Trace metal bioaccumulation in Israeli Mediterranean coastal marine mollusks

Shefer, Edna; Silverman, Jacob; Herut, Barak

doi:10.1016/j.quaint.2015.10.030

Cited by 23 publications

(8 citation statements)

References 45 publications

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“…However, Cd concentrations in the marine environment appear to show an overall decreasing trend, with reported decreasing concentrations in specimens caught in Turkey, and it was concluded that Cd poses little threat to the health of the human population (Korkmaz et al., 2019). In Israel, marine Cd input has been associated with industrial emission via river discharge (NAP, 2015; Shefer et al., 2015). Similar to Turkey, IOLR's monitoring program has also reported a local decrease in Cd along the coastline, translating to decreasing concentrations of Cd in sediments, suspended material, and molluscs (Herut et al., 2012; Shefer et al., 2015).…”

Section: Resultsmentioning

confidence: 99%

“…In Israel, marine Cd input has been associated with industrial emission via river discharge (NAP, 2015; Shefer et al., 2015). Similar to Turkey, IOLR's monitoring program has also reported a local decrease in Cd along the coastline, translating to decreasing concentrations of Cd in sediments, suspended material, and molluscs (Herut et al., 2012; Shefer et al., 2015). Therefore, an observed relaxation of Cd in marine biota could be expected as well.…”

Section: Resultsmentioning

confidence: 99%

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A survey of arsenic, mercury, cadmium, and lead residues in seafood (fish, crustaceans, and cephalopods) from the south‐eastern Mediterranean Sea

Ramon

Morick

Croot

et al. 2021

Journal of Food Science

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Seafood is capable of bioaccumulating heavy metals (HM), making it a potentially major dietary source of HM for humans. Presently, little data exists on seafood from the eastern‐most boundary of the Mediterranean Sea. This study aims to provide exposure insight of the Israeli population to HM through the consumption of locally caught seafood by assessing the levels of arsenic, mercury, cadmium, and lead in raw tissues of seafood. A wide survey of local fisheries was conducted providing 296 samples from 11 different species, including seven fish, two crustacean, and two cephalopod species. Total arsenic, cadmium, and lead were analyzed by graphite‐furnace atomic absorption. Total mercury was measured by cold‐vapor mercury analyzer. Arsenic speciation was performed by anion chromatography‐inductively coupled plasma sector field mass spectrometry. Results suggested that the total arsenic concentrations were significantly higher in crustaceans and cephalopods than fish. Arsenic speciation revealed two samples that exceed 1 mg/kg of inorganic arsenic, whereas methylated arsenic was below the detection limit. Elevated mercury levels were detected in the commercial benthic species Mullus barbatus (red mullet), cadmium was detected in one‐third of the samples, and lead detected in eight samples. Comparing the results to health guidelines, 99.4% of seafood tested in this study abide with acceptable levels of heavy metals in seafood, as defined by both Israeli and European Union guidelines.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

A survey of arsenic, mercury, cadmium, and lead residues in seafood (fish, crustaceans, and cephalopods) from the south‐eastern Mediterranean Sea

Ramon

Morick

Croot

et al. 2021

Journal of Food Science

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“…Habitat destruction is not relevant here because reefs have not been considerably structurally-compromised along the Israeli coast except in some vermetid reefs where the rim seems eroded due to the disappearance of D. petraeum 33 (personal observations). With regard to pollution, contaminants mostly occur in the Haifa Bay and levels in most categories (e.g., heavy metals) have in-fact been declining or stabilizing in the past two decades43. Eutrophication is also generally not a major stressor along most of the open Israeli coast.…”

Section: Discussionmentioning

confidence: 99%

Multi-species collapses at the warm edge of a warming sea

Rilov

2016

Sci Rep

144

125

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Even during the current biodiversity crisis, reports on population collapses of highly abundant, nonharvested marine species were rare until very recently. This is starting to change, especially at the warm edge of species' distributions where populations are more vulnerable to stress. The Levant basin is the southeastern edge of distribution of most Mediterranean species. Coastal water conditions are naturally extreme, and are fast warming, making it a potential hotspot for species collapses. Using multiple data sources, I found strong evidence for major, sustained, population collapses of two urchins, one large predatory gastropod and a reef-building gastropod. Furthermore, of 59 molluscan species oncedescribed in the taxonomic literature as common on Levant reefs, 38 were not found in the presentday surveys, and there was a total domination of non-indigenous species in molluscan assemblages. Temperature trends indicate an exceptional warming of the coastal waters in the past three decades. Though speculative at this stage, the fast rise in SST may have helped pushing these invertebrates beyond their physiological tolerance limits leading to population collapses and possible extirpations. If so, these collapses may indicate the initiation of a multi-species range contraction at the Mediterranean southeastern edge that may spread westward with additional warming.

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“…In the last decades, studies on bivalves and gastropod mollusks from different marine geographical areas have been extensively examined in a number of field studies contributing to a better knowledge on metal bioaccumulation processes (Giarratano et al, 2010;Aydın-Önen and Öztürk, 2017;Joksimovic et al, 2016Joksimovic et al, , 2018; see reviews Beyer et al, 2017;Reguera et al, 2018). These studies have also contributed to the evaluation of possible human health risks resulting from their consumption (Yüzereroğlu et al, 2010;Connan and Tack, 2010;Stankovic et al, 2012;Conti et al, 2012a;Jović and Stanković, 2014;Shefer et al 2015;Primost et al, 2017). For instance, a recent interesting study, connect the Cd contamination with the use of Mytilus chilensis valves as byproducts in agricultural applications (Blanc et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Performance of two Patagonian molluscs as trace metal biomonitors: The overlap bioaccumulation index (OBI) as an integrative tool for the management of marine ecosystems

Conti

Tudino

Finoia

et al. 2019

Ecological Indicators

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In this study, we have investigated Cd, Cr, Cu, Ni, Pb and Zn in the biomonitors Mytilus chilensis and Nacella (P) magellanica sampled along seven selected sampling sites along km of the coastal area of the Beagle Channel (Tierra del Fuego, Argentina) in four sampling campaigns: 2005, 2007, 2011 and 2012. The control charts were built by applying Johnson's (Biometrika 36: 149-175, 1949) probabilistic method for the first time in this marine area. We determined the metal concentration overlap ranges in the selected biomonitors (as well as medians and distribution), and the overlap bioaccumulation index (OBI) with respect to the lowest (OBI-L1) and the highest (OBI-L) extreme values of the overlap metal concentration ranges. The OBI can be used as an integrative tool in the management of prevailing unpolluted/polluted marine coastal ecosystems. It consents to identify the most suitable organisms for managing several environmental conditions where an ecosystem quality control is needed. The OBI-L1 index can be employed as a preventive signal of alarm when the contamination process is in its early stages. For Cd, Cr, Cu, and Ni, Nacella showed high OBI-L values that suggest its use as a biomonitor for mainly polluted marine ecosystems, in particular for Cd. Mytilus showed high Cd values for the OBI-L1 which means that this species is highly sensitive to a very low variation of the Cd levels in seawater. Good OBI-L1 values were instead obtained for Mytilus for Cr and Cu, showing the good aptitude of these organisms to detect minimum variations of trace metals concentrations in seawater. The OBI index and its related guidelines have both theoretical and practical implications in environmental management. They can be used, for instance, in environmental prevention from events such as oil spills or other marine disasters. Marine ecosystems are complex systems. According to the Ashby's Law (1957, 1958), the understanding of a complex system (requisite variety) depends on the information variety owned by the observer. The OBI index enhances the observer's information variety about the performance of the molluscs as metal biomonitors in marine ecosystems. Eventually, here we propose to conceptualize the wide set of biomonitoring knowledge endowment as an open and evolutionary endowment of information variety supporting the environmental management.

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Trace metal bioaccumulation in Israeli Mediterranean coastal marine mollusks

Cited by 23 publications

References 45 publications

A survey of arsenic, mercury, cadmium, and lead residues in seafood (fish, crustaceans, and cephalopods) from the south‐eastern Mediterranean Sea

A survey of arsenic, mercury, cadmium, and lead residues in seafood (fish, crustaceans, and cephalopods) from the south‐eastern Mediterranean Sea

Multi-species collapses at the warm edge of a warming sea

Performance of two Patagonian molluscs as trace metal biomonitors: The overlap bioaccumulation index (OBI) as an integrative tool for the management of marine ecosystems

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