Use of Macroalgae and Invertebrates as Monitors of Metal Levels in Estuaries and Coastal Waters

This study is focused on evaluating the trace metal levels in water and tissues of two commercial fish species Arius thalassinus and Pennahia anea that were collected from Kapar and Mersing coastal waters. The concentrations of Fe, Zn, Al, As, Cd and Pb in these coastal waters and muscle, liver and gills tissues of the fishes were quantified. The relationship among the metal concentrations and the height and weight of the two species were also examined. Generally, the iron has the highest concentrations in both water and the fish species. However, Cd in both coastal waters showed high levels exceeding the international standards. The metal level concentration in the sample fishes are in the descending order livers > gills > muscles. A positive association between the trace metal concentrations and weight and length of the sample fishes was investigated. Fortunately the level of these metal concentrations in fish has not exceeded the permitted level of Malaysian and international standards.

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Butyltins, Organochlorines and Metal Levels in Green Mussel, Perna viridis L. from the Coastal Waters of the Philippines

Fisheries Science ◽

10.2331/fishsci.65.441 ◽

1999 ◽

Vol 65 (3) ◽

pp. 441-447 ◽

Cited By ~ 12

Author(s):

Maricar Prudente ◽

Hideki Ichihashi ◽

Supawat Kan-atireklap ◽

Izumi Watanabe ◽

Shinsuke Tanabe

Keyword(s):

Coastal Waters ◽

The Philippines ◽

Perna Viridis ◽

Green Mussel ◽

Metal Levels

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Trace metal levels in fish and Crustacea from northeastern Mediterranean coastal waters

Deep Sea Research Part B Oceanographic Literature Review ◽

10.1016/0198-0254(82)90395-8 ◽

1982 ◽

Vol 29 (12) ◽

pp. 802

Keyword(s):

Trace Metal ◽

Coastal Waters ◽

Metal Levels

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Poisonous Metal Levels in Sediment and Selected Biota in Coastal Waters of Nigeria

Asian Journal of Chemical Sciences ◽

10.9734/ajocs/2021/v9i419079 ◽

2021 ◽

pp. 37-43

Author(s):

F. D. Sikoki ◽

M. C. Onojake ◽

O. Omokheyeke ◽

P. O. Onyagbodor

Keyword(s):

Coastal Waters ◽

Niger Delta ◽

River Estuary ◽

Bioaccumulation Factor ◽

World Health ◽

High Concentration ◽

Energy Agency ◽

Metal Levels ◽

Regulatory Bodies ◽

Health Organization

Sediment and biota samples were collected biannually from the Bonny/New Calabar River Estuary in Niger Delta, Nigeria and analysed for poisonous metals of interest to the International Atomic Energy Agency (Pb, Cd, and Hg) using atomic absorption spectrophotometer A-500 and Direct Mercury analyser (DMA-80). Results for biota showed that Cd ranged from 0.003 to 0.558 ± 0.01mg/kg, Hg ranged from 0.014 ± 0.004 to 0.021± 0.010 mg/kg, Sediment: Cd ranged from 0.022 ± 0.001 – 0.82 ± 0.0002 mg/kg; Hg 0.010 ± 0.005 to 0.027 ± 0.009 mg/kg. Lead was below the detection limit of the instrument both in biota and sediment. The concentrations of the respective poisonous metals were within the permissible limit of the World health organization. The study showed high concentration of Cd in Crayfish compared to other seafood. The bioaccumulation factor showed higher level of Hg compared Cd while the Analysis of variance for the three stations did not show any significant variation among the three stations. Regular monitoring and comparison of level of contamination with regulatory bodies are advocated to prevent the concentration of the metal contaminants from getting to an alarming level.

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