Heavy metal content in oysters (Crassostrea gigas) cultured in the Ebro Delta in Catalonia, Spain

Ochoa, Victoria; Barata, Carlos; Riva, M. C.

doi:10.1007/s10661-013-3064-z

Cited by 19 publications

(8 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared to Zn, the concentration of Cu was one order of magnitude lower. The large ratio between Zn and Cu was in agreement with previous reports that accumulation of Zn and Cu represents an antagonistic effect in many marine invertebrates, such as oyster (Ochoa et al 2013), mussel (Wang et al 2005), Sea Urchin , and also sea cucumber (Xing and Chia 1997). In addition, it is worth noting that As levels was higher than the essential metals Cu and Cr, which suggest that As tends to accumulate in A. japonicus.…”

Section: Resultssupporting

confidence: 91%

Heavy Metals in Sea Cucumber Juveniles from Coastal Areas of Bohai and Yellow Seas, North China

Jiang

Tang

Qin

et al. 2014

Bull Environ Contam Toxicol

View full text Add to dashboard Cite

The study was undertaken to assess the contents of heavy metals (Cu, Zn, Cr, Pb, Cd, As and Hg) in sea cucumber (Apostichopus japonicus) juveniles from coastal areas of Bohai and Yellow seas in northern China. Sea cucumber juveniles were collected from twenty commercial hatcheries distributed in five coastal cities. The mean concentrations obtained for heavy metals in mg/kg were as follows: Cu (0.179), Zn (2.634), Cr (0.108), Pb (0.065), Cd (0.161), As (0.372), Hg (0.034). All the mean concentrations were below the maximum residual limits set by Chinese legislation, but As in 10 % samples exceeded the safety threshold. Significant differences in contents of Cr, Pb and Hg were found among the five investigated areas. Overall, the heavy metal levels in sea cucumber juveniles were relatively low and more attention should be paid to toxic metals Pb, Cd, As and Hg in future routine monitoring program.

show abstract

Section: Resultssupporting

confidence: 91%

Heavy Metals in Sea Cucumber Juveniles from Coastal Areas of Bohai and Yellow Seas, North China

Jiang

Tang

Qin

et al. 2014

Bull Environ Contam Toxicol

View full text Add to dashboard Cite

show abstract

“…The concentration of heavy metals in oyster tissues at the end of the study was below the limits of various norms, among them, the rules of the European Union, Australian and New Zealand legislation on Heavy metals in food, Brazilian legislation on heavy metal (Díaz, 2019) andFDA (2012). The observed values, in general, were lower than those found in C. gigas cultivated in Korea (Mok et al, 2015), Spain (Ochoa, Barata, & Riva, 2013) and Mexico (Góngora et al, 2017).…”

Section: Discussioncontrasting

confidence: 71%

Suspended culture evaluation of Pacific oysterCrassostrea gigasin a tropical estuary

et al. 2020

View full text Add to dashboard Cite

The growth and survival of Crassostrea gigas were evaluated in hanging culture in the Chone River estuary (Bahía de Caráquez), Manabí province, Ecuador. Oyster seeds (~10 mm) were confined in lantern nets at a density equal to the occupation of half the surface of the basket base, until reaching commercial size (80 mm). A sample for oyster biometric, parasitic and bacterial analysis was obtained monthly. Temperature, salinity, oxygen concentration, seston and phytoplankton biomass were determined. At the end of the study, the oysters were analysed for heavy metal concentration. The commercial oyster production was extrapolated to estimate the possible economic performance of a family production module (a 7 × 7 m bamboo raft). The results show a great biological feasibility of culture of C. gigas with harvests of commercial size oysters in only 5 months and acceptable survivals (accumulated >70%, after 3 weeks of crop seed selection). The heavy metal concentrations and the parasitological and bacteriological analyses did not indicate levels of contamination. The economic projections suggest that, even with a profitability of 57%, the initially invested capital could be recovered within the first harvest.

show abstract

“…In this study, the ranking of metal concentrations in C. gigas reflects the typical metal accumulation of other Crassostrea species (Phillips & Muttarasin, 1985;Páez-Osuna & Marmolejo-Rivas, 1990a;Lin & Hsien, 1999), for which Zn posted the highest level and Hg the lowest. Osuna-Martínez et al (2010) and Ochoa et al (2013) highlighted the importance of oyster depuration prior to being analyzed for heavy metal concentration in order to eliminate digested and undigested food and other particles from gut contents with a potentially high-trace metal burden. This procedure allows us to quantify metal accumulation in body tissue.…”

Section: Discussionmentioning

confidence: 99%

“…Lyle-Fritch et al (2006) identified 106 different types of products, and approximately 42 products that are commonly applied at shrimp farms. As, essential element for normal growth and development (Ochoa et al, 2013), Cu is present in aquatic invertebrates and its bioaccumulation can increase with size (Pan & Wang, 2009). The consumption of oysters with high Cu levels can cause irritation, vomiting, and ulcer and kidney damage (ATSDR, 2004).…”

Section: Discussionmentioning

confidence: 99%

“…For instance, the spatial pattern of metal accumulation within intertidal bivalves was studied in England to measure the ecological impact of introducing Crassostrea gigas (Thunberg, 1873) in nature mussels (Bray et al, 2015). Sarong et al (2015) found high levels of Pb, Cd, and Zn in the body tissue of C. gigas harvested from the estuary of Lamnyong River, Indonesia, and Ochoa et al (2013) concluded that metallic pollutants did not affect oyster cultures in Ebro Delta, Spain. Concentrations of heavy metals (Cu, As, Ni, Pb, and Cd) below the maximum levels for foodstuffs in Brazilian legislation were found in the mussel Perna perna Linnaeus, 1758 and C. gigas in production areas.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Heavy-metal contents in oysters (Crassostrea gigas) cultivated on the southeastern coast of the Gulf of California, Mexico

García-Ulloa¹

2017

Hidrobiológica

View full text Add to dashboard Cite

Heavy-metal contents in oysters (Crassostrea gigas) cultivated on the southeastern coast of the Gulf of California, Mexico Contenido de metales pesados en ostiones (Crassostrea gigas) cultivados en la costa sureste del Golfo de California, México ABSTRACT Background. For its flesh and flavor, the Pacific oyster Crassostrea gigas is cultivated worldwide, but as filter feeders, this bivalve bioaccumulates heavy metals from different pollution sources, rendering them unsafe for human consumption. Goals. We carried out this study to assess the heavy metal concentrations in cultivated oysters from a farm located on the southeastern coast of the Gulf of California during 2011. Methods. Oyster samples were analyzed monthly (March-December 2011) for cooper (Cu), cadmium (Cd), chromium (Cr), nickel (Ni), lead (Pb), zinc (Zn), arsenic (As), and mercury (Hg). Results. The mean values (µg g -1 , dry weight) for each metal were Cu = 51.42 ± 25.92, Cr = 24.97 ± 32.38, Cd = 13.84 ± 4.22, Ni = 10.26 ± 12.18, Pb = 2.18 ± 1.28, As = 0.37 ± 0.08, Zn = 267.42 ± 92.29, and Hg = 0.02 ± 0.01. Conclusions. The results suggest that metal burdens could be influenced by anthropogenic activities such as agriculture and aquaculture surrounding the culture zone. Cu, Cr, Cd, and Pb levels (µg g -1 , fresh weight) were above the maximum permissible values and thus pose a threat to human health. Metal concentrations must be monitored periodically. RESUMENAntecedentes. El ostión del pacífico, Crassostrea gigas, es cultivado en el mundo por su sabor y textura de la carne, pero por ser un organismo que se alimenta mediante filtración, puede acumular metales pesados haciéndolo peligroso para su consumo. Objetivos. El presente estudio evaluó la concentración de metales pesados en ostiones cultivados en una granja localizada en la costa sureste del Golfo de California durante 2011. Métodos. Se tomaron muestras de ostión cada mes (marzo-diciembre 2011) para analizar el contenido de cobre (Cu), cadmio (Cd), cromo (Cr), níquel (Ni), plomo (Pb), zinc (Zn), arsénico (As) y mercurio (Hg). Resultados. Los valores promedio (µg g -1 , peso seco) de cada metal fueron: Cu = 51.42 ± 25.92, Cr = 24.97 ± 32.38, Cd = 13.84 ± 4.22, Ni = 10.26 ± 12.18, Pb = 2.18 ± 1.57, As = 0.37 ± 0.26, Zn = 267.42 ± 92.29 and Hg = 0.02 ± 0.01. Conclusiones. Los resultados obtenidos sugieren que la carga de metales pudo haber sido influenciada por actividades antropogénicas desarrolladas en los alrededores del área de cultivo, como agricultura y acuacultura. Los niveles de Cu, Cr, Cd y Pb en peso húmedo rebasaron los límites máximos permitidos representando un riesgo para la salud humana. La carga de los metales estudiados debe ser monitoreada periódicamente.

show abstract

Heavy metal content in oysters (Crassostrea gigas) cultured in the Ebro Delta in Catalonia, Spain

Cited by 19 publications

References 49 publications

Heavy Metals in Sea Cucumber Juveniles from Coastal Areas of Bohai and Yellow Seas, North China

Heavy Metals in Sea Cucumber Juveniles from Coastal Areas of Bohai and Yellow Seas, North China

Suspended culture evaluation of Pacific oysterCrassostrea gigasin a tropical estuary

Heavy-metal contents in oysters (Crassostrea gigas) cultivated on the southeastern coast of the Gulf of California, Mexico

Contact Info

Product

Resources

About