Data/hora: 05/06/2024 04:23:47

Provedor de dados: | 20
País: | Belgium

Título:

Bioaccumulation of mercury in some marine organisms from Lake Timsah and Bitter Lakes (Suez Canal, Egypt)

تراكم الزئبق فى بعض الكائنات البحرية من بحيرة التمساح والبحيرات المرة

Autores: | El-Moselhy, K.M.
Data: | 2007-01-24
Ano: | 2006
Palavras-chave: | Chemistry Studies; Mercury; Bioaccumulation; Marine organisms; Heavy metals; Bioaccumulation; Mercury; Http://aims.fao.org/aos/agrovoc/c_32389; Http://aims.fao.org/aos/agrovoc/c_4751.
Resumo: | The present work is devoted to determine the level of total mercury in the different tissues of fish Mugil seheli, crab Portunus pelagicus, shrimp Metapenaeus stebbingi, and bivalves Paphia undulata and Gafrarium pectinatum collected from Lake Timsah and Bitter Lakes during spring 2003. In addition, factors affecting the accumulation of mercury in these organisms were studied. Levels of Hg in the edible parts of the investigated organisms showed the ranges 2.62 – 25.45 and 0.94 – 7.94 ng/g wet wt. in fish, 16.02 – 117.26 and 9.86 – 64.18 ng/g wet wt. in crab, 4.55 – 14.67 and 5.76 – 15.58 ng/g wet wt. in shrimp, and 1.06 – 36.31 and 5.38 – 69.59 ng/g wet wt. in bivalves from Lake Timsah and Bitter Lakes, respectively. High accumulation of Hg was recorded in Lake Timsah organisms which receives wastewaters from different polluted sources. Also, high concentration of Hg was detected in the internal organs of the organisms, especially liver compared with a lower one for the edible tissues. Regression curves and ANOVA analysis were used to study the effect of growth rate, species, sex and sites variation on the accumulation of mercury in the edible parts of the studied organisms. The results obtained from the regression curves and inter-spatial variation indicated that the bivalve Paphia undulata could be used as bioindicator for mercury pollution.
Tipo: | Journal Contribution
Idioma: | Inglês

Identificador:

Egyptian journal of aquatic research, 32(1). p. 124-134

1687-4285

http://hdl.handle.net/1834/1451

Editor: | National Institute of Oceanograhy and Fisheries (NIOF)

Formato:

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