Pinctada radiata (Pearl Oyster): A Bioindicator for Metal Pollution Monitoring in the Qatari Waters (Arabian Gulf)

Al-Madfa, H.; Abdel-Moati, Mohamed A.; Al-Gimaly, F. H.

doi:10.1007/s001289900617

Cited by 42 publications

(11 citation statements)

References 4 publications

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“…In addition, the undigested organic and inorganic materials in their faeces and pseudofaeces are deposited to the sedimental surface, which are essential for the establishment of a suitable microenvironment for the growth of bacteria and protist (Lukwambe et al, ; Newel, ). Moreover, bivalves accumulate heavy metals and organic pollutants in their bodies, which help control water pollution (Al‐Madfa, Abdel‐Moati, & Al‐Gimaly, ; Burns & Smith, ; Dame, ; Lukwambe et al, ; Newel, ).…”

Section: Introductionmentioning

confidence: 99%

Chromosome‐level genome assembly of the razor clam Sinonovacula constricta (Lamarck, 1818)

Ran

Yan

et al. 2019

Molecular Ecology Resources

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Bivalves, a highly diverse and the most evolutionarily successful class of invertebrates native to aquatic habitats, provide valuable molecular resources for understanding the evolutionary adaptation and aquatic ecology. Here, we reported a high‐quality chromosome‐level genome assembly of the razor clam Sinonovacula constricta using Pacific Bioscience single‐molecule real‐time sequencing, Illumina paired‐end sequencing, 10X Genomics linked‐reads and Hi‐C reads. The genome size was 1,220.85 Mb, containing scaffold N50 of 65.93 Mb and contig N50 of 976.94 Kb. A total of 899 complete (91.92%) and seven partial (0.72%) matches of the 978 metazoa Benchmarking Universal Single‐Copy Orthologs were determined in this genome assembly. And Hi‐C scaffolding of the genome resulted in 19 pseudochromosomes. A total of 28,594 protein‐coding genes were predicted in the S. constricta genome, of which 25,413 genes (88.88%) were functionally annotated. In addition, 39.79% of the assembled genome was composed of repetitive sequences, and 4,372 noncoding RNAs were identified. The enrichment analyses of the significantly expanded and contracted genes suggested an evolutionary adaptation of S. constricta to highly stressful living environments. In summary, the genomic resources generated in this work not only provide a valuable reference genome for investigating the molecular mechanisms of S. constricta biological functions and evolutionary adaptation, but also facilitate its genetic improvement and disease treatment. Meanwhile, the obtained genome greatly improves our understanding of the genetics of molluscs and their comparative evolution.

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Section: Introductionmentioning

confidence: 99%

Chromosome‐level genome assembly of the razor clam Sinonovacula constricta (Lamarck, 1818)

Ran

Yan

et al. 2019

Molecular Ecology Resources

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“…Abdel-Moati (1992) observed a reduction in protein and carbohydrate contents with increased concentrations of Pb in the mussel Mytilus edulis. Al-Madfa et al (1998) recorded a similar increase of lead in the pearl oyster Pinctada radiata collected from Doha harbor bed (average 4.79± 1.61 μg/g). They declared that it could be related to the close proximity of the harbor to a main highway, fishing boats, and anchored yachts, all of which could be a source for combustible leaded gasoline which are used as fuel.…”

Section: Saudi Arabiamentioning

confidence: 79%

Evaluation of Heavy Metal Pollution in the Arabian Gulf Using the Clam Meretrix meretrix Linnaeus, 1758

Al-Yahya

El-Gendy

Farraj

et al. 2010

Water Air Soil Pollut

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The present study is an attempt to assess the heavy metal contamination in the marine environment of the Arabian Gulf of Saudi Arabia. The concentrations of heavy metals in water and the soft tissues of the bivalve species Meretrix meretrix Linnaeus, 1758, from different stations along the Arabian Gulf coastline, were determined during the summer season of 2008. Bioaccumulation of some heavy metals (Cd, Pb, Cu, and Zn) in fresh parts of the clam (M. meretrix) was measured by an atomic absorption spectrophotometer. The average concentrations of heavy metals in the clam tissues were 0.224-0.908, 0. 294-2.496, 3.528-8.196, and 12.864-24.56 mg/kg wet weight for Cd, Pb, Cu, and Zn, respectively. In water, the mean concentration values of these metals were arranged in the following descending order: Pb > Cu > Zn > Cd. The heavy metal concentrations in tissues of M. meretrix were within the acceptable standards set by the US Environmental Protection Agency, the Commission Européenne, and the Food and Drug Administration of the USA. From the human public health point of view, these results seem to show no possibility of acute toxicities of Cd, Cu, Pb, and Zn if the edible clam is consumed. It is recommended that relevant authorities should carry out a continual assessment on the levels of these pollutants in the studied area.

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“…However, mother-ofpearl shells are of little commercial value in the Mediterranean. Because of its tolerance to chemical contamination and the ability of oysters to accumulate metals to several orders of magnitude higher than the background medium, it has been used as a bioindicator of heavy metal pollution (e.g., AL-MADFA, et al, 1998;GÖKSU et al, 2005).…”

Section: Locationmentioning

confidence: 99%

Molluscan species of minor commercial interest in Hellenic seas: Distribution, exploitation and conservation status

et al. 2008

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Recognising the need for data gathering at taxon level besides the taxa of commercial interest and those listed as endangered in the Protocol of the Barcelona Convention, but still exploited by Man, the present study attempts to gather and review the available scientific information on molluscs of minor commercial importance in order to assist in the adequate management and protection of their populations. Forty one species (18 gastropods, 13 bivalves, and 10 cephalopods) of minor commercial interest are treated in the present work with details on their biogeographic distribution, exploitation and conservation status in Hellas. Apart from a few species (e.g., Pinna nobilis, Lithophaga lithophaga, Donacilla cornea), and these only at a local scale, there is no population assessment in Hellenic seas. The existing legislation for eleven of these species is not enforced in practice, and seems insufficient to guarantee their conservation. It is suggested that targeted collection data, networked nationally and internationally, should be promoted so this invaluable source of biodiversity information can be accessed for conservation and planning purposes.

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Pinctada radiata (Pearl Oyster): A Bioindicator for Metal Pollution Monitoring in the Qatari Waters (Arabian Gulf)

Cited by 42 publications

References 4 publications

Chromosome‐level genome assembly of the razor clam Sinonovacula constricta (Lamarck, 1818)

Chromosome‐level genome assembly of the razor clam Sinonovacula constricta (Lamarck, 1818)

Evaluation of Heavy Metal Pollution in the Arabian Gulf Using the Clam Meretrix meretrix Linnaeus, 1758

Molluscan species of minor commercial interest in Hellenic seas: Distribution, exploitation and conservation status

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