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Nyeste K, Zulkipli N, Uzochukwu IE, Somogyi D, Nagy L, Czeglédi I, Harangi S, Baranyai E, Simon E, Nagy SA, Velcheva I, Yancheva V, Antal L. Assessment of trace and macroelement accumulation in cyprinid juveniles as bioindicators of aquatic pollution: effects of diets and habitat preferences. Sci Rep 2024; 14:11288. [PMID: 38760438 PMCID: PMC11101635 DOI: 10.1038/s41598-024-61986-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024] Open
Abstract
Juveniles of three cyprinids with various diets and habitat preferences were collected from the Szamos River (Hungary) during a period of pollution in November 2013: the herbivorous, benthic nase (Chondrostoma nasus), the benthivorous, benthic barbel (Barbus barbus), and the omnivorous, pelagic chub (Squalius cephalus). Our study aimed to assess the accumulation of these elements across species with varying diets and habitat preferences, as well as their potential role in biomonitoring efforts. The Ca, K, Mg, Na, Cd, Cr, Cu, Fe, Mn, Pb, Sr, and Zn concentration was analyzed in muscle, gills, and liver using MP-AES. The muscle and gill concentrations of Cr, Cu, Fe, and Zn increased with trophic level. At the same time, several differences were found among the trace element patterns related to habitat preferences. The trace elements, including Cd, Pb, and Zn, which exceeded threshold concentrations in the water, exhibited higher accumulations mainly in the muscle and gills of the pelagic chub. Furthermore, the elevated concentrations of trace elements in sediments (Cr, Cu, Mn) demonstrated higher accumulation in the benthic nase and barbel. Our findings show habitat preference as a key factor in juvenile bioindicator capability, advocating for the simultaneous use of pelagic and benthic juveniles to assess water and sediment pollution status.
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Affiliation(s)
- Krisztián Nyeste
- Department of Hydrobiology, University of Debrecen, P.O. Box 57, Debrecen, 4032, Hungary.
- National Laboratory for Water Science and Water Safety, University of Debrecen, Debrecen, 4032, Hungary.
| | - Nurfatin Zulkipli
- Department of Hydrobiology, University of Debrecen, P.O. Box 57, Debrecen, 4032, Hungary
- Pál Juhász-Nagy Doctoral School of Biology and Environmental Sciences, University of Debrecen, Debrecen, 4032, Hungary
| | - Ifeanyi Emmanuel Uzochukwu
- Department of Hydrobiology, University of Debrecen, P.O. Box 57, Debrecen, 4032, Hungary
- Pál Juhász-Nagy Doctoral School of Biology and Environmental Sciences, University of Debrecen, Debrecen, 4032, Hungary
| | - Dóra Somogyi
- Department of Hydrobiology, University of Debrecen, P.O. Box 57, Debrecen, 4032, Hungary
- Pál Juhász-Nagy Doctoral School of Biology and Environmental Sciences, University of Debrecen, Debrecen, 4032, Hungary
| | - László Nagy
- Department of Hydrobiology, University of Debrecen, P.O. Box 57, Debrecen, 4032, Hungary
| | - István Czeglédi
- HUN-REN Balaton Limnological Research Institute, Tihany, 8237, Hungary
- National Laboratory for Water Science and Water Security, HUN-REN Balaton Limnological Research Institute, Tihany, 8237, Hungary
| | - Sándor Harangi
- Department of Inorganic and Analytical Chemistry, Agilent Atomic Spectroscopy Partner Laboratory, University of Debrecen, Debrecen, 4032, Hungary
| | - Edina Baranyai
- Department of Inorganic and Analytical Chemistry, Agilent Atomic Spectroscopy Partner Laboratory, University of Debrecen, Debrecen, 4032, Hungary
| | - Edina Simon
- Department of Ecology, University of Debrecen, Debrecen, Debrecen, 4032, Hungary
- ELKH-DE Anthropocene Ecology Research Group, Debrecen, 4032, Hungary
| | - Sándor Alex Nagy
- Department of Hydrobiology, University of Debrecen, P.O. Box 57, Debrecen, 4032, Hungary
- National Laboratory for Water Science and Water Safety, University of Debrecen, Debrecen, 4032, Hungary
| | - Iliana Velcheva
- Department of Ecology and Environmental Conservation, Faculty of Biology, Plovdiv University, 4000, Plovdiv, Bulgaria
| | - Vesela Yancheva
- Department of Ecology and Environmental Conservation, Faculty of Biology, Plovdiv University, 4000, Plovdiv, Bulgaria
| | - László Antal
- Department of Hydrobiology, University of Debrecen, P.O. Box 57, Debrecen, 4032, Hungary
- National Laboratory for Water Science and Water Safety, University of Debrecen, Debrecen, 4032, Hungary
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Wang X, Liu BL, Zhang XH, Cao SQ, Gao XQ, Zhao KF, Zhang CX. Environmentally relevant concentrations of Mn 2+ disrupts the endocrine regulation of growth in juvenile Yunlong groupers (Epinephelus moara♀×Epinephelus lanceolatus♂). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 264:106714. [PMID: 37862731 DOI: 10.1016/j.aquatox.2023.106714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 09/13/2023] [Accepted: 09/30/2023] [Indexed: 10/22/2023]
Abstract
Even though manganese is a bioelement essential for metabolism, excessive manganese levels in water can be detrimental to fish development and growth. Therefore, the aim of this study was to evaluate the effects of Mn2+ (0, 0.5,1, 2, and 4 mg·L-1) exposure for 30 d on the growth performance, growth hormone/insulin-like growth factor (GH/IGF) axis, hypothalamic-pituitary-thyroid (HPT) axis, and monoaminergic neurotransmitters of Epinephelus moara♀×Epinephelus lanceolatus♂(Yunlong grouper). Compared with the control and low Mn2+concentration groups of (0.5 and 1 mg·L-1), the high concentration of Mn2+ (4 mg·L-1) significantly reduced body weight (BW), body length (BL), weight gain rate (WGR), and specific growth rate (SGR), increased the feed coefficient rate (FCR) and mortality of Yunlong groupers (P < 0.05). Further, the levels of GH and IGF, along with the expression of ghra and ghrb were significantly reduced after exposure to 2 and 4 mg·L-1 Mn2+for 30 d, whereas the expression of sst5 was significantly up-regulated after exposure to 2 and 4 mg·L-1 Mn2+for 20 and 30 days. Moreover, Mn2+exposure increased thyroid hormone (T3) and thyroid stimulating hormone (TSH) contents, accompanied by increased mRNA levels of dio1 and dio2, however, the T4 level was decreased. Finally, dopamine (DA) and serotonin (5-HT) levels significantly decreased after long-term exposure to higher concentrations of Mn2+, and the levels their metabolites changed as well, suggesting that the synthesis and metabolism of DA and 5-HT were affected. Accordingly, changes in the GH/IGF and HPT axes-related parameters may be the cause of growth inhibition in juvenile groupers under Mn2+ exposure, indicating that the relationship between endocrine disorder and growth inhibition should not be ignored.
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Affiliation(s)
- Xi Wang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, PR China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, PR China
| | - Bao-Liang Liu
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, PR China.
| | - Xian-Hong Zhang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, PR China
| | - Shu-Quan Cao
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, PR China
| | - Xiao-Qiang Gao
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, PR China
| | - Kui-Feng Zhao
- Yuhai Hongqi Ocean Engineering Co. LTD, Rizhao 276800, PR China
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Cai S, Shen Z, Wang Q, Cheng J, Yan X, Zeng B. Bioaccumulation and Health Risk Assessment of Metals in Small-Sized Fish (Rhodeus sinensis, Ctenogobius giurinus) and Mussel (Cristaria plicata) from a River Reservoir, Southwest China. Biol Trace Elem Res 2023; 201:5401-5414. [PMID: 36753037 DOI: 10.1007/s12011-023-03590-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 01/31/2023] [Indexed: 02/09/2023]
Abstract
In order to assess the bioaccumulation and health risk of metals in a river reservoir, concentrations of copper (Cu), zinc (Zn), lead (Pb), cadmium (Cd), arsenic (As), and mercury (Hg) in the water, sediments, two small-sized fish, and a freshwater mussel from the Zhoubai reservoir were examined. The results indicated that all of these metals conform with class one of environmental quality standards for surface water (State Environmental Protection Administration of China, GB 3838-2002). There were no significant differences for total metal concentrations in sediment between the three sampling sites (p > 0.05), but the bioavailable concentrations in S3 were the lowest. The Cd was dominated with exchangeable fraction and showed considerable risk. All metal concentrations except for Pb in Rhodeus sinensis were significantly higher than those in Ctenogobius giurinus (p < 0.05). The metal concentrations in Cristaria plicata showed a similar pattern of bioavailable metals in sediment, indicating that the metal concentrations in aquatic organisms were determined by the bioavailable forms of metals. Negative correlations were observed between the size of fish and concentrations of Cu, Zn, Pb, Cd, and As. However, significant positive correlations were found between the size of mussel and concentrations of Cd (p < 0.01), As (p < 0.05), and Hg (p < 0.01). Zn had the highest BCF values in fish and mussel. The aquatic organisms showed lower ability of metal bioaccumulation from the sediment. Low values of target hazard quotient (THQ), hazard index (HI), and carcinogenic risk (CR) indicated that these metals do not pose a health risk to public through fish and mussel consumption in this study area.
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Affiliation(s)
- Shenwen Cai
- College of Resources and Environment, Zunyi Normal University, Zunyi, China.
| | - Ziwei Shen
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China
| | - Qinghe Wang
- College of Resources and Environment, Zunyi Normal University, Zunyi, China
| | - Junwei Cheng
- College of Resources and Environment, Zunyi Normal University, Zunyi, China
| | - Xiong Yan
- College of Resources and Environment, Zunyi Normal University, Zunyi, China
| | - Boping Zeng
- College of Biology and Agriculture, Zunyi Normal University, Zunyi, China
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Alvarado-Suárez GB, Silva-Briano M, Arzate-Cárdenas MA, Carbajal-Hernández AL, Yáñez-Rivera B, Rico-Martínez R. Feeding behavior of early life stages of the zebrafish Danio rerio is altered by exposure to glyphosate. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:85172-85184. [PMID: 35794329 DOI: 10.1007/s11356-022-21790-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Glyphosate levels and the transfer of glyphosate across trophic levels have rarely been studied in zooplankton. The food preferences of zebrafish during the first-feeding stage (which is critical for the survival of organisms), were analyzed because of the requirement for live food. Larval survival begins to be affected when glyphosate intake exceeds 0.3666 µg/larvae/day, in the case that only the food is contaminated; if the medium is also contaminated, the effects on survival start from 0.2456 µg/larvae/day. It was shown that glyphosate was more likely to be incorporated through the medium than through the food (zooplankton), which supports the results of previous studies that have ruled out the potential for biomagnification. The bioconcentration factor (BCF) of glyphosate was determined using an ELISA tests specific to measure glyphosate in the fish D. rerio, the rotifers Brachionus calyciflorus and Lecane papuana, and the cladoceran Ceriodaphnia dubia. The experimental design consisted in exposing seven zebrafish adults per replica (four replicates) in three treatments 1, 5, and 10 mg/L of glyphosate for 96 h to obtain bioconcentration factors in the gills, liver, and muscle. These concentrations were selected as potential glyphosate concentrations right after application as double highest reported concentration. Glyphosate levels in zooplankton can represent up to 6.26% of the total weight of rotifers (BFC = 60.35) and in zebrafish adult organs were less than 8 µg/mg of tissue (BCF values < 6). Although glyphosate does not biomagnify, our results suggest that glyphosate affected the dynamics between zooplankton and zebrafish larvae, diminishing survival and feeding rates, given that zooplankton species bioconcentrate glyphosate in large quantities. The BCF values found in this contribution are higher than expected. Glyphosate exposure affected energy metabolism and feeding behavior of zebrafish larvae, which presented high mortality rates at environmentally relevant concentrations.
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Affiliation(s)
- Gabriela Beatriz Alvarado-Suárez
- Universidad Autónoma de Aguascalientes, Departamento de Biología, Avenida Universidad 940, Ags. C. P. 20131, Aguascalientes, Mexico
| | - Marcelo Silva-Briano
- Departamento de Química, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Avenida Universidad 940, Ciudad Universitaria Aguascalientes, Aguascalientes, 20131, México
| | - Mario Alberto Arzate-Cárdenas
- Universidad Autónoma de Aguascalientes, Departamento de Biología, Avenida Universidad 940, Ags. C. P. 20131, Aguascalientes, Mexico
- Cátedras CONACYT, Consejo Nacional de Ciencia Y Tecnología, Av. Insurgentes Sur 1582, Col. Crédito Constructor, Alcaldía Benito Juárez, Ciudad de México, 03940, México
| | - Ana Laura Carbajal-Hernández
- Universidad Autónoma de Aguascalientes, Departamento de Biología, Avenida Universidad 940, Ags. C. P. 20131, Aguascalientes, Mexico
| | - Beatriz Yáñez-Rivera
- Cátedras CONACYT, Consejo Nacional de Ciencia Y Tecnología, Av. Insurgentes Sur 1582, Col. Crédito Constructor, Alcaldía Benito Juárez, Ciudad de México, 03940, México.
- CIAD AC, Unidad Mazatlán en Acuicultura Y Manejo Ambiental, Avenida Sábalo-Cerritos S/N, Estero del Yugo, Mazatlán, Sin. 82112, México.
| | - Roberto Rico-Martínez
- Universidad Autónoma de Aguascalientes, Departamento de Biología, Avenida Universidad 940, Ags. C. P. 20131, Aguascalientes, Mexico.
- Departamento de Química, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Avenida Universidad 940, Ciudad Universitaria Aguascalientes, Aguascalientes, 20131, México.
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Wang X, Gao XQ, Wang XY, Fang YY, Xu L, Zhao KF, Huang B, Liu BL. Bioaccumulation of manganese and its effects on oxidative stress and immune response in juvenile groupers (Epinephelus moara ♀ × E. lanceolatus ♂). CHEMOSPHERE 2022; 297:134235. [PMID: 35271901 DOI: 10.1016/j.chemosphere.2022.134235] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/02/2022] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
We evaluated the effects of Mn in juvenile Yunlong groupers (Epinephelus moara ♀ × E. lanceolatus ♂). The groupers were exposed to Mn2+ (0, 0.5, 1, 2, and 4 mg/L) for 30 days after which they were assessed. The results indicate the accumulation of Mn in fish depended on dose and time. Mn2+ accumulation in tissues occurred in the following order: liver > gills > intestine > muscle. The concentrations of SOD and CAT in the fish significantly increased after 10 and 20 days of treatment with 4 mg/L Mn2+ but decreased after 30 days. Similarly, GSH and GPx levels increased after 10 days of exposure to 2 and 4 mg/L Mn2+ but decreased after 20 and 30 days of exposure. Additionally, malondialdehyde levels significantly increased after exposing the fish to 2 and 4 mg/L Mn2+ for 10, 20, and 30 days. In addition, liver HSP70 and HSP90 levels significantly increased at days 20 and 30 in all fish exposed to Mn2+. In addition, when Mn2+ concentration was 1, 2, and 4 mg/L, liver C3 and C4 levels were significantly increased after 10, 20, and 30 days. Conversely, the levels of LZM and IgM significantly decreased. Mn2+ also significantly upregulated the expression of genes associated with immunity (tlr3, tnf-α, il-1β, and il-6) in the fish, which suggests that it induces immunotoxicity by altering the immune response. Overall, the findings showed that Mn2+ can disrupt grouper health by bioaccumulating in the fish and subsequently inducing oxidative stress and immune responses. These results can help elucidate the mechanism by which manganese induces toxicity in marine fish. Additionally, they provide a new perspective regarding the detrimental effects of heavy metals in fish.
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Affiliation(s)
- Xi Wang
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Xiao-Qiang Gao
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Xin-Yi Wang
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Ying-Ying Fang
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Liang Xu
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Kui-Feng Zhao
- Yuhai Hongqi Ocean Engineering Co. LTD, Rizhao, 276800, China
| | - Bin Huang
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Bao-Liang Liu
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China.
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Herman P, Fehér M, Molnár Á, Harangi S, Sajtos Z, Stündl L, Fábián I, Baranyai E. Iron and Manganese Retention of Juvenile Zebrafish (Danio rerio) Exposed to Contaminated Dietary Zooplankton (Daphnia pulex)-a Model Experiment. Biol Trace Elem Res 2021; 199:732-743. [PMID: 32447578 PMCID: PMC7746567 DOI: 10.1007/s12011-020-02190-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 05/10/2020] [Indexed: 11/13/2022]
Abstract
In present study the effect of iron (Fe) and manganese (Mn) contamination was assessed by modeling a freshwater food web of water, zooplankton (Daphnia pulex), and zebrafish (Danio rerio) under laboratory conditions. Metals were added to the rearing media of D. pulex, and enriched zooplankton was fed to zebrafish in a feeding trial. The elemental analysis of rearing water, zooplankton, and fish revealed significant difference in the treatments compared to the control. In D. pulex the Mn level increased almost in parallel with the dose of supplementation, as well as the Fe level differed statistically. A negative influence of the supplementation on the fish growth was observed: specific growth rate (SGR%) and weight gain (WG) decreased in Fe and Mn containing treatments. The redundancy analysis (RDA) of concentration data showed strong correlation between the rearing water and D. pulex, as well as the prey organism of Fe- and Mn-enriched D. pulex and the predator organism of D. rerio. The bioconcentration factors (BCF) calculated for water to zooplankton further proved the relationship between the Fe and Mn dosage applied in the treatments and measured in D. pulex. Trophic transfer factor (TTF) results also indicate that significant retention of the metals occurred in D. rerio individuals, however, in a much lower extent than in the water to zooplankton stage. Our study suggests that Fe and Mn significantly accumulate in the lower part of the trophic chain and retention is effective through the digestive track of zebrafish, yet no biomagnification occurs. Graphical abstract.
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Affiliation(s)
- Petra Herman
- Department of Inorganic and Analytical Chemistry, Atomic Spectroscopy Partner Laboratory, University of Debrecen, Debrecen, H-4010, Hungary
| | - Milán Fehér
- Faculty of the Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, H-4032, Hungary
| | - Áron Molnár
- Faculty of the Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, H-4032, Hungary
| | - Sándor Harangi
- Department of Inorganic and Analytical Chemistry, Atomic Spectroscopy Partner Laboratory, University of Debrecen, Debrecen, H-4010, Hungary
| | - Zsófi Sajtos
- Department of Inorganic and Analytical Chemistry, Atomic Spectroscopy Partner Laboratory, University of Debrecen, Debrecen, H-4010, Hungary
| | - László Stündl
- Faculty of the Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, H-4032, Hungary
| | - István Fábián
- Department of Inorganic and Analytical Chemistry, Atomic Spectroscopy Partner Laboratory, University of Debrecen, Debrecen, H-4010, Hungary
| | - Edina Baranyai
- Department of Inorganic and Analytical Chemistry, Atomic Spectroscopy Partner Laboratory, University of Debrecen, Debrecen, H-4010, Hungary.
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Bioconcentration of Essential and Nonessential Elements in Black Sea Turbot (Psetta Maxima Maeotica Linnaeus, 1758) in Relation to Fish Gender. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2019. [DOI: 10.3390/jmse7120466] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This study investigates the influence of gender in the bioconcentration of essential and nonessential elements in different parts of Black Sea turbot (Psetta maxima maeotica) body, from an area considered under high anthropogenic pressure (the Constanta City Black Sea Coastal Area in Romania). A number of 13 elements (Ca, Mg, Na, K, Fe, Zn, Mn, Cu, Ni, Cr, As, Pb and Cd) were measured in various sample types: muscle, stomach, stomach content, intestine, intestine content, gonads, liver, spleen, gills and caudal fin. Turbot adults (4–5 years old) were separated, according to their gender, into two groups (20 males, 20 females, respectively), and a high total number of samples (1200 from both groups) were prepared and analyzed, in triplicate, with Flame Atomic Absorption Spectrometry and High-Resolution Continuum Source Atomic Absorption Spectrometry with Graphite Furnace techniques. The results were statistically analyzed in order to emphasize the bioconcentration of the determined elements in different tissues of wild turbot males vs. females, and also to contribute to an upgraded characterization of the Romanian Black Sea Coast, around Constanta City, in terms of heavy metals pollution. The essential elements Mg and Zn have different roles in the gonads of males and females, as they were the only elements with completely different patterns between the analyzed groups of specimens. The concentrations of studied elements in muscle were not similar with the data provided by literature, suggesting that chemistry of the habitat and food plays a major role in the availability of the metals in the body of analyzed fish species. The gender influenced the bioaccumulation process of all analyzed elements in most tissues since turbot male specimens accumulated higher concentration of metals compared to females. The highest bioaccumulation capacity in terms of Ca, Mg, Na, Ni, As, Zn and Cd was registered in caudal fin, liver and intestine tissues. Also, other elements such as K, Fe, Cu and Mn had the highest bioaccumulation in their muscle, spleen, liver and gills tissues. The concentrations of toxic metals in Black Sea turbot from this study were lower in the muscle samples compared with the studies conducted in Turkey, suggesting that the anthropogenic activity in the studied area did not pose a major impact upon the habitat contamination.
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Polyakova EV, Nomerotskaya YN, Saprykin AI. Determination of Zinc Impurity Composition by Microwave Plasma Atomic Emission Spectrometry. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s1061934819070074] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Cladocerans as indicators in the importance of passive nature conservation. Biologia (Bratisl) 2018. [DOI: 10.2478/s11756-018-0097-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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