Trace Elements and Carbon and Nitrogen Stable Isotopes in Organisms from a Tropical Coastal Lagoon

Pereira, Adriana Alves; Hattum, A.G.M. van; Boer, Jacob de; Bodegom, Peter M. van; Rezende, Carlos Eduardo de; Salomons, Wim

doi:10.1007/s00244-010-9489-2

Cited by 31 publications

(25 citation statements)

References 42 publications

(54 reference statements)

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“…Thus it is expected that trace element concentrations can be highly variable among different phyla in the environments. Possible explanations for the variability in trace element concentrations include species-specific differences in bioaccumulation dynamics as well as differences in trace element exposure, such as those related to dietary preferences, feeding behaviour, food chain structure, and trophic position [34,35].…”

Section: Downloaded By [Selcuk Universitesi] At 05:53 05 February 2015mentioning

confidence: 99%

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Biomagnification of trace elements in a benthic food web: the case study of Deer Island (Northern Yellow Sea)

Zhao

Yang

Yan

2013

Chemistry and Ecology

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In this study, we investigated the concentrations of ten trace elements (Cu, Zn, Mn, Se, Ni, Cd, Cr, Pb, Hg, and As) and their trophodynamics in a benthic food chain of Deer Island, Northern Yellow Sea. The concentrations of Cu, Zn, Mn, Se, Ni, Cd, Cr, Pb, Hg, and As in the food chain ranged from 3.2 to 23.2, from 71 to 227, from 7.4 to 45.6, from 0.44 to 5.80, from 0.73 to 7.60, from 0.14 to 1.65, from 0.68 to 6.70, from 0.08 to 1.86, from 0.08 to 1.18, and from 0.24 to 3.92 mg kg −1 dry weight, respectively. Among these trace elements, the linear regression between the log-transformed concentrations of Hg and Cd and δ 15 N values showed statistically significant increase (p < 0.05) with the slopes of 0.134 and 0.144, indicating biomagnification of Hg and Cd occurred in the benthic food chain of Deer Island. While the linear regression for other eight trace elements (Cu, Zn, Mn, Se, Ni, Cr, Pb and As) were characterised by extensive scatter with non-significant correlation coefficients (R 2 = 0.002-0.235) and slopes (p = 0.079-0.875), indicating there were not biomagnified or biodiluted of these trace elements.

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Section: Downloaded By [Selcuk Universitesi] At 05:53 05 February 2015mentioning

confidence: 99%

“…Trace elements, whether of natural or anthropogenic origin, are present in all marine ecosystems throughout the world [1]. Some trace elements (Zn, Mn, Cu, Fe, etc.)…”

Section: Introductionmentioning

confidence: 99%

Biomagnification of trace elements in a benthic food web: the case study of Deer Island (Northern Yellow Sea)

Zhao

Yang

Yan

2013

Chemistry and Ecology

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“…A tropical coastal lagoon located in Southeast Brazil that receives runoff from iron ore mining and processing activities was studied to assess the differences in trace element accumulation patterns in sediment and to investigate relationships between metal accumulation and trophic status of the organisms (Pereira et al, 2010). Trace element accumulation in biota depended not only on the trophic position of the organisms but also on the functional ecological guilds of the species involved.…”

Section: The Consumers At Riskmentioning

confidence: 99%

Mercury in tropical and subtropical coastal environments

Costa

Landing

Kehrig

et al. 2012

Environmental Research

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Anthropogenic activities influence the biogeochemical cycles of mercury, both qualitatively and quantitatively, on a global scale from sources to sinks. Anthropogenic processes that alter the temporal and spatial patterns of sources and cycling processes are changing the impacts of mercury contamination on aquatic biota and humans. Human exposure to mercury is dominated by the consumption of fish and products from aquaculture operations. The risk to society and to ecosystems from mercury contamination is growing, and it is important to monitor these expanding risks. However, the extent and manner to which anthropogenic activities will alter mercury sources and biogeochemical cycling in tropical and sub-tropical coastal environments is poorly understood. Factors as (1) lack of reliable local/regional data; (2) rapidly changing environmental conditions; (3) governmental priorities and; (4) technical actions from supra-national institutions, are some of the obstacles to overcome in mercury cycling research and policy formulation. In the tropics and sub-tropics, research on mercury in the environment is moving from an exploratory “inventory” phase towards more process-oriented studies. Addressing biodiversity conservation and human health issues related to mercury contamination of river basins and tropical coastal environments are an integral part of paragraph 221 paragraph of the United Nations document “The Future We Want” issued in Rio de Janeiro in June 2012.

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“…Because previous studies have shown that some elements, such as Fe and Cu, reached high levels in the livers of fish collected in this lagoon [19], we were interested in finding out what possible associations there might be between Fe (and Cu, Zn, Mn, Al, Cr, Pb, Ni, Cd, As, and Hg) and the antioxidant vitamin A in fish livers.…”

Section: Introductionmentioning

confidence: 98%

Hepatic retinoid levels in seven fish species (teleosts) from a tropical coastal lagoon receiving effluents from iron‐ore mining and processing

Pereira

Hattum

Brouwer

2011

Enviro Toxic and Chemistry

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The present study was undertaken to investigate the possible effects of Fe and trace element exposure on hepatic levels of retinoids in seven fish species. Concentrations of retinoids were measured in fish collected from a coastal lagoon in Brazil that receives effluents from an iron-ore mining and processing plant. Fish from nearby coastal lagoons were also included to assess possible differences related to chemical exposure. Results indicated considerable differences in hepatic retinoid composition among the various species investigated. The most striking differences were in retinol and derivative-specific profiles and in didehydro retinol and derivative-specific profiles. The Perciformes species Geophagus brasiliensis, Tilapia rendalli, Mugil liza, and Cichla ocellaris and the Characiforme Hoplias malabaricus were characterized as retinol and derivative-specific, while the Siluriformes species Hoplosternum littorale and Rhamdia quelen were didehydro retinol and derivative-specific fish species. A negative association was observed between Al, Pb, As, and Cd and hepatic didehydro retinoid levels. Fish with higher levels of hepatic Fe, Cu, and Zn showed unexpectedly significant positive correlations with increased hepatic retinol levels. This finding, associated with the positive relationships between retinol and retinyl palmitate with lipid peroxidation, may suggest that vitamin A is mobilized from other tissues to increase hepatic antioxidant levels for protection against oxidative damage. These data show significant but dissimilar associations between trace element exposure and hepatic retinoid levels in fish species exposed to iron-ore mining and processing effluents, without apparent major impacts on fish health and condition.

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Trace Elements and Carbon and Nitrogen Stable Isotopes in Organisms from a Tropical Coastal Lagoon

Cited by 31 publications

References 42 publications

Biomagnification of trace elements in a benthic food web: the case study of Deer Island (Northern Yellow Sea)

Biomagnification of trace elements in a benthic food web: the case study of Deer Island (Northern Yellow Sea)

Mercury in tropical and subtropical coastal environments

Hepatic retinoid levels in seven fish species (teleosts) from a tropical coastal lagoon receiving effluents from iron‐ore mining and processing

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