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Assessment of trace element contamination and bioaccumulation in algae (Ulva lactuca), mussels (Perna perna), shrimp (Penaeus kerathurus), and fish (Mugil cephalus, Saratherondon melanotheron) along the Senegalese coast
2016
Diop, Mamadou | Howsam, Michael | Diop, Cheikh | Goossens, Jean | Diouf, Amadou | Amara, Rachid | Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) ; Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Nord]) | Université Cheikh Anta Diop de Dakar [Sénégal] (UCAD) | Université du Littoral Côte d'Opale (ULCO) | Facteurs de Risque et Déterminants Moléculaires des Maladies liées au Vieillissement - U 1167 (RID-AGE) ; Institut Pasteur de Lille ; Pasteur Network (Réseau International des Instituts Pasteur)-Pasteur Network (Réseau International des Instituts Pasteur)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [CHU Lille] (CHRU Lille) | Lille Inflammation Research International Center - U 995 (LIRIC) ; Institut Pasteur de Lille ; Pasteur Network (Réseau International des Instituts Pasteur)-Pasteur Network (Réseau International des Instituts Pasteur)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [CHU Lille] (CHRU Lille) | Centre Universitaire de Mesures et d'Analyses [Université de Lille] (CUMA) ; Université de Lille, Droit et Santé | Centre d'Etudes et de recherche en Santé-Travail-Environnement (CERESTE) | CSIC-Barcelone | Faculteit der Aard- en Levenswetenschappen, Vrije Universiteit ; Vrije Universiteit Amsterdam [Amsterdam] (VU) | INSTITUTE OF ENVIRONMENTAL AND BIOLOGICAL SCIENCES LANCASTER GBR ; Partenaires IRSTEA ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)
International audience | Concentrations of 11 elements were quantified in five marine species from different trophic levels of a food web (algae, mussel, shrimp and fish), representative for shallow Senegalese coastal waters, and including species of commercial importance. Significant differences in element concentrations and bioaccumulation were demonstrated, revealing the utility of employing a suite of organisms as bioindicators to monitor metal contamination in coastal areas. There was no clear seasonal pattern in concentration of elements, however inter-site differences were observed. Calculations of transfer factors for all the studied elements showed that transfer factors from water were greater than those from sediments. For shrimp and mussel, the concentrations of Pb and Cd were below the EU's maximum level for human consumption, however high concentrations of arsenic in shrimp were recorded at all sites.
Mostrar más [+] Menos [-]Assessment of trace element contamination and bioaccumulation in algae (Ulva lactuca), mussels (Perna perna), shrimp (Penaeus kerathurus), and fish (Mugil cephalus, Saratherondon melanotheron) along the Senegalese coast
2016
Diop, Mamadou | Howsam, Michael | Diop, Cheikh | Goossens, Jean | Diouf, Amadou | Amara, Rachid | Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) ; Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Nord]) | Laboratoire de Toxicologie et Hydrologie ; Université Cheikh Anta Diop de Dakar [Sénégal] (UCAD) | Université du Littoral Côte d'Opale (ULCO) | Facteurs de Risque et Déterminants Moléculaires des Maladies liées au Vieillissement - U 1167 (RID-AGE) ; Institut Pasteur de Lille ; Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille) | Lille Inflammation Research International Center - U 995 (LIRIC) ; Institut Pasteur de Lille ; Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille) | Centre Universitaire de Mesures et d'Analyses [Université de Lille] (CUMA) ; Université de Lille, Droit et Santé | Centre d'Etudes et de recherche en Santé-Travail-Environnement (CERESTE) | CSIC-Barcelone | Faculteit der Aard- en Levenswetenschappen, Vrije Universiteit ; Vrije Universiteit Amsterdam [Amsterdam] (VU) | INSTITUTE OF ENVIRONMENTAL AND BIOLOGICAL SCIENCES LANCASTER GBR ; Partenaires IRSTEA ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)
International audience | Concentrations of 11 elements were quantified in five marine species from different trophic levels of a food web (algae, mussel, shrimp and fish), representative for shallow Senegalese coastal waters, and including species of commercial importance. Significant differences in element concentrations and bioaccumulation were demonstrated, revealing the utility of employing a suite of organisms as bioindicators to monitor metal contamination in coastal areas. There was no clear seasonal pattern in concentration of elements, however inter-site differences were observed. Calculations of transfer factors for all the studied elements showed that transfer factors from water were greater than those from sediments. For shrimp and mussel, the concentrations of Pb and Cd were below the EU's maximum level for human consumption, however high concentrations of arsenic in shrimp were recorded at all sites.
Mostrar más [+] Menos [-]Phthalate monoesters as markers of phthalate contamination in wild marine organisms
2016
The level of phthalate esters (PAEs) alone is not considered to be a sufficient indicator of PAE pollution due to the quick metabolism of PAEs in the biota. The primary metabolites of PAEs, monoalkyl phthalate esters (MPEs), may also be an important indicator. However, PAE metabolism has scarcely been documented in wild marine organisms. We analysed five PAEs [dimethyl phthalate (DMP), diethyl phthalate (DEP), di-n-butyl phthalate (DBP), di(2-ethylhexyl) phthalate (DEHP), and di-n-octyl phthalate (DNOP)] and their corresponding MPEs [mono-methyl phthalate (MMP), mono-ethyl phthalate (MEP), mono-n-butyl phthalate (MBP), mono-2-ethylhexyl phthalate (MEHP), and mono-n-octyl phthalate (MNOP)] in 95 wild aquatic marine samples (including fish, prawns and molluscs) collected from the Yangtze River Delta area of the East China Sea. The species-dependent distribution of these compounds was associated with the food habits, living patterns and trophic levels of the biota. Slightly higher levels of hydrophobic PAEs (DBP and DEHP, logKOW 4.27 and 7.33, respectively) were observed in fish species consuming benthic organisms or in demersal fish species, suggesting the importance of benthic organisms and sediment. Trophic dilution of both PAEs and MPEs implies further metabolic transformation at higher trophic levels. MPE tissue distributions in fish demonstrate that the highest concentrations were always observed in bile. Metabolism via the kidney and gill is a probable main way for the relatively less hydrophobic MPEs (logKOW = <4.73, from MMP to MEHP), whereas metabolism via the liver is likely the main way for the most hydrophobic MNOP (logKOW 5.22). Generally, higher detection frequencies of MPEs were observed than those of parent PAEs. Significant liner correlations were observed between the levels of short-branched (carbon atom per chain = <4) MPEs and the sum of PAEs and MPEs (n = 95, p < 0.01), demonstrating that short-branched MPEs can be used as biomarkers of exposure to quantitatively reflect parent PAE contamination in wild marine organisms.
Mostrar más [+] Menos [-]Fouling organisms in marine litter (rafting on abiogenic substrates): A global review of literature
2021
Póvoa, Alain Alves | Skinner, Luís Felipe | de Araújo, Fábio Vieira
One of the underestimated consequences of marine litter presence on marine environment is the transportation of fouling species on detritus – a process known as rafting. We undertook a review of articles concerning rafting published between 1970 and 2020 to identify patterns and potential areas of study that could contribute to directing future research. We observed in 53 publications an increase in rafting studies from the 1990s but fewer studies have been undertaken in the Southern Atlantic. The main fouling organisms were algae, barnacles, bryozoans, mollusks and polychaetes. The transport of those organisms over time and distances, and the volumes of material transported, have been very irregular, reflecting oceanic movements and detritus generating events acting at local, regional, or trans-oceanic scales. No standardized methodologies for collecting marine litter and identifying and quantifying their fouling were observed, but are suggested in this review, to allow more accurate future comparisons among different studies.
Mostrar más [+] Menos [-]Heavy metal pollution and stable isotope ratios (δ13C and δ15N) in marine organisms from the Northern Beibu Gulf, South China Sea
2021
Yang, Changping | Zhang, Zaiwang | Liu, Yan | Shan, Binbin | Yu, Wei | Li, Hengxiang | Sun, Dianrong
Twenty biota species were collected from the Northern Beibu Gulf to understand the heavy metal pollution status and biomagnification characteristics. Mean concentrations (μg/g) of Mn, Zn, Pb, Cr, Ni, As, Cu, and Cd in the biota species were 0.99, 38.33, 0.14, 0.079, 0.085, 51.10, 7.92, and 0.21, respectively. As levels in most biota species exceeded the corresponding guidelines. Crabs were detected with high metal accumulation ability for each heavy metal except Pb. The ranges of δ¹⁵N and δ¹³C in organisms were from 8.0‰ to 15.6‰ and from −21.4‰ to −15.6‰, respectively. Cr, Mn, Ni, and As showed potential biomagnification trends in the food webs. The EDI values of these elements decreased by the sequence of As > Zn > Cu > Mn > Cd > Pb > Ni > Cr. High THQ and CR values for As indicated a potential health risk by consumption of these aquatic products.
Mostrar más [+] Menos [-]Polycyclic aromatic hydrocarbons (PAHs) in marine organisms from two fishing grounds, South Yellow Sea, China: Bioaccumulation and human health risk assessment
2020
Zhang, Chuchu | Li, Yali | Wang, Chenglong | Feng, Ziyue | Hao, Zhe | Yu, Wenwen | Wang, Teng | Zou, Xinqing
Sediment and marine organism samples collected from Haizhou Bay and Lusi fishing ground in South Yellow Sea, China were analysed for polycyclic aromatic hydrocarbons (PAHs). The concentrations of 16 PAHs in marine organisms ranged from 127.43 to 350.53 ng/g dry weight (dw, Haizhou Bay fishing ground) and from 86.37 to 213.02 ng/g dw (Lusi fishing ground). The dominant compounds were 2- and 3-ring PAHs in marine organism tissues. The main PAH sources were found to be coal combustion. Specific habitat, feeding habit, trophic level and environmental differences may affect the PAH levels in marine organisms in our study area. The biota–sediment accumulation factor (BSAF) decreased with increasing PAH log Kₒw and BSAF values might differ in response to various environmental conditions and species. The excess cancer risk from PAH-contaminated seafood consumption was slightly higher than the guideline value (10⁻⁶), but much lower than the priority risk level (10⁻⁴).
Mostrar más [+] Menos [-]Diclofenac in the marine environment: A review of its occurrence and effects
2018
Bonnefille, Bénilde | Gomez, Elena | Courant, Frédérique | Escande, Aurélie | Fenet, Hélène
Interest in the presence and effects of diclofenac (DCF) and other pharmaceutical products (PPs) in the aquatic environment has been growing over the last 20 years. DCF has been included in the First Watch List of the EU Water Framework Directive in order to gather monitoring data in surface waters. Despite PP input in water bodies, few studies have been conducted to determine the extent of DCF occurrence and effects on marine ecosystems, which is usually the final recipient of surface waters. The present article reviews available published data on DCF occurrence in marine water, sediment and organisms, and its effects on marine organisms. The findings highlight the scarcity of available data on the occurrence and effects of DCF in marine ecosystems, and the need for further data acquisition to assess the risks associated with the presence of this compound in the environment.
Mostrar más [+] Menos [-]Polycyclic aromatic hydrocarbons in surface sediments and marine organisms from the Daya Bay, South China
2016
Sun, Run-Xia | Lin, Qin | Ke, Chang-Liang | Du, Fei-Yan | Gu, Yang-Guang | Fanhuolaoren, | Luo, Xiao-Jun | Mai, Bi-Xian
Polycyclic aromatic hydrocarbons (PAHs) were investigated in the marine ecosystem of the Daya Bay, South China. The PAH concentrations ranged from 340 to 710ng/g dry weight in the sediments and from 110 to 520ng/g wet weight in marine organisms, respectively. The dominant compounds were three- and four-ring PAHs in the sediments (53%–89%) and two- and three-ring PAHs in the marine species (67%–94%), respectively. PAHs mainly originated from both pyrolytic and petrogenic sources. Comparison with the effects-based sediment quality guideline values suggested that the ecological risk caused by the total PAHs was relatively low (less than 25% incidence of adverse effects) in the sedimentary environment. The median cancer risk level via seafood consumption (1.6×10−5 for urban residents and 1.2×10−5 for rural residents, respectively) was slightly higher than the maximum admissible level (10−5) set by US EPA, but lower than the priority risk level (10−4).
Mostrar más [+] Menos [-]Occurrence of microplastics in the gastrointestinal tract of benthic by–catches from an eastern Mediterranean deep–sea environment
2022
Esposito, Giuseppe | Prearo, Marino | Renzi, Monia | Anselmi, Serena | Cesarani, Alberto | Barceló, Damià | Dondo, Alessandro | Pastorino, Paolo
Concern about microplastic pollution little is known about levels in deep-sea species; to fill this knowledge gap, levels of microplastics in the gastrointestinal (GI) tracts of 34 fish from eight different deep–sea by–catches: blackmouth catshark, lesser spotted dogfish, and velvet belly, armless snake eel, hollowsnout grenadier, phaeton dragonet, royal flagfin, and slender snipe eel were measured. All were collected at the same site (east Sardinia, Mediterranean Sea; 40°10′12.49″N, 9°44′12.31″E) using a bottom gillnet at depths between −820/250 and −1148 ft./350 m. Microplastics (MPs) were retrieved in 16 out of 34 fish. At least one microplastic item was found in 48% (33%, E. spinax - 75%, G. melastomus) of the samples. The most frequent was polyethylene (PE), with nine items (filaments, films, fragments) found in five specimens. This preliminary study of by–catches adds new data on MPs ingestion by species inhabiting a deep–sea environment of the Mediterranean.
Mostrar más [+] Menos [-]Ecological risk assessment to marine organisms induced by heavy metals in China's coastal waters
2018
Wang, Mengzhu | Tong, Yindong | Chen, Cen | Liu, Xianhua | Lu, Yiren | Zhang, Wei | He, Wei | Wang, Xuejun | Zhao, Shen | Lin, Yan
China's coastal environment has been heavily affected by the loading of terrestrial pollutants in recent decades, and quantitative risk assessment is urgently needed to assess the ecological risks of China's coastal environment. We assessed the ecological risks induced by five heavy metals (including Cu, Zn, Pb, Hg and As) in China's coastal waters for three groups of marine organisms (including crustacean, fish and mollusc) based on data obtained from a nationwide unified coastal environment monitoring program consisting of 301 sampling sites. The results show that higher heavy metal concentrations occurred more frequently in the Bohai Sea and in the estuaries of major sea-going rivers. The ecological risks decreased in the following order: Bohai Sea>Yellow Sea>South China Sea>East China Sea. There was generally low ecological risk, but certain hotspots existed near Tianjin and Jinzhou, which had relatively high ecological risks caused by Cu and Zn.
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