sediments: Effects of Bioturbation
Sign Up to like & getrecommendations! Published in 2017 at "Bulletin of Environmental Contamination and Toxicology"
DOI: 10.1007/s00128-016-2024-z
Abstract: We investigate the distributions of the metalloid arsenic (As) and metals iron (Fe) and manganese (Mn) in the sediments of two pristine areas of a biological reserve in the Patos Lagoon Estuary. This area is… read more here.
Keywords: threshold surpass; arsenic environmental; environmental threshold; estuarine sediments ... See more keywords
Impact of raking and bioturbation-mediated ecological manipulation on sediment–water phosphorus diagenesis: a mesocosm study supported with radioactive signature
Sign Up to like & getrecommendations! Published in 2017 at "Environmental Geochemistry and Health"
DOI: 10.1007/s10653-017-9949-y
Abstract: The study examined the impact of raking and fish bioturbation on modulating phosphorus (P) concentrations in the water and sediment under different trophic conditions. An outdoor experiment was set to monitor physicochemical and microbiological parameters… read more here.
Keywords: raking bioturbation; water; study; diagenesis ... See more keywords
Experimental study on phosphorus release from sediment with fresh-water snail (Bellamya aeruginosa) bioturbation in eutrophic lakes
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Soils and Sediments"
DOI: 10.1007/s11368-020-02614-2
Abstract: To study the effects of snail (Bellamya aeruginosa) bioturbation on phosphorus (P) mobility in sediment and the relevant mechanisms behind them. A microcosm simulation experiment was carried out at millimeter resolution with an 89 days… read more here.
Keywords: bellamya aeruginosa; sediment; bioturbation; aeruginosa bioturbation ... See more keywords
The effect of lead contamination on bioturbation by Lumbriculus variegatus in a freshwater microcosm.
Sign Up to like & getrecommendations! Published in 2017 at "Chemosphere"
DOI: 10.1016/j.chemosphere.2016.09.128
Abstract: The present study investigated the effect of lead (Pb) on bioturbation by the oligochaete worm Lumbriculus variegatus, using freshwater microcosms. The experiment used lead at "0", 140, 700, and 3500 μg/g in sediment, and used two… read more here.
Keywords: lumbriculus variegatus; lead contamination; bioturbation; effect lead ... See more keywords
Towards benthic ecosystem functioning maps: Quantifying bioturbation potential in the German part of the Baltic Sea
Sign Up to like & getrecommendations! Published in 2017 at "Ecological Indicators"
DOI: 10.1016/j.ecolind.2016.10.025
Abstract: Abstract This study aims to estimate, model and map the spatial differences of ecosystem functioning expressed by community bioturbation potential (BPc), an indicator of benthic faunal function based on bioturbation, in the German part of… read more here.
Keywords: german part; bioturbation potential; baltic sea; part baltic ... See more keywords
Effects of enhanced bioturbation intensities on the toxicity assessment of legacy-contaminated sediments.
Sign Up to like & getrecommendations! Published in 2017 at "Environmental pollution"
DOI: 10.1016/j.envpol.2016.11.038
Abstract: Many benthic communities within estuarine ecosystems are highly degraded due to the close proximity of urban and industrial contamination sources. The maintenance of recolonised, healthy ecosystems following remediation is a challenge, and better techniques are… read more here.
Keywords: effects enhanced; contaminated sediments; toxicity; australiensis ... See more keywords
Bioturbation effects on metal release from contaminated sediments are metal-dependent.
Sign Up to like & getrecommendations! Published in 2019 at "Environmental pollution"
DOI: 10.1016/j.envpol.2019.04.003
Abstract: Metal flux measurements inform the mobility, potential bioavailability and risk of toxicity for metals in contaminated sediments and therefore is an important approach for sediment quality assessment. The binding and release of metals that contribute… read more here.
Keywords: contaminated sediments; bioturbation; effects metal; bioturbation effects ... See more keywords
Periodic fluctuations of marine oxygen content during the latest Permian
Sign Up to like & getrecommendations! Published in 2020 at "Global and Planetary Change"
DOI: 10.1016/j.gloplacha.2020.103326
Abstract: Abstract Widespread oceanic anoxia has been implicated as a killing mechanism during the end-Permian mass extinction (EPME). A high-resolution investigation of pyrite framboids and bioturbation structures in the Shangsi section of South China has revealed… read more here.
Keywords: bioturbation; oxygen; latest permian; dysoxic ... See more keywords
Multiple sulfur isotope records at the end-Guadalupian (Permian) at Chaotian, China: Implications for a role of bioturbation in the Phanerozoic sulfur cycle
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Asian Earth Sciences"
DOI: 10.1016/j.jseaes.2016.12.009
Abstract: Abstract A recent study on quadruple sulfur isotopes (32S, 33S, 34S, and 36S) of sedimentary pyrite suggested that the end-Guadalupian extinction was caused by shoaling of the sulfidic deep-water. This scenario is based on the… read more here.
Keywords: end guadalupian; bioturbation; sulfur isotope; deep water ... See more keywords
Benthic bioturbation: A canary in the mine for the retention and release of metals from estuarine sediments.
Sign Up to like & getrecommendations! Published in 2021 at "Marine pollution bulletin"
DOI: 10.1016/j.marpolbul.2021.112912
Abstract: After the largest mining tailings spill in Brazil, the Rio Doce estuarine ecosystem was severely impacted by metal contamination. In a 28-day laboratory experiment, we examined the effects of the polychaeta Laeonereis sp. on fluxes… read more here.
Keywords: mine retention; benthic bioturbation; release; canary mine ... See more keywords
Bioturbation-influenced fluid pathways within a carbonate platform system: The Lower Cretaceous (Aptian–Albian) Glen Rose Limestone
Sign Up to like & getrecommendations! Published in 2017 at "Palaeogeography, Palaeoclimatology, Palaeoecology"
DOI: 10.1016/j.palaeo.2016.10.025
Abstract: Abstract The Aptian–Albian Glen Rose Limestone (GRL) is an argillaceous shallow-marine carbonate deposit on the Central Texas Platform and contains the upper Trinity aquifer and the upper part of the middle Trinity aquifer. The GRL… read more here.
Keywords: fluid; fluid pathways; albian glen; bioturbation ... See more keywords