Metal profiles used as environmental markers of Green Turtle (Chelonia mydas) foraging resources

Talavera-Saenz, Ana; Gardner, Susan C.; Rodriquez, Rafael Riosmena; Vargas, Baudilio Acosta

doi:10.1016/j.scitotenv.2006.10.012

Cited by 52 publications

(16 citation statements)

References 23 publications

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“…Concerning metal contaminants, an assessment of available data indicates that concentrations of the essential elements (Zn and Cu) and non-essential elements (Cd) in sea turtles vary greatly among species (Caurant et al 1999;Godley et al 1999;Gardner et al 2006;Andreani et al 2008;Storelli et al 2008), and in the case of Cd, it can be inexplicably high (Caurant et al 1999;Sakai et al 2000;Anan et al 2001;Lam et al 2004;Gardner et al 2006;Andreani et al 2008;Storelli et al 2008). Thus, sea turtles are of increasing interest as potential bioindicators or sentinels of heavy metal pollution in marine ecosystems (Talavera-Saenz et al 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Currently, very little is known regarding the levels of heavy-metal contaminants and their potential cytotoxic impact on a sea turtle's daily life, growth, and survival. Major challenges associated with these studies are directly related to the difficulty in obtaining protected marine animals or their tissue specimens for in vivo and in vitro experimental tests and risky/lethal invasive techniques to collect biopsies (Aguirre et al 1994;Sakai et al 1995Sakai et al , 2000Anan et al 2001;Franzellitti et al 2004;Torrent et al 2004;Maffucci et al 2005;Storelli et al 2005Storelli et al , 2007Storelli et al , 2008Gardner et al 2006;Talavera-Saenz et al 2007;Andreani et al 2008).…”

Section: Introductionmentioning

confidence: 99%

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Validation of an in vitro cytotoxicity test for four heavy metals using cell lines derived from a green sea turtle (Chelonia mydas)

Tan

Wang

et al. 2009

Cell Biol Toxicol

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Ten cell lines established from juvenile green sea turtles were tested and evaluated for their cytotoxic responses to four heavy metals: cadmium (Cd), chromium (Cr), zinc (Zn), and copper (Cu). Following a 24-h exposure to these metal salts at selected concentrations, test cells were comparatively characterized by morphology, viability, and proliferation. Experimental results indicated that all these metal salts were cytotoxic to these turtle cell lines at varied concentrations. Calculated 10% and 50% inhibitory concentration (IC(10) and IC(50)) values revealed that the cytotoxicities of Cd and Cr were significantly more potent than the other two metal salts (p < 0.01). Comparative analysis of IC(10) values in these ten cell lines showed that turtle lung cells (GT-LG) are the most sensitive cell line to Cd, Cr, Zn, and Cu. Among these turtle cell lines, turtle liver cells (GT-LV) are more tolerant than other cells to Cd, Cr, and Zn, while GT-EYE cells are more tolerant to Cu, as determined by IC(50) values. Overall, GT-LG represents the most sensitive cells to heavy metal contamination and may be used for initial environmental monitoring, while the highly tolerant nature of GT-LV and GT-EYE cells to the tested heavy metals suggest their potential use as an emergency last-resort indicator of potential metal-related adverse effect on human health.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Validation of an in vitro cytotoxicity test for four heavy metals using cell lines derived from a green sea turtle (Chelonia mydas)

Tan

Wang

et al. 2009

Cell Biol Toxicol

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“…On the other hand, nonessential metals are not involved in any metabolic process but its accumulation in tissues is an indication of environmental pollution of heavy metals [11]. Heavy metals are known to cause serious diseases especially when they are found excessively in animals and plants [3,14,15] found 15 heavy metals in marine fish and bivalves in the Gulf of Oman and Arabian Gulf. Al-Rawahi et al [2] reported the presence of 12 different heavy metals in eggs and hatchlings of green turtles in Oman which is resulted from contaminated effluent.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal contamination from treated sewage effluents

2012

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Excessive exposure of heavy metals is known to have deleterious effects on health and has been shown to cause various diseases. The determination of heavy metals in sewage is important for monitoring environmental pollution caused by treated sewage effluents (TSE). Rare rainfall in Oman and lack of fresh water has led the authorities to recycle sewage effluents. However, the environmental impact related to heavy metals in sewage effluents is a serious health issue. Three sewage treatment plants (STPs) were used in this study. Water and sewage samples were analyzed for heavy metals; Al, As, B, Cd, Co, Cr, Cu, Fe, Hg, Mn, Mo, NI, Pb, V and Zn using Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) type Perkin Elmer 3300 DV ICP. Heavy metal concentration in the three STPs varied significantly and it was in correlation with heavy metals in sludge and soil irrigated with TSE. STPs used in industrial areas had higher concentration of heavy metals compared to STPs from residential communities, hospitals, and public institutions. In general, the highest concentration among the heavy metals from sludge was Pb, Hg, Cu, Cr, Ni, Zn and Cd. The results of this investigation indicates that there is a potential threat reusing recycled water and sludge which can infiltrate livestock, wildlife which impose the risk of spreading human diseases.

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“…In marine systems, natural processes (e.g., upwelling, river runoff) can redistribute and concentrate heavy metals in the environment, occasionally reaching toxic levels (Sparling et al, 2000;Machado et al, 2002). The effects of these processes may vary over seasonal and spatial scales (Sawidis et al, 2001) and their understanding can aid in determining the sources as biomonitors (Szefer et al, 1998;Páez-Osuna et al,2000), and ultimately their effects on wild life (Sparling et al, 2000;Talavera-Saenz et al, 2007). Also, they can be used for bioabsorption in contaminated waters (Kumar and Kaladharan, 2006).…”

Section: Introductionmentioning

confidence: 99%

The Foragining Ecology of the Green Turtle in the Baja California Peninsula: Health Issues

Riosmena‐Rodríguez¹,

Talavera-Saenz²,

Hinojosa‐Arango³

et al. 2011

Health Management - Different Approaches and Solutions

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Metal profiles used as environmental markers of Green Turtle (Chelonia mydas) foraging resources

Cited by 52 publications

References 23 publications

Validation of an in vitro cytotoxicity test for four heavy metals using cell lines derived from a green sea turtle (Chelonia mydas)

Validation of an in vitro cytotoxicity test for four heavy metals using cell lines derived from a green sea turtle (Chelonia mydas)

Heavy metal contamination from treated sewage effluents

The Foragining Ecology of the Green Turtle in the Baja California Peninsula: Health Issues

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