Accumulation of Heavy Metals (Zn, Cu, Pb, Cd) in Flat-Tree Oysters Isognomon Alatus Exposed to Pig Farm Effluent

Saed, Katayon; Ismail, Ahmad; Omar, Hishamuddin; Kusnan, Misri

doi:10.1080/713746657

Cited by 13 publications

(21 citation statements)

References 19 publications

(25 reference statements)

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“…In addition, the plotting of the Zn concentrations in the different geochemical fractions of the sediment with those of the byssus and ST were fitted to statistical equations including linear [ Y = a + bx ], logarithmic [ Y = a + b log x ], and exponential [ Y = a ( e bx )] equations, by using the KaleidaGraph graphical software. The curve equation which gave the highest R-values was selected [14].…”

Section: Zn Analysismentioning

confidence: 99%

Byssus of the Green-Lipped Mussel Perna viridis (Linnaeus) as a Biomonitoring Material for Zn

2005

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Recently, Yap et al. (2003) suggested that the byssus of the green-lipped mussel Perna viridis can be a biomonitoring material for Zn although further validation is required. In this work, we did a simple correlation study between Zn concentrations in the byssus (and soft tissue) and in different geochemical fractions of the sediment. A significant ( P < 0.01) Pearson's correlation coefficient ( R = 0.84) between the Zn concentrations in the byssus and soft tissue indicated that the Zn level in the byssus is highly correlated to its level in the soft tissue and that the byssus could act as an excretion route for Zn. Higher R-values were found between the byssus-easily or freely, leachable and exchangeable, byssus-acid-reducible, byssus-oxidizable-organic and byssus-nonresistant fractions of the sediment, and the byssus-Zn concentration in the total sediment when compared to those found between the soft tissue and the same geochemical fractions. This indicated that the byssus was more reflective of Zn contamination in the field environment than the soft tissue. Therefore, the data further support the use of the byssus as a biomonitoring material for Zn as was originally suggested by Yap et al. [3].

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Section: Zn Analysismentioning

confidence: 99%

Byssus of the Green-Lipped Mussel Perna viridis (Linnaeus) as a Biomonitoring Material for Zn

2005

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“…Dried samples were crushed and sieved through a 0.63 mm stainless steel sieve. The aqua-regia digestion method was used according to the procedure of [23] and [24]. About 1g of ground dried sediment was digested in a 10 mL mixture (4:1) of nitric acid and perchloric acid.…”

Section: Sedimentmentioning

confidence: 99%

Impact of Selected Heavy Metal (Cd, Pb, Cu and Zn) Concentration on Histological Changes of 2 Species of Estuarine Catfish (Small, Medium and Large Size) Arius thalassinus and Plotosus Anguillaris

A¹,

Ismail²,

Omar³

et al. 2021

JUSST

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Aquatic systems are exposed to a vast number of pollutants that are mainly contained in effluents discharged from industries, sewage treatment plants, and drainage from urban and agricultural areas. This study was conducted to establish baseline information of selected heavy metals (Pb, Cd, Zn, and Cu) in the sediment of two rivers (Kuala Gula and Sepang) and histopathological changes using catfish species (Arius thalassinus and Plotosusanguillaris) as an animal bioindicator. Heavy metals concentration was determined by using atomic absorption spectrophotometer (AAS). The histological changes in gills and liver were detected microscopically and evaluated with criteria of scoring in each organ with emphasis on the histological alterations in these organs. The results showed the highest values of metals concentration were in large fish of Arius thalassinus and lowest concentration while in smallPlotosusanguillaris. Tissues damage is also more obvious in larger fish than smaller fish. Concentrations of Cu in the fish gills and livers were below the maximum permissible limit, however, Zn, Pb and Cd exceeded the permissible limit with means metal concentrations in the livers of two species catfish (μg/g-1d.w.). Livers were higher than the gills with metal concentration of Arius thalassinus Zn (233.8) >Pb (63.1)> Cu (12.5) μg/g-1 d.w. Cd (1.35). However, gills register lowest of accumulations these metals in Plotosusanguillaris with means Zn (94.5) > Pb (16.3) >Cu (7.3) > Cd (0.93) μg/g-1 d.w. respectively in small catfish. Several histopathological alterations, tissue damage was more prominent in fishes with the highest heavy metal content where tissue damage was more obvious in larger fish than smaller fish. Tissue damage in the liver is more prominent than in the gill. Damages observed includes increasing monomicrophages cells, vacuolar degeneration and necrosis of the liver, proliferation in the epithelium of gill filaments and fusion of secondary lamellae, severe degenerative and necrosis in the studied tissues of both fish as a result of the accumulated metals. This Study concluded that histopathological changes could be used as a good biomarker for pollution. Higher metal content in fish is coincides with severe tissue damage in larger fish. Hence histopathology can be used as a tool to indicate the impact of heavy metal in fish.

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“…In the literature, only limited biomonitoring studies on trace metals were reported using I. alatus, except for those reported by some researchers (Campos 1988;Jaffe et al 1998;Sbriz et al 1998;Saed et al 2001Saed et al , 2004. Therefore, the objective of the present study was to determine the bioavailabilities and contamination by Fe, Ni, and Cu in the four different soft tissues (mantle plus gill, muscle, byssus, and remaining soft tissue) of I. alatus collected from seven geographical populations in the mangrove areas of Peninsular Malaysia.…”

Section: Introductionmentioning

confidence: 97%

“…In this study, the flat tree oysters Isognomon alatus (Family: Isognomonidae) was focused upon since they are potential candidates for heavy metal biomonitoring studies and they can be widely found along the mangrove estuaries of the Sepang and Lukut areas in the west coast of Peninsular Malaysia. Earlier, Saed et al (2001) studied metal concentrations in oysters after exposure to pig farm effluents, and Saed et al (2004) reported metal depuration using I. alatus under field and laboratory conditions. The above two studies indicated that I. alatus has a strong capability of accumulation and depuration of Cd, Cu, Pb, and Zn and therefore could be used as a suitable biomonitor.…”

Section: Introductionmentioning

confidence: 98%

Biomonitoring of Trace Metals (Fe, Cu, and Ni) in the Mangrove Area of Peninsular Malaysia Using Different Soft Tissues of Flat Tree Oyster Isognomon alatus

Yap

Azmizan

Hanif

2010

Water Air Soil Pollut

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It is well documented that marine oysters are net bioaccumulators of trace metals and they can be employed as biomonitors of time-integrated measurements of bioavailable metal fractions over their lifetime. In this study, the Malaysian mangrove flat tree oyster Isognomon alatus collected from the estuaries of Lukut River (five sites), Sepang Besar River (one site), and one metal-polluted site at Kg. Pasir Puteh were dissected into muscle, mantle plus gills, byssus, and remaining soft tissues. All the four different soft tissues were analyzed for Fe, Cu, and Ni. Significant spatial differences in the accumulated metal concentrations of the oysters were found between sampling sites, and these could be attributed to anthropogenic inputs including discharges of shrimp ponds (Lukut), animal husbandry (Sepang Besar), sewage, shipping, and industrial effluents (Kg. Pasir Puteh). For Fe, the tissue distribution followed: byssus > mantle plus gill >muscle > remaining soft tissues, while for Cu and Ni, both followed byssus > remaining soft tissues > mantle plus gill > muscle. This indicated that byssus could act as an excretion route for the metals. Based on a correlation analysis between oyster tissues and sediments, selected tissues of I. alatus were shown to be good biomonitors of Ni and Cu contamination, while high regulative capacity of Fe in the oyster tissues could hardly reflect the actual Fe levels in the surroundings. However, the clustering patterns based on metal levels in the four different soft tissues were not in agreement with those based on the geochemical fractions of sediment data. This phenomenon which was due to the metal contamination might not necessarily create high bioavailabilities of metals to the biomonitor I. alatus, which might involve differences in uptake, excretion, and sequestration of metals. Similarly to the Mussel Watch approach, this study points to the very potential use of the different soft tissues of I. alatus as biomonitors for regular biomonitoring in the mangrove area of Peninsular Malaysia.

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Accumulation of Heavy Metals (Zn, Cu, Pb, Cd) in Flat-Tree Oysters Isognomon Alatus Exposed to Pig Farm Effluent

Cited by 13 publications

References 19 publications

Byssus of the Green-Lipped Mussel Perna viridis (Linnaeus) as a Biomonitoring Material for Zn

Byssus of the Green-Lipped Mussel Perna viridis (Linnaeus) as a Biomonitoring Material for Zn

Impact of Selected Heavy Metal (Cd, Pb, Cu and Zn) Concentration on Histological Changes of 2 Species of Estuarine Catfish (Small, Medium and Large Size) Arius thalassinus and Plotosus Anguillaris

Biomonitoring of Trace Metals (Fe, Cu, and Ni) in the Mangrove Area of Peninsular Malaysia Using Different Soft Tissues of Flat Tree Oyster Isognomon alatus

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