Spatiotemporal bioaccumulation of lead, cadmium, zinc and copper metals in Lettuce Sea <i>Ulva lactuca</i> harvest in two Algerian west coasts

Abi-Ayad, Linda; Ghezlaoui, Sidi Mohammed Bahae Ddine; Belkhouche, Nassereddine; Morillo, José

doi:10.2478/eko-2018-0020

Cited by 4 publications

(3 citation statements)

References 29 publications

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“…Variation of mean heavy metal concentrations expressed in mg/kg DW according to the size classes of Merluccius merluccius from Bejaia Gulf. Belhaouari et al, 2011;Onivogui et al, 2013;Abi-Ayad et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Heavy Metal and Trace Element Bioaccumulation in Muscle and Liver of the Merlu (Merluccius merluccius Linneaus, 1758) from the Gulf of Bejaia in Algeria

Alik

Oudainia

Bouchebbah

et al. 2021

Ekológia (Bratislava)

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This preliminary study aims at assessing a contamination level of Bejaia Gulf by some Metallic Trace Elements (MTEs) such as zinc, iron, copper, nickel, lead and cadmium. The use of hake, Merluccius merluccius (Linneaus, 1758) as a bio-indicator of these heavy metals, made it possible to put in an obvious the presence of these micropollutants at the level of two target organs, the liver, detoxifying organ and the muscle, the most prized part by consumer. The MTE assays are performed using a Flame Atomic Absorption Spectrophotometer (FAAS). As for the fish contamination level, it is referred to the guide values of the WHO, FAO and Algerian recommendations. Within the framework of our study, the recorded values show that hake accumulates all metal pollutants being analyzed. Iron and zinc exhibit the highest concentration, the presence of nickel and copper were also recorded. Lead and cadmium have critical concentrations exceeding even Algerian standards. These results revealed no significant difference in both sexes and in both target organs. However, the study indicates considerable contamination in young fish with significant concentrations according to established standards. These data reveal that Merluccius merluccius is a bio-indicator of marine pollution in the Gulf of Bejaia.

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Section: Discussionmentioning

confidence: 99%

Heavy Metal and Trace Element Bioaccumulation in Muscle and Liver of the Merlu (Merluccius merluccius Linneaus, 1758) from the Gulf of Bejaia in Algeria

Alik

Oudainia

Bouchebbah

et al. 2021

Ekológia (Bratislava)

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“…This bioaccumulation of toxic metals such as Pb, Cu, Cd, Zn, etc in algae can lead to the disappearance of these algae over time. Currently, protecting the marine ecosystem represents a major economic and ecological challenge for the industrial and scientific communities (Abi-Ayad et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Biochemical Composition and Toxicity Assessment of Seaweeds from the Algerian Coast: Implications for Human Consumption and Marine Pollution

Ousmer,

Madani,

Dahim

et al. 2024

Preprint

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Seaweeds are widely used as food and natural remedies among the Asian population. In this study, the biochemical composition of Cystoseeira amentacea, Cystoseira sedoides, and Sargassum vulgare from the Algerian coast was evaluated. The results indicated that the protein content ranged from 8.62–9.56%, whereas the lipid content varied from 0.77 to 2.35%. The most prevalent unsaturated fatty acid was oleic acid (14.47–18.64%). The seaweeds contain phenolic compounds in varying amounts, LC-MS-MS analysis showed the presence of catechin, p-coumaric acid, caffeic acid, and gallic acid. Moreover, the phaeophyta are rich in potassium and calcium. However, they accumulate high quantities of heavy metals including arsenic (403.92 ± 1.299 to 508.62 ± 1.364 mg/100g of dry matter). The results suggest that these algae are rich in primary and secondary metabolites, however, they cannot serve as human food, due to their toxicity. Consequently, they can used as bioindicators of marine pollution. Keyworlds : Seaweeds, Phenolic compounds, Fatty acids, Proteins, Flavonoids, Heavy metals.

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“…The circulation of substances in reservoirs is closely related to the nutrition of animals (Abi-Ayad et al, 2018). Hence, there is a need to study the mechanism and nature of hydrobionts' nutrition (Sushkina, 1949).…”

Section: Introductionmentioning

confidence: 99%

Trophic characteristics of Lymnaea stagnalis (Mollusca: Gastropoda: Lymnaeidae) in toxic environment

Pinkina

Zymaroieva

Матковська

et al. 2019

Ekológia (Bratislava)

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The influence of ions of heavy metals (copper, cadmium, nickel, zinc, cobalt and manganese) was investigated on the basis of trophic characteristics: the average daily ration (ADR), and duration of food passage (DFP) of the Lymnaea stagnalis L. in various concentrations of toxicants in vivisection experiment. In addition to these indicators, the total amount of food consumed in the solutions with various concentrations of pollutants was found out during the chronic experiment and it was calculated for an individual (average monthly ration – AMR). It leads to the conclusions about the intensity of food consuming considering different levels of intoxication. In solutions with lethal concentrations, the death of animals occurs during the first day of its impact due to the damage of tissues and organ systems. Chronic lethal concentrations of toxicants inhibit the nutrition of pond snails dramatically. At the beginning of the experiment, solutions of heavy metals with sublethal concentrations give some stimulatory effect on the digestive system of molluscs that is replaced by its suppression in case of longer being in the toxic environment. The influence of toxicants within a subthreshold limit cannot be considered safe because of the cumulative properties of heavy metals – they become sublethal with prolonged exposure time.

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Spatiotemporal bioaccumulation of lead, cadmium, zinc and copper metals in Lettuce Sea Ulva lactuca harvest in two Algerian west coasts

Cited by 4 publications

References 29 publications

Heavy Metal and Trace Element Bioaccumulation in Muscle and Liver of the Merlu (Merluccius merluccius Linneaus, 1758) from the Gulf of Bejaia in Algeria

Heavy Metal and Trace Element Bioaccumulation in Muscle and Liver of the Merlu (Merluccius merluccius Linneaus, 1758) from the Gulf of Bejaia in Algeria

Biochemical Composition and Toxicity Assessment of Seaweeds from the Algerian Coast: Implications for Human Consumption and Marine Pollution

Trophic characteristics of Lymnaea stagnalis (Mollusca: Gastropoda: Lymnaeidae) in toxic environment

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