Diagnosis on the state of healthiness, quality of the coast and biological resources ‘case of the Moroccan Atlantic coast’ (City of El Jadida)

Kaimoussi, Aziz; Chafik, A.; Mouzdahir, Abdelkrim; Bakkas, Salem

doi:10.1016/s1631-0691(02)01424-5

Cited by 26 publications

(9 citation statements)

References 35 publications

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“…The maximum average concentrations for Al (1215.0 mg/kg), As (14.2 mg/kg) and Li (1.74 mg/kg) were observed in the winter season, while the minimum mean contents for Al (494.9 mg/kg), As (8.74 mg/kg), and Li (1.46 mg/kg) were indicated in the summer period. Similar results have been found by many researchers [23][24][25][26][27][28][29]. Bouthir et al [25] indicated in the Moroccan Atlantic Ocean, higher contents of metallic elements in tissues of M. galloprovincialis during the wet period (winter), whereas lower contents were observed in the hot period (summer).…”

Section: Heavy Metal Analyzessupporting

confidence: 85%

Biomonitoring study of trace metals (Al, As, Li) in mussels from Al Hoceima coastline of Moroccan Mediterranean Sea

Azizi¹,

Akodad²,

Layachi

et al. 2021

E3S Web Conf.

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Mytilus galloprovincialis are commonly used as heavy metal biomonitors across the world. In the present work, the contents of three elements (Al, As, Li) were analyzed in Mytilus galloprovincialis using Inductively Coupled Plasma – Optical Emission Spectrometry (ICP-OES 720-ES). Samples of soft tissues are collected monthly in 2020, from three sites of the mussel farming facilities installed in the Al Hoceima Sea. The decreasing order of the mean element contents in mussel tissues was Al > As > Li. The lowest values of metallic elements were found in summer and the highest contents were indicated in winter. Positive correlations were indicated between these elements and chlorophyll a indicating the importance of diet for the bioaccumulation of metals in mussels. In addition, our results show that the temperature and the salinity increase with the decreasing of metals bioavailability suggesting the influence of chemical properties and physical kinetics changes in the solution. On the other hand, the strong correlations observed for metal contents in mussel tissues can be elucidated by their common sources. The results of this study may be useful in the use of M. galloprovincialis, in the environmental biomonitoring studies.

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Section: Heavy Metal Analyzessupporting

confidence: 85%

Biomonitoring study of trace metals (Al, As, Li) in mussels from Al Hoceima coastline of Moroccan Mediterranean Sea

Azizi¹,

Akodad²,

Layachi

et al. 2021

E3S Web Conf.

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“…Concerning the iron content in the sample of mussels taken is of the order of 13.5 mg/kg. The Fe content is lower than those found in the literature for the same species of the order of 2462 mg/kg [8] and other species of bivalves such as Scrabicularia.plana (1657-3-4452mg/kg) [9], Cardium.edule (950-1026 mg/kg) [10] and Mytilus edulis (1380 mg/kg) [11].…”

Section: Heavy Metalsmentioning

confidence: 62%

Physico-chemical characterization of water and metallic contamination of Mytilus galloprovincialis in the coastal zone of Saidia

2021

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Water is a vital natural resource for life. The metal pollution of aquatic ecosystems is increasing due to the effects of urbanization and industrialization. As a result, heavy metals contamination has become a serious threat to public health because of their toxicity, long persistence, bioaccumulation, and biomagnification in the food chain. This investigation aims to evaluate seawater's Physico-chemical quality and assess the contamination risks of Mytilus galloprovincialis mussels by Cadmium, Zinc, Iron, and Copper. The study was carried out in three stations of Saidia coast during July 2019. The seawater was analyzed for its Physico-chemical parameters, and ICP-AES determined the heavy metals content in mussels. The results show that the tested water has a pH value ranging between 7.48-7.62 with nitrate and nitrite content range between 0-4.78 mg/L, 0.007-0.181 mg/L, respectively. The recorded water conductivity and oxydability values ranged from 22 to 55 mS/cm and from 5.67 to 10.47 mg/L. The mean concentration found in the mussels were in decreasing order, Iron (13.5 mg/kg), Zinc (2.3 mg/kg), Copper (0.65 mg/kg) and Cadmium (0.02 mg/kg), respectively. The obtained results indicate that all values are below the threshold recommended by Food and agriculture organization and world health organization.

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“…According to the data described in previous reports (Morgan et al 2003;Shiber and Washburn 1979 ), particularly for the Cd, Cu, Fe, Mn and Zn metal contents, and using these new values as a guide, it became clear that most stations in the city of Bou Ismaïl can be considered as having high levels of contamination and, hence, severe pollution by metal trace element (ETM). The significant levels of cadmium obtained in the algae collected could be attributed to the abundance of this metal in the industrial effluent emissions (Kaimoussi et al 2002(Kaimoussi et al , 2004. Although the content of metals in algae was subject to large variations, a trend towards higher levels of mercury than other metals was observed along the coast of the town of Bou Ismaïl, which is in agreement with previous studies using algae.…”

Section: Study Of Heavy Metals In Sediment and Algaementioning

confidence: 99%

Heavy Metal Bioaccumulation in Brown Algae Cystoseira compressa in Algerian Coasts, Mediterranean Sea

Benfares

Seridi

Belkacem³

et al. 2015

Environ. Process.

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This study was undertaken to investigate and assess trace metal (Cd, Pb, Cr, and Hg) concentrations in the Cystoseira compressa algae from the coastal city of Bou Ismaïl (Algeria). Spatial and temporal variations in the concentrations of these heavy metals were studied in the following three sampling sites: site 1 and site 2 were major wastewater discharge zones and site 3 was located close to areas with high industrial activity. Seawater, sediments and algae in the wastewater from the three sites were submitted to physico-chemical analyses to determine the concentrations of heavy metals and the level of pollution in the region. The results revealed that site 1 (designed as desalination) and site 2 (designed as industrial waste) were non-compliant, which was attributed to heavy loads of heavy metals and wastewater discharged by industrial activity and absence of regular treatment. Site 3 (designed as cove koali), on the other hand, was noted to represent a reference site. Overall, the results provided evidence for the heavy metal bioaccumulation of algae from the genus Cystoseira and their efficiency for use as biomarkers of pollution in coastal areas.

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Diagnosis on the state of healthiness, quality of the coast and biological resources ‘case of the Moroccan Atlantic coast’ (City of El Jadida)

Cited by 26 publications

References 35 publications

Biomonitoring study of trace metals (Al, As, Li) in mussels from Al Hoceima coastline of Moroccan Mediterranean Sea

Biomonitoring study of trace metals (Al, As, Li) in mussels from Al Hoceima coastline of Moroccan Mediterranean Sea

Physico-chemical characterization of water and metallic contamination of Mytilus galloprovincialis in the coastal zone of Saidia

Heavy Metal Bioaccumulation in Brown Algae Cystoseira compressa in Algerian Coasts, Mediterranean Sea

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