Trace metal accumulation by algae in Sepetiba Bay, Brazil

Karez, C. S.; Magalhães, Valéria Freitas de; Pfeiffer, Wolfgang C.; Filho, Gilberto M. Amado

doi:10.1016/0269-7491(94)90157-0

Cited by 115 publications

(48 citation statements)

References 12 publications

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“…This was done by analysis of metal concentrations in marine benthic organisms: Crassostrea rhizophorae which is a typical sentinel organism (Lima et al, 1986;Wallner-Kersanach et al, 2000;Rebelo et al, 2003) abundant in the mangroves and reefs along the coast, the seagrass Halodule wrightii, which forms extensive beds on the shallow sea bottom (Amado Filho et al, 2004) and Padina gymnospora and Sargassum sp., two abundant seaweed species in Brazilian tropical areas (Karez et al, 1994a;Amado Filho et al 1999). …”

Section: Metais Pesados Em Organismos Bentônicos Da Baía De Todos Os mentioning

confidence: 99%

Heavy metals in benthic organisms from Todos os Santos Bay, Brazil

et al. 2008

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The marine ecosystems of Todos os Santos Bay (TSB, The State of Bahia, Brazil) have been impacted by the presence on its coast of a large metropolitan area as well as of chemical and petrochemical activities. Despite its ecological importance, there is a lack of scientific information concerning metal contamination in TSB marine biota. Thus, we analyzed concentrations of metals in four species of marine benthic organisms (two seaweeds, Padina gymnospora and Sargassum sp. one seagrass, Halodule wrightii and one oyster, Crassostrea rhizophorae) in three sites from the TSB region that have been most affected by industrial activities. The concentrations of Al, Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn were determined by Atomic Absorption Spectrophometry. The obtained data indicates that cadmium and copper in seaweeds, oysters and seagrass, as well as Ni concentrations in oysters, were in range of contaminated coastal areas. Cadmium and copper are available to organisms through suspended particles, dissolved fraction of water column and bottom sediment interstitial water. As oysters and other mollusks are used as food sources by the local population, the metal levels found in oysters in TSB may constitute a health risk for this population. Our results suggest implanting a heavy metals biomonitoring program in the TSB marine ecosystems.Keywords: seaweed, seagrass, oyster, bioaccumulation, Todos os Santos Bay. Metais pesados em organismos bentônicos da Baía de Todos os Santos, Brasil ResumoA Baía de Todos os Santos (TSB, Estado da Bahia, Brasil), vem sendo impactada pela presença, em seu entorno, de uma extensa área metropolitana e por atividades químicas e petroquímicas. Apesar de sua importância ecológica, existe pouca informação sobre a contaminação da biota marinha da TSB por metais pesados. Neste contexto, foram analisadas as concentrações de metais em quatro espécies de organismos bentônicos: duas algas, Padina gymnospora e Sargassum sp.; uma grama marinha, Halodule wrightii; e uma ostra, Crassostrea rhizophorae, em três locais das regiões da TSB mais afetadas pelas atividades industriais. As concentrações de Al, Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn foram determinadas por espectrofotometria de absorção atômica. Os resultados obtidos indicaram que o cádmio e o cobre em algas, gramas marinhas e ostras, assim como o níquel em ostras estão, em concentrações de áreas contaminadas. Pelos resultados obtidos o cádmio e o cobre estão biodisponíveis a partir das partículas de sedimento em suspensão, fração dissolvida da coluna da água e da água intersticial do sedimento de fundo. Como ostras e outros moluscos são utilizados como fonte de alimento pelas populações locais, as concentrações de metais encontradas nas ostras da TSB podem constituir risco para as populações humanas locais. Os resultados obtidos sugerem a necessidade de implementação de um programa de monitoramento das concentrações de metais pesados em organismos dos ecossistemas marinhos da TSB.Palavras-chave: macroalgas, gramas marinhas, ostras, bioacumulação, Ba...

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Section: Metais Pesados Em Organismos Bentônicos Da Baía De Todos Os mentioning

confidence: 99%

Heavy metals in benthic organisms from Todos os Santos Bay, Brazil

et al. 2008

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“…The red algae A. najadiformis and L. papillosa, were common in most stations. By comparing with L. papillosa, the distribution of metals in A. najadiformis along most stations was changed, showing that, 1) the different uptake from different populations of the species, 2) the stage of development and 3) the presence of different metallic contaminants are other important factors modifying metal bioaccumulation by algae (Karez et al, 1994).…”

Section: Resultsmentioning

confidence: 99%

Levels of Trace Metals in Marine Macro Algae From Bitter Lakes, Suez Canal, Egypt,

Mohamed

2007

Egypt. J. of Aquatic Biolo. and Fish.

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T he levels of trace metals (Ni, Co, Cu, Fe, Zn, Cd and Pb) were determined in ten macroalgal species (green algae: Enter omorpha compressa and Cladophora albida; brown algae:, Sargassum dentifolium, Cystoseira yrica, Padina pavonia; red algae: Acanthophora najadiforrnis, Laurencia papillosa, Ceramium tenuissima, Polysiphonia figariana, Hypnea cornuta) collected from six sites along Bitter lakes (Suez Canal, Egypt). The relative abundance of trace metals in algal species decreased m the order (Fe> Zn> Ni> Cu> Pb> Co> Cd). The highest concentration of Co ( 1.17 jig/g dry wt.) and Pb ( 8.00 ug/g dry wt.) were found in brown algae C. myrica, while Cd ( 1.00 ug/g ) and Cu ( 16.92 ug/g dry wt) were "recorded in P. pavonia and S. dentifolium^ respectively. In red algae, the highest value of Ni (9.28 ug/g dry wt.), Zn (36.50 ug/g dry wt.) and Fe (502.20 ug/g dry wt.) were observed in A. najadiformis, P. figariana^and H. cornuta, respectively. According to the local variation of metals in the investigated area, the highest values of most metals (Ni, Cu, Fe, Zn and Pb) were recorded in front of Fayed (site III) which is the biggest village in the bitter Lakes area and receives agricultural and domestaic drains in addition to the effluent from the vessels crossing the Suez Canal. Inter -elemental relationships were studied and showed positive significant correlation (p < 0.05) between Ni -Fe (r = 0.63), Ni -Zn (r = 0.47), Co -Fe (r = 0.52), Zn -Cd (r = 0.41) and between Zn-Pb(r = 0.49).The present study recommended that the pollution sources at Fayed, which considered as fishing and recreational marine area, must be controlled. As well as, some algal species can be used as a good target for monitoring metals pollution in Bitter Lakes.

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“…Furthermore, examination of the correlation matrix between variables (Figure 4), revealed the presence in the corallina of a positive significant correlation between Cd and Pb which may have a common source which is sediment or seawater, on the other hand, a negative correlation between Zn and Pb in this alga, may indicate that they are competing for the binding sites of the alga [15], or they are transported in these stations from different sources and follow a pattern of distribution [16]. On the other hand, the trend of BSAF in Corallina officinalis was in the ordre: Cd > Pb > Ni > Cu > Zn > Fe.…”

Section: Resultsmentioning

confidence: 99%

Use of Sediment and Algae for Biomonitoring the Coast of Honaïne (Far West Algerian)

Allam¹,

Aouar²,

Benguedda³

et al. 2016

OJE

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Concentrations of Fe, Cu, Pb, Zn, Cd and Ni were determined in the red alga Corallina officinalis (Linnaeus, 1758), the green alga Ulva lactuca (Linnaeus, 1753) and sediment sampled in four stations of the coastline of Honaïne (extreme Western Algeria). The abundance of metal concentrations in algae and sediment samples, is in the following order: Fe > Zn > Pb > Ni > Cu > Cd. The schematic representation by PCA reflects a strong correlation of the corallina with Cd and Pb, the ulva with Zn and Ni and sediment with Cu and Fe, in addition, to homogeneity of rehearsals in each matrix. The results of this study validate the use of these species as reliable tools for biomonitoring of metal pollution of coastal ecosystems, even if the levels of heavy metals in sediment and algae from the coastline of Honaïne are in general, very low compared with those from other geographic areas and by guidelines.

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Trace metal accumulation by algae in Sepetiba Bay, Brazil

Cited by 115 publications

References 12 publications

Heavy metals in benthic organisms from Todos os Santos Bay, Brazil

Heavy metals in benthic organisms from Todos os Santos Bay, Brazil

Levels of Trace Metals in Marine Macro Algae From Bitter Lakes, Suez Canal, Egypt,

Use of Sediment and Algae for Biomonitoring the Coast of Honaïne (Far West Algerian)

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Trace metal accumulation by algae in Sepetiba Bay, Brazil

Cited by 115 publications

References 12 publications

Heavy metals in benthic organisms from Todos os Santos Bay, Brazil

Heavy metals in benthic organisms from Todos os Santos Bay, Brazil

Levels of Trace Metals in Marine Macro Algae From Bitter Lakes, Suez Canal, Egypt,

Use of Sediment and Algae for Biomonitoring the Coast of Hona&#239;ne (Far West Algerian)

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Use of Sediment and Algae for Biomonitoring the Coast of Honaïne (Far West Algerian)