Spatial distribution of hypogean invertebrates in an alluvial aquifer polluted by iron and manganese, Rhône River, France

Malard, Florian; Reygrobellet, J. L.; Laurent, Roger

doi:10.1080/03680770.1995.11900996

Cited by 3 publications

(5 citation statements)

References 3 publications

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“…Our results are also consistent with those of Verdenal for Mn concentration, which did not vary significantly within the Cortiou area, and was only considerably higher in sponges collected at Lavera, near the Rho ˆne estuary. Mn could be thus confirmed as a good indicator of the Rho ˆne river influence (Malard et al, 1998;Younes, 2000). Cu concentration was also relatively homogenous within the area, except in the sites nearest to a source of contamination: urban source at the Cortiou and Niolon sites and industrial source in Lavera.…”

Section: Discussionmentioning

confidence: 93%

Effects of 12 years’ operation of a sewage treatment plant on trace metal occurrence within a Mediterranean commercial sponge (Spongia officinalis, Demospongiae)

Pérez

Longet

Schembri³

et al. 2005

Marine Pollution Bulletin

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Section: Discussionmentioning

confidence: 93%

Effects of 12 years’ operation of a sewage treatment plant on trace metal occurrence within a Mediterranean commercial sponge (Spongia officinalis, Demospongiae)

Pérez

Longet

Schembri³

et al. 2005

Marine Pollution Bulletin

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“…Infant and toddler formula powders are often reconstituted with tap water and sometimes with mineral water [76,77]. While most tap water in the US and France has a Mn concentration below 50 µg/L, a level referenced by some drinking water guidelines due to aesthetic concerns such as staining laundry or plumbing fixtures [78,79], water from some sources, especially groundwater, may contain considerably higher concentrations of Mn [79][80][81]. Water from public sources occasionally exceeds the United States Environmental Protection Agency (U.S. EPA) Lifetime…”

Section: Effect Of Water Mn Content On Mn Exposures Due To Infant Formentioning

confidence: 99%

Estimating daily intakes of manganese due to breast milk, infant formulas, or young child nutritional beverages in the United States and France: Comparison to sufficiency and toxicity thresholds

Mitchell¹,

Frisbie

Roudeau

et al. 2020

Preprint

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Laboratories provided no input in choosing the subject matter of this project, the hypotheses that were tested, the method of analysis, the research findings, the decision to publish, or the manner of disseminating the results. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. Highlights1. Mn deficiency is unlikely with exclusive breast milk or infant formula feeding.2. Breast milk Mn mean intake is 1.2 µg/kg/day (3 weeks)-0.16 µg/kg/day (18 months).3. Formula Mn intake range is 130 µg/kg/day (3 weeks)-4.8 µg/kg/day (18 months). 4. Formula products reconstituted with 250 µg Mn/L water may exceed 140 µg Mn/kg/day. 5. Formula products may surpass regulatory tolerable daily intake levels for Mn. Abstract BackgroundAlthough manganese (Mn) is an essential nutrient, recent research has revealed that excess Mn in early childhood may have adverse effects on neurodevelopment. MethodsWe estimated daily total Mn intake due to breast milk at average body weights by reviewing reported concentrations of breast milk Mn and measurements of body weight and breast milk intake at 3 weeks, 4.25 months, 7 months, and 18 months. We compared these figures to the Mn content measured in 44 infant, follow-up, and toddler formulas purchased in the United States and France. We calculated Mn content of formula products made with ultra-trace elemental analysis grade water (0 µg Mn/L) and with water containing 250 µg Mn/L, a concentration which is relatively high but less than the World Health Organization Health-based value of 400 µg Mn/L or the United States Environmental Protection Agency Health Advisory of 350 µg Mn/L. ResultsEstimated mean daily Mn intake from breast milk ranged from 1.2 µg Mn/kg/day (3 weeks) to 0.16 µg Mn/kg/day (18 months), with the highest intakes at the youngest age stage we considered, 3 weeks. Estimated daily Mn intake from formula products reconstituted with 0 µg Mn/L water ranged from 130 µg Mn/kg/day (3 weeks) to 4.8 µg Mn/kg/day (18 months) with the highest intakes at 3 weeks. Formula products provided 28 to 520 times greater than the mean daily intake of Mn from breast milk for the 4 age stages that we considered. Estimated daily Mn intake from formula products reconstituted with water containing 250 µg Mn/L ranged from 12 µg Mn/kg/day to 170 µg Mn/kg/day, which exceeds the United States Environmental Protection Agency Reference Dose of 140 µg Mn/kg/day for adults. ConclusionsMn deficiency is highly unlikely with exclusive breast milk or infant formula feeding, but established tolerable daily intake levels for Mn may be surpassed by some of these products when following labeled instructions.

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“…They show marked differences in microhabitat preference (Galassi, 2001; and references therein) and sensitivity to anthropogenic disturbance, including human‐induced alterations in water chemistry and hydrological regime of ground water (Dole‐Olivier et al. , 1994; Dole‐Olivier, Marmonier & Beffy, 1997; Rundle & Ramsay, 1997; Malard, Reygrobellet & Laurent, 1998; Paran et al. , 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Their substantial diversity in body morphology and degree of adaptation to life in groundwater suggests that copepods may be good indicators of habitat heterogeneity. They show marked differences in microhabitat preference (Galassi, 2001; and references therein) and sensitivity to anthropogenic disturbance, including human-induced alterations in water chemistry and hydrological regime of ground water (Dole-Olivier et al, 1994;Dole-Olivier, Marmonier & Beffy, 1997;Rundle & Ramsay, 1997;Malard, Reygrobellet & Laurent, 1998;Paran et al, 2005). Additionally, copepods may serve as useful biological indicators of subsurface-surface water connectivity Di Lorenzo et al, 2005b) and provide information on past geological, climatic and geographical events (Galassi, 2001;Castellarini et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Diversity, ecology and evolution of groundwater copepods

2009

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SUMMARY1. With few exceptions, copepods dominate over other crustacean and non-crustacean invertebrate groups in ground water. They have colonised a vast array of habitats in continental ground waters, where they are represented by over 1000 species in six orders: Platycopioida, Misophrioida, Calanoida, Cyclopoida, Harpacticoida, Gelyelloida. However, members of only the last four orders entered genuine fresh ground water. 2. Stygobiotic copepods show a wide range of morphological and physiological adaptations to different groundwater habitats. They frequently exhibit simplifications in body plans, including reductions in appendage morphology, which is regarded as a result of paedomorphic heterochronic events. 3. Copepod distributions at small spatial scales are most strongly affected by habitat type and heterogeneity, with sediment grain size and availability of organic matter being important habitat characteristics. Large-scale spatial distributions (biogeographical) are mainly related to past geological, climatic and geographical processes which occurred over medium to long time scales. 4. Such processes have affected colonisation patterns and diversification of copepods in ground water, leading to a number of phylogenetic and distributional relicts and a high degree of endemism at different taxonomic levels. This is reflected in the composition of groundwater copepod communities characterised by distantly related species in the phylogenetic tree. 5. Copepods dominate the species richness of groundwater fauna in all regions and on all continents where more than cursory surveys have been carried out, i.e. in Europe, North and Latin America as well as in Australia. 6. Species-specific microhabitat preferences, high proportions of local endemics, high proportions of phylogenetic and distributional relicts, and higher-level taxonomic diversity are all factors suggesting that copepods are a useful indicator group of overall species richness for defining conservation priorities in ground water.

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Spatial distribution of hypogean invertebrates in an alluvial aquifer polluted by iron and manganese, Rhône River, France

Cited by 3 publications

References 3 publications

Effects of 12 years’ operation of a sewage treatment plant on trace metal occurrence within a Mediterranean commercial sponge (Spongia officinalis, Demospongiae)

Effects of 12 years’ operation of a sewage treatment plant on trace metal occurrence within a Mediterranean commercial sponge (Spongia officinalis, Demospongiae)

Estimating daily intakes of manganese due to breast milk, infant formulas, or young child nutritional beverages in the United States and France: Comparison to sufficiency and toxicity thresholds

Diversity, ecology and evolution of groundwater copepods

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