Influences of Dietary Uptake and Reactive Sulfides on Metal Bioavailability from Aquatic Sediments

Lee, Byeong-Gweon; Griscom, Sarah B.; Lee, Jung-Suk; Choi, Heesun; Koh, Chul-Hwan; Luoma, Samuel N.; Fisher, Nicholas S.

doi:10.1126/science.287.5451.282

Cited by 229 publications

(213 citation statements)

References 18 publications

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“…Low BAFs values for this group of organisms could, therefore, be due the use of water and sediments data in computing BAFs. Similar results have been reported by Lee, B. G., et al [52] that most benthic organisms obtain a large fraction of their contaminants through ingestion and not by direct accumulation from overlying water or pore-water. Similarly, the BAFs for mercury in fish from coastal marine area of Tanzania were low and not significant.…”

Section: Mercurysupporting

confidence: 79%

Concentration and Biomagnification of Heavy Metals in Biota of the Coastal Marine Areas of Tanzania

Bungala¹,

Machiwa²,

Shilla³

2017

JESE-B

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Abstract:The concentrations of heavy metals (As, Hg, Cr, Pb and Zn) were measured in the macroalgae, macrobenthos and fish from the Tanzanian coastal marine environment in order to ascertain the biomagnification using stable isotopes of C and N. Macroalgae samples from the central marine areas of the Tanzanian coast had higher mean concentrations of Hg (0.17 ± 0.01 µg/g) and Cr (23.7 ± 4.15 µg/g) compared to other locations. Higher concentration of Hg (0.06 ± 0.02 µg/g) was detected in the Ulva fasciata close to the Msimbazi Creek in Dar es Salaam, whereas the highest concentration of Cr (45.5 ± 6.83 µg/g) was found in Ulva petrusa near Dar es Salaam port. The crab Portunus pelagicus collected from Pangani river estuary contained 411.5 ± 13.04 µg/g of Zn. The other metals were uniformly distributed in macrobenthos from the entire coast. Mercury and lead in the biota were found to biomagnify along the Arius dussumieri and Lethrinus lentjan food chains as suggested by the significant positive relationships between log-pollutant concentrations in fish muscle tissues vs. δ 15 N signatures. Zinc in muscle tissues was found to be transferred along the food webs although no biomagnification was observed. Arsenic and chromium were found to decrease with the rise of the trophic position. Metal concentrations in macroalgae, macrobenthos and fish were compared with quality guidelines values by FAO (Food and Agricultural Organization) in 1983 and they all were below permissible limits for human consumption.

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Section: Mercurysupporting

confidence: 79%

Concentration and Biomagnification of Heavy Metals in Biota of the Coastal Marine Areas of Tanzania

Bungala¹,

Machiwa²,

Shilla³

2017

JESE-B

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“…Cd concentrations in nymphs were not directly related to those in either the sediment or the water of our study rivers, which suggests that both the bioavailability of metals in exposure media (Bryan and Langston 1992;Ankley 1996;Croteau et al 2002b) and the burrowing and feeding behavior of animals (Lee et al 2000;Wang et al 2001) need to be considered to relate metal concentrations in animals to those in their environs. The similarity in steady-state [Cd] between nymphs in containers and the environs suggests that bioavailable Cd concentrations in sediments were similar between the containers and their surroundings.…”

Section: Discussionmentioning

confidence: 94%

Exchange rates of cadmium between a burrowing mayfly and its surroundings in nature

Michaud¹,

Hare²,

Campbell³

2005

Limnol. Oceanogr.

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We conducted a reciprocal transfer of nymphs of the burrowing mayfly Hexagenia limbata between two rivers harboring populations of this insect that differed in their cadmium (Cd) concentrations. We measured Cd uptake and loss rates simultaneously in the field at several levels of biological organization: in the gut and body of whole nymphs as well as in three subcellular fractions. The most marked changes in Cd concentrations occurred in the insect's gut, where Cd was largely associated with heat-stable proteins, a fraction that includes the metal-binding protein metallothionein. Because most of the Cd that entered nymphs was detoxified in this manner, we would not expect it to have direct toxic effects; however, it would be readily transferred to higher trophic levels. Our data on subcellular partitioning suggest that there is a fast-exchanging pool of Cd bound to heat-stable proteins such as metallothionein and a slowexchanging pool bound to either or both of the remaining fractions (heat-denatured proteins; remainder, which includes exoskeleton and granules). Nymphs of H. limbata responded rapidly to changes in bioavailable Cd, which suggests that they would be useful for monitoring changes in ambient Cd for weeks or months in the field. A one-compartment model successfully explained the changes we observed in nymph Cd values. Furthermore, values of the model constant for Cd loss were close to those reported for Hexagenia rigida in the laboratory, which suggests that accumulation patterns observed in the laboratory can be representative of those measured in nature.

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“…Therefore applying this theory to metal remobilization studies would be proper only in the case that sulfides are not oxidized during elutriation (Di Toro et al, 1990;Durán et al, 2012). During the past years, much evidence has shown that benthic invertebrates can accumulate metals, even when [SEM]-[AVS] < 0, since benthic invertebrates ingest sediment particles as their main food source disregarding AVS (Lee et al, 2000a;Lee et al, 2000b;De Jonge et al, 2009;De Jonge et al, 2010). YHH3 YHH2 YHH1 GLH3 GLH2 GLH1 YHH-GLH ZMH2 ZMH1 ZM-YHH L1 L2 L3 L4 L5 MH6 MH5 XQH4 XQH3 XQH2 XQH1 K1 K2 K3 MH4 MH3 MH2 MH1 J1 J2 J3 J4 BLH3 BLH2 BLH1 I1 I2 I3 DH2 DH1 YH5 YH4 YH3 YH2 YH1 H1 H2 H3 WH3 WH2 WH1 JLH2 SEMs can be combined with AVS to reduce their toxicity; however, AVS of excessively high content is also harmful to aquatic organism.…”

Section: The Limitations Of Avs-sem Evaluation Methodsmentioning

confidence: 99%

Acid-volatile sulfide and simultaneously extracted metals in surface sediments of the southwestern coastal Laizhou Bay, Bohai Sea: Concentrations, spatial distributions and the indication of heavy metal pollution status

Zhuang

Gao

2013

Marine Pollution Bulletin

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a b s t r a c tSurface sediments were collected from the coastal waters of southwestern Laizhou Bay and the rivers it connects with during summer and autumn 2012. The acid-volatile sulfide (AVS) and simultaneously extracted metals (SEM) were measured to assess the sediment quality. The results showed that not all sediments with [SEM]-[AVS] > 0 were capable of causing toxicity because the organic carbon is also an important metal-binding phase in sediments. Suppose the sediments had not been disturbed and the criteria of US Environmental Protection Agency had been followed, heavy metals in this area had no adverse biological effects in both seasons except for few riverine samples. The major ingredient of SEM was Zn, whereas the contribution of Cd -the most toxic metal studied -to SEM was <1%. The distributions of AVS and SEM in riverine sediments were more easily affected by anthropogenic activity compared with those in marine sediments.

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Influences of Dietary Uptake and Reactive Sulfides on Metal Bioavailability from Aquatic Sediments

Cited by 229 publications

References 18 publications

Concentration and Biomagnification of Heavy Metals in Biota of the Coastal Marine Areas of Tanzania

Concentration and Biomagnification of Heavy Metals in Biota of the Coastal Marine Areas of Tanzania

Exchange rates of cadmium between a burrowing mayfly and its surroundings in nature

Acid-volatile sulfide and simultaneously extracted metals in surface sediments of the southwestern coastal Laizhou Bay, Bohai Sea: Concentrations, spatial distributions and the indication of heavy metal pollution status

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