Impact of the size of commercial bivalves on bioaccumulation and depuration of heavy metals

Sami, Mahmoud; Ibrahim, Nesreen K.; Mohammad, Deyaaedin A.

doi:10.21608/ejabf.2020.122312

Cited by 9 publications

(6 citation statements)

References 19 publications

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“…These inverse relationships can be attributed to the dilution of the contaminants in the soft tissues of the large animals and besides, small animals can eat more than the large one which lead to accumulate pollutant in its body. These results agree with those of (Sami et al, 2020) they noticed negative correlations between Cd, Cu and Zn with mussel size of the bivalve species Ruditapes decussatus, Venerupis pullastra and Paphia undulata at Timsah Lake. In addition, Abd ElGahny, (2017) found a negative relationship between the bivalve sizes and metal concentration, which states that the smallest individuals contained the highest concentrations of metals.…”

Section: Figure (4)supporting

confidence: 92%

Heavy metals availability in sediments and their accumulation in two edible bivalves at Suez Bay, Egypt

Nasr

Soliman

Mohamed

et al. 2021

Catrina: The International Journal of Environmental Sciences

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Sediment samples were collected from 23 stations in the inshore and offshore zones of Suez Bay, Egypt, along with two edible bivalve species, Callista sp. and Circenita callipyga. The grain size analyses revealed that the Suez Bay seafloor sediments were mostly made up of sand, with minor constituents of gravel and mud. The bioavailable forms of Fe, Mn, Zn, Cu, Ni, Pb, and Cd were estimated by using a flame atomic absorption spectrophotometer on the bulk sediment and the finest fractions Ø3, Ø4 and Ø5 samples (AAS). At both the inshore and offshore stations, Fe and Mn had the highest concentrations in sediment, while Ni had the lowest. In budding plants, Pb and Cd were insignificant in bulk sediments in spite of their abundance in the finest fractions. For evaluating heavy metals accumulation in their soft tissue, about 30 individuals of Callista sp. and Circenita callipyga (commonly known as the Venus Clam) were chosen. Except for Pb and Cd in Callista sp., all metal concentrations in soft tissues of the two bivalve species were lower than the allowed limits. The bio-sediment accumulation factor (BSAF) was calculated to assess bivalves' ability to bioaccumulate metals in their soft tissues. The data revealed that all of the analysed metals in the collected bivalve species had BSAF values less than unity (<1.0 μg/g wet weight), with the exception of Cd, which had the highest BSAF value in Callista sp (2.13 μg/g wet weight).

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Section: Figure (4)supporting

confidence: 92%

Heavy metals availability in sediments and their accumulation in two edible bivalves at Suez Bay, Egypt

Nasr

Soliman

Mohamed

et al. 2021

Catrina: The International Journal of Environmental Sciences

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“…The data of correlation coefficients illustrated the presence of miss to weak relationships between the individual weights and metal bioaccumulation in the edible tissues of the studied species at both lakes. Sami et al, (2020) found negative correlations between Cd, Cu and Zn with mussel size of the studied species; Ruditapes decussatus, Venerupis pullastra and Paphia undulata at Timsah Lake. Abd El Ghany (2017) pointed out, negative relationship was between the bivalve size and metal concentration in Venerupis decussata at the Mediterranean Sea coast of Port Said, Egypt.…”

Section: Discussionmentioning

confidence: 74%

“…The same correlations of R. decussatus at Timsah Lake showed slight positive correlations with Cd (r = 0.34) and Cu and fair negative with Ni (Table5; Fig., 8). The data of correlation coefficients illustrated the presence of miss to weak relationships between the individual weights and metal bioaccumulation in the edible tissues of the studied species at both lakes Sami et al, (2020). found negative correlations between Cd, Cu and Zn with mussel size of the studied species; Ruditapes decussatus, Venerupis pullastra and Paphia undulata at Timsah Lake.…”

mentioning

confidence: 73%

The occurrence of some carcinogenic metals in sediments and their effluences on some edible bivalves at Great Bitter and Timsah lakes, Egypt

Dar¹

2021

Egypt. J. of Aquatic Biolo. and Fish.

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Lake sediments act as major repositories of heavy metals and serve as a source of the contaminants for biota and the overlying water. The bottom sediments are critical to heavy metal assessments because they are mid and/or longterm integrators of metal inputs. Horizontal distribution of metals illustrated lateral variations in the chemical composition of surface sediments and act as a guide to local pollution. Overpopulation, industrialization, rapid urbanization, overuse of pesticides and herbicides, detergents and ARTICLE INFO

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“…The Fe, Cu and Zn are usually accumulated in the higher amounts by oysters than by mussels [25]. MG accumulated the well-known marine elements such as Se and Br in higher amounts but with a wider spread in the range of values, compared with CG and CM.…”

Section: General Characterization and Revealing The Groupsmentioning

confidence: 95%

“…The Cu was accumulated in the wider range of concentrations in alien mussels (MG) if compared to Fe and Zn. It is well known that small oysters and other bivalve molluscs take up Cu at a greater rate than larger conspecifics [25]. Uptake of Cu by mussels is more erratic and seems to be influenced by available concentrations of Zn, Cd, and Pb salts [26].…”

Section: Traits Of Elemental Accumulation In All Studied Molluscsmentioning

confidence: 99%

Accumulation Features of Micro and Macroelements in Indigenous and Alien Molluscs in Saldanha Bay, South Africa

Bezuidenhout

Nekhoroshkov

Zinicovscaia

et al. 2020

Ecological Chemistry and Engineering S

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Alien Mediterranean mussels Mytilus galloprovincialis, Pacific oysters Crassostrea gigas and indigenous Cape mussels Choromytilus meridionalis were used as sentinel biomonitors of inorganic pollutants in Saldanha Bay, South Africa. Neutron activation analysis was used to determine the concentrations of 33 macro and microelements in the soft tissues of molluscs. The Mediterranean mussels significantly demonstrated the higher accumulation ability to S, Se and Br than the Pacific oysters, whereas the Pacific oysters - to Fe, Cu, Zn and As. The Cape mussels are more sensitive to Mn and As and the Mediterranean mussels were sensitive to Zn and Se.

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Impact of the size of commercial bivalves on bioaccumulation and depuration of heavy metals

Cited by 9 publications

References 19 publications

Heavy metals availability in sediments and their accumulation in two edible bivalves at Suez Bay, Egypt

Heavy metals availability in sediments and their accumulation in two edible bivalves at Suez Bay, Egypt

The occurrence of some carcinogenic metals in sediments and their effluences on some edible bivalves at Great Bitter and Timsah lakes, Egypt

Accumulation Features of Micro and Macroelements in Indigenous and Alien Molluscs in Saldanha Bay, South Africa

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