Determination of Heavy Metal Content in Astacus leptodactylus caspicus of Anzali Wetland, Iran

Riahi, Atefeh; Fazeli, M. S.; Paydar, Maryam

doi:10.5141/jefb.2004.27.1.015

Cited by 6 publications

(3 citation statements)

References 1 publication

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“…Results from the present study indicate that the hepatopancreas bioaccumulated more Pb in crabs injected with Pb compared to other tissues, such as the gills, muscle, and hemolymph. The results from this research are in accordance with other documented reports of bioaccumulation of Pb in the hepatopancreas of crustaceans (Anderson et al, 1997; Macheviciene, 2002; Mistri et al, 2020; Riyahi et al, 2004).…”

Section: Discussionsupporting

confidence: 93%

Lead Inhibits Postecdysial Exoskeletal Calcification in the Blue Crab (Callinectes sapidus)

Osayande

Zou

2022

Enviro Toxic and Chemistry

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Postecdysial mineralization in crustaceans involves the deposition of carbonate salts, such as calcium carbonate, to the organic matrix. Because of the resemblance between Pb2+ and Ca2+, the present study was carried out to investigate whether Pb is incorporated into the new shell during postecdysial mineralization using the blue crab (Callinectes sapidus) as the model crustacean. It was hypothesized that injected Pb would be deposited in the shell via calcium transporters in the epidermis during the mineralization process. Postecdysial blue crabs were injected with two doses of 5 µg Pb/g wet weight each in lead acetate, and then Pb, Ca, and Mg contents were analyzed in the exoskeleton, while only Pb bioaccumulation was quantified for the hepatopancreas, gills, muscles, and hemolymph. The results showed a statistically nonsignificant increase in exoskeletal Pb content in Pb‐treated crabs compared to control, suggesting that exoskeletal Pb may not be a sensitive proxy for aquatic Pb pollution. There was a significant decrease in Ca content in Pb‐treated crabs, suggesting that Pb hindered the deposition of Ca to crab exoskeleton, thereby obstructing calcification. A trend of a decrease in exoskeletal Mg was also observed in Pb‐treated crabs. There was a significant increase in Pb content found in the gills, hepatopancreas, muscle, and hemolymph in Pb‐treated crabs. The rank of the Pb level among three soft tissues in a decreasing order is hepatopancreas > gill > muscle. This is the first study to present evidence that Pb disrupts postecdysial exoskeletal calcification in a crustacean. Environ Toxicol Chem 2022;41:474–482. © 2021 SETAC

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Section: Discussionsupporting

confidence: 93%

Lead Inhibits Postecdysial Exoskeletal Calcification in the Blue Crab (Callinectes sapidus)

Osayande

Zou

2022

Enviro Toxic and Chemistry

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“…With regard to a greater volume of heavy metals in the eastern part of the wetland, these results are compatible with the study of Shahsavari-Pour et al [16], who carried out a research on the biomonitoring and evaluation of mercury contamination in Anzali Wetland, and also with another study [17], who measured the heavy element contents in Astacus leptodactylus caspicus in the same area. The findings are also consistent with another study [5], in which Anodonta cygnea as a potential biomonitor for Cd and Pb in the mentioned wetland was studied.…”

Section: Discussionsupporting

confidence: 91%

Heavy Metal Contamination in the Sediments of Anzali International Wetland, Northern Iran Based on Type Regional Development

Ganjali

Ghasemi

2016

IJT

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Background: The most important factors and problems threatening the Anzali Wetland are the contaminant load and sediments entering the wetland, as well as lack of an integrated management plan for this wetland. The main objectives of the current research were to explore whether there are significant differences in concentrations of Zn, Cd, and Pb in surface sediments among different sites (based on type region development) of the Anzali Wetland, Northern Iran. Methods: Through a field study, samples were collected from 10 stations based on the type of regional development and contaminant source inputs of Anzali Wetland in 2015. Using a hot-block digester, the sediment samples were digested with a 4:1 combination of nitric acid (HNO3) and perchloric acid (HCLO4) for one hour at 40 °C, followed by 3 h at 140 °C. Afterwards, samples were filtered with Whatman 42, filter paper and the filtrate was kept in polyethylene containers at 4 °C, until analysis by atomic absorption spectrometry (AAS). Results: Mean ± SD levels of metals in the sediments of different stations were 26.7 ± 3.49 (lead), 4.36 ± 0.47 (cadmium), and 88.44 ± 10.06 (zinc) µg g-1 dw. There was a significant difference between the stations of the wetland (P < 0.05). This difference could be due to the variations in the input of contaminant sources into the Anzali Wetland. Conclusions: The areas, affected by urban and industrial developments, had the highest level of contamination while the agricultural and less-developed areas had the lowest level of contamination, and therefore, protective plans must be implemented in developed areas in order to lower the level of heavy metals.

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“…(Mohammadi et al, 2012). Anzali lagoon is one of the international protected lagoons that were studied by researchers (Amini Ranjbar, 1998;Riyahi et al, 2005, Sharifi, 2006. This lagoon is an ecosystem of many endangered species and has a more effective role in preventing flood and acts such as sediment traps (Kazanci et al, 2004).…”

mentioning

confidence: 99%

Changes in particle sizes and geochemistry of Siyah Keshim lagoon sediment of Gilan province to determine origin and tectonic position of sediment

Saanei¹,

Rezaei²,

Arian³

et al. 2020

Journ. Geol., Geogr., and Geoec..

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Useful information was obtained about the environmental condition of this region such as energy, sediment location, origin, sediment carrying path, pond evolutionary process, and tectonic conditions and origins of sediments by studying physical and geochemical sediment changes processes in place and time, distribution of sediments and elements in lagoon bed, and also identification the effective factors on sediment distribution model. In this regard, 59 sediment samples were taken from Siyah Keshim lagoon and were analyzed chemically and aggregation by XRF and ICP-MS technic. Adaptation of data by Folk diagrams showed that this region is placed in a range of sand, muddy sand, sand with a little gravel, muddy sand with a little gravel, and silty sand. Weak to medium sorting and negative tilting shows sediment in a coastal area. Geochemical evidence shows that SiO2/Al2O3 ratio in these sediments is 2.6-3.7. In addition, Na2O value shows relatively low sediment investigation for sediments of this lagoon. Moreover, determination of the weathering effect in origin place by the chemical index of alteration (CIA) and chemical weathering index (CWI) shows intensive chemical alternation on sediments. Index of combined variety was averagely 1.54 in the studied sediments and show that sediments resulted from the first cycle sediment. Using tectonic separating diagrams based on the primary and secondary oxidants percentage show the sediment in the active continent margin (ACM), continent-island arc (CIA), and oceanic island arc (OIA) and shows that the studied sediments are related to subduction margin.

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Determination of Heavy Metal Content in Astacus leptodactylus caspicus of Anzali Wetland, Iran

Cited by 6 publications

References 1 publication

Lead Inhibits Postecdysial Exoskeletal Calcification in the Blue Crab (Callinectes sapidus)

Lead Inhibits Postecdysial Exoskeletal Calcification in the Blue Crab (Callinectes sapidus)

Heavy Metal Contamination in the Sediments of Anzali International Wetland, Northern Iran Based on Type Regional Development

Changes in particle sizes and geochemistry of Siyah Keshim lagoon sediment of Gilan province to determine origin and tectonic position of sediment

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