Temporal and Spatial Effects on Some Physiological Parameters of the Bivalve &amp;lt;i&amp;gt;Lithophaga lithophaga&amp;lt;/i&amp;gt; (Linnaeus, 1758) from Coastal Regions of Alexandria, Egypt

Radwan, Eman; Hamed, Sherifa S.; Saad, Gaber Ahmed

doi:10.4236/oje.2014.412063

Cited by 8 publications

(3 citation statements)

References 39 publications

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“…The present study showed that Pb, Cd, and Cu increased significantly in Abo Qir during summer compared with the other coastal sites, Miami and Alasafra. Radwan et al [15] also found that Abo Qir seawater mostly polluted with Cu and Cd compared with the seawater collected from Miami and El Mex. On the other hand, MacFarlane et al [66] stated that Egyptian coastal area of Mediterranean Sea might be considered relatively unpolluted with heavy metals.…”

Section: Discussionmentioning

confidence: 95%

Health Status of Date Mussel "Lithophaga Lithophaga, Family: Mytilidae" in Alexanderia, Egypt: Potential Effects of the Heavy Metal Pollution

Salama

Mona

Ghoneium

2020

Egyptian Journal of Zoology

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Section: Discussionmentioning

confidence: 95%

Health Status of Date Mussel "Lithophaga Lithophaga, Family: Mytilidae" in Alexanderia, Egypt: Potential Effects of the Heavy Metal Pollution

Salama

Mona

Ghoneium

2020

Egyptian Journal of Zoology

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“…Utilization of heavy metals in industry, marine transport, and agriculture waste from the El-Mahmoudia canal that flow off in El-Max leads to a wide distribution of these components in a marine environment. Their toxicity, potential for human exposure, and environmental occurrence is dependant on several factors such as their concentration and source (Wu andZhang, 2010, Radwan et al, 2012;Radwan et al, 2014;Radwan, 2016;Radwan et al, 2016;Radwan et al, 2017;Radwan et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Marine pollution by some heavy metals and physiological response of Ruditapes decussatus

Khodary

Radwan

El-Ghazaly

et al. 2018

Journal of Bioscience and Applied Research

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Bivalves can accumulate toxicants such as heavy metals in their tissues, for this reason, they are considered as good bio-indicators for water quality. The risk is increased due to eating these clams raw or lightly cooked. This study aims to determine the concentration of some selected metals (Cu, Zn, Mn, Cd, and Pb) in the soft tissue of Ruditapes decussatus collected in the summer of 2017, from three locations at Alexandrian coasts, Egypt, Abo Quir, (loc.#1), Sedi Beshr (loc.#2) and (loc.#3), El-Max) and to find out whether pollution alters the clam physiological functions or not. The present data showed that the highest mean value of salinity was reported in water samples collected from Abo Quir (loc.#1) and the highest level of dissolved oxygen was reported in water samples collected from Sedi Beshr (loc.#2). The present results showed that the studied heavy metals concentrations are highly significant in samples of water and soft tissue of Ruditapes decussatus collocated from Abo Quir bay. From the above-cited results, it is concluded that loc.#1(Abo Quir bay) represents the most polluted site in the present study. Statistical analysis showed a significant increase of MDA and a significant decrease of SOD and GPx in the soft tissue of Ruditapes decussatus collected from Abo-Quir Bay (loc.#1). There was a highly significant difference between the concentration of MDA, SOD, and GPx in the tissue of clams collected from the three locations (p<0.001). The correlation coefficient of heavy metals in tissue, heavy metals in water, and oxidative stress biomarkers showed that the concentration of MDA in the tissue of calm collected from Abo Quir Bay (loc.#1), Sedi Beshr (loc.#2), and El-Max (loc.# 3) were positively correlated with the mean activity level of SOD and the concentration of SOD in the clam's tissue collected from Abo Quir Bay (loc.#1) and Sedi Beshr (loc.#2) were negatively correlated with the activity level of GPx. The present work also showed that the correlations between different heavy metals in the tissues of R. decussatus collected from three locations indicated that different rates and mechanisms of metal accumulation were taking place.

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“…metals that accumulate in ctendia of A. ehrenbergi pose a threat to the survivorship of individual species as well as the ecosystem. Several authors in the available literature interested to investigate the problem of heavy metals bioaccumulation in marine invertebrates and fishes (Khan et al, 2001;Bu-Olayan and Thomas, 2001;Islam and Tanaka, 2004;Naithani et al, 2010;Freije, 2014;Radwan et al, 2014). The most interesting work concerning heavy metals accumulations in marine animals inhabiting the Arabian Gulf is Freije (2014).…”

Section: Discussionmentioning

confidence: 99%

Measurement of heavy metals accumulation in ctendia of Anadara ehrenbergi (Dunker, 1868) using energy-dispersive x-ray fluorescence (EDXRF)

Saad¹,

Bedeer²,

Radwan³

2015

J. Oceanogr. Mar. Sci.

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Specimens were collected from three estuarine localities of the Arabian Gulf (Saudi Arabia) namely northern Khobar, southern Khobar and Ad-Dammam estuarine beaches during January and August 2013 and June 2014. Three collections in the form of twenty specimens were samples in each month from each locality. Immediately these samples were dissected and ctendia were isolated and frozen at -20°C. Using energy dispersive X Ray fluorescence (EDXRF), accumulations of Sodium, manganese, aluminium, phosphate, sulphur, chlorine, cadmium, calcium, iron, nickel, copper, zinc and lead were measured. This trail has been investigated in triplets. Concentration of the heavy metals studied was compared with United Kingdom Quality Standards, the United States Environmental Protection Agency (USEPA), Egyptian Organization for Standardization and Saudi Arabian Standards Organization. One way analysis of variance (ANOVA) with P˂0.05 and Turkey`s multiple analysis test were applied to all the data obtained from the software. This study concluded that clams live in southern Khobar estuarine beach contain percentage of heavy metals ≥ Saudi Arabian Standards whereas the clams live the northern Khobar and Ad-dammam easuarine beaches contain percentage of heavy metals ≈ Saudi Arabian Standards.

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Temporal and Spatial Effects on Some Physiological Parameters of the Bivalve <i>Lithophaga lithophaga</i> (Linnaeus, 1758) from Coastal Regions of Alexandria, Egypt

Cited by 8 publications

References 39 publications

Health Status of Date Mussel "Lithophaga Lithophaga, Family: Mytilidae" in Alexanderia, Egypt: Potential Effects of the Heavy Metal Pollution

Health Status of Date Mussel "Lithophaga Lithophaga, Family: Mytilidae" in Alexanderia, Egypt: Potential Effects of the Heavy Metal Pollution

Marine pollution by some heavy metals and physiological response of Ruditapes decussatus

Measurement of heavy metals accumulation in ctendia of Anadara ehrenbergi (Dunker, 1868) using energy-dispersive x-ray fluorescence (EDXRF)

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