Bioaccumulation of cadmium in marine organisms

Ray, Sayan Kumar

doi:10.1007/978-3-0348-7238-6_9

Cited by 24 publications

(6 citation statements)

References 110 publications

(31 reference statements)

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“…Although phosphorite is not a common source of Fe, this element in the marine environment indicates re-suspension of sediments derived from the continental crust (Elrod et al 2004). These five metals can be absorbed and accumulated by biota, including primary producers and their consumers (Ray 1984;Wang 2002;Ruelas-Inzunza and Pa´ez-Osuna 2008;Eisler 2010), suggesting that T. depressus and E. thouarsii could absorb and accumulate metals through consumption of macroalgae in habitats dominated by Sargassum, as found in other sea urchins in habitats dominated by macroalgae (Bohn 1979;Ahn et al 2009).…”

Section: Introductionmentioning

confidence: 90%

Concentrations of trace elements in sea urchins and macroalgae commonly present in Sargassum beds: implications for trophic transfer

Hernández-Almaraz

Méndez-Rodríguez

Zenteno‐Savín

et al. 2016

Ecological Research

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The aim of the study was to evaluate the dynamic of cadmium, lead, copper, zinc, and iron among lower trophic levels, sea urchins and macroalgae. Diets and isotopic values were used in combination to explore trophic positions and potential transference of metals from primary producers to consumers. Concentrations of trace elements were measured in two species of sea urchin (Tripneustes depressus and Eucidaris thouarsii) and nine macroalgae that are usually used as food in four Sargassum beds, one of which is close to a phosphorite mine. Specimens were collected when Sargassum fronds were at their greatest (winter) and lowest (summer) abundance. Highest concentrations of Cd, and Cu in both urchin species were recorded in winter at the site near the phosphorite mine. Concentrations of Pb in T. depressus were below the detectable limit, whereas E. thouarsii, which in addition to a high concentration of Pb, had high amounts of Cu and Zn. Gut content analysis, indicates that the diet of both sea urchins at the four sites and two collection dates is mainly macroalgae. The δ15N isotopic values in sea urchins in a typical Sargassum bed were in good agreement with a diet dominated by macroalgae, with T. depressus having herbivorous habits and E. thouarsii having omnivorous habits in this environment. We found macroalgae important in the dynamics of metals in food webs, potentially contributing to transferring Cd, Cu, and Zn to key invertebrate species, such as sea urchins, indicating connectivity of food webs and ecological structuring of marine environments.

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Section: Introductionmentioning

confidence: 90%

Concentrations of trace elements in sea urchins and macroalgae commonly present in Sargassum beds: implications for trophic transfer

Hernández-Almaraz

Méndez-Rodríguez

Zenteno‐Savín

et al. 2016

Ecological Research

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“…The highest levels of cadmium have been detected in the kidney and liver (Cattani et al, 1996;Olsson et al, 1996). Pollution of coastal waters by cadmium as a constituent of industrial and urban wastes occurs widely in the marine environment (Simpson, 1981;Zelikoff, 1993), which leads to considerable increases in cadmium concentrations in marine organisms (Ray, 1984). The toxic effects of cadmium have been studied in marine fish (Yamawaki et al, 1986;Reid and McDonald, 1988;Lemaire-Gony and Lemaire, 1992), but relatively few investigations have defined the ultrastructural alterations of important organs (liver and kidney) that occur after subchronic cadmium exposure.…”

Section: Introductionmentioning

confidence: 99%

Ultrastructural alterations in the liver and kidney of white sea bass, Lates calcarifer, in acute and subchronic cadmium exposure

Thophon

Pokethitiyook

Chalermwat

et al. 2004

Environmental Toxicology

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Ultrastructural alterations in the liver and kidney of 3-month-old white sea bass, Latescalcarifer, after cadmium exposure were studied by transmission electron microscopy (TEM). One group of fish was exposed to a cadmium concentration of 10 mg/L (acute) for 96 h in a static system, and another group was exposed to cadmium concentrations of 0.8 and 3 mg/L cadmium (subchronic) for 3 months in a recirculation closed system. Ultrastructural alterations observed in the hepatocytes included mitochondrial condensation, swelling, and lysis. The rough endoplasmic reticulum (RER) showed dilation, fragmentation, and vesiculation. After subchronic exposure there were numerous large lipid droplets and abundant stored glycogen. Ultrastructural alterations observed in the proximal tubules of the kidney included nuclear degeneration, condensation, and massive swelling of the mitochondria; RER fragmentation and vesiculation. Disorganized brush borders and increased numbers of large hydropic vacuoles and lysosomes were also observed.

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“…Low Cd content within corals located near ports and harbours has also been observed in other studies (McChonchie and Harriott 1992; Esslemont 2000) and was attributed to differences in water circulation and current distribution (McChonchie and Harriott 1992), as well as tissue regulation through assimilation of Cd into coral skeletons (Esslemont 2000). Heavy metals interact and compete for chemically similar ions when in solution (Ray 1986). The addition of Zn to seawater with Cd resulted in decreased Cd levels in the bivalves Mytilus edulis and Mulinia lateralis (Jackim et al 1977).…”

Section: Resultsmentioning

confidence: 99%

Sources and spatial distribution of heavy metals in scleractinian coral tissues and sediments from the Bocas del Toro Archipelago, Panama

Berry

Seemann

Dellwig

et al. 2013

Environ Monit Assess

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Marine ecosystems worldwide are threatened by aquatic pollution; however, there is a paucity in data from the Caribbean region. As such, five heavy metals (arsenic, cadmium, copper, zinc, mercury) were measured in tissues of the scleractinian corals Porites furcata and Agaricia tenuifolia and in adjacent sediments in the Bocas del Toro Archipelago, Panama. Samples were collected from five reef sites along a gradient of distance from an international shipping port and were analysed using inductively coupled plasma optical emission spectrometry and atomic absorption spectrophotometry for mercury. Copper and zinc were the most abundant metals and ranged from 11 to 63 mg kg−1 and from 31 to 185 mg kg−1 in coral tissues, respectively. The highest concentration of each metal was measured in P. furcata tissues, with copper and mercury concentrations significantly higher in P. furcata than in A. tenuifolia at every site. These results suggest that P. furcata has a higher affinity for metal accumulation and storage than A. tenuifolia. With the exception of cadmium, metal concentrations in coral tissues were generally elevated at coral reefs in closer proximity to the port; however, this pattern was not observed in sediments. Hard coral cover was lowest at reefs in closest proximity to the port, suggesting that metal pollution from port-related activities is influencing hard coral abundance at nearby coral reefs.

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Bioaccumulation of cadmium in marine organisms

Cited by 24 publications

References 110 publications

Concentrations of trace elements in sea urchins and macroalgae commonly present in Sargassum beds: implications for trophic transfer

Concentrations of trace elements in sea urchins and macroalgae commonly present in Sargassum beds: implications for trophic transfer

Ultrastructural alterations in the liver and kidney of white sea bass, Lates calcarifer, in acute and subchronic cadmium exposure

Sources and spatial distribution of heavy metals in scleractinian coral tissues and sediments from the Bocas del Toro Archipelago, Panama

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