Effect of Body Size on Accumulation of Po210 in Mussel, Perna viridis, at Samut Sakhon Province

Boonsom Porntepkasemsan; Kanitha Srisuksawad; Vorapot Permnamthip

doi:10.4028/www.scientific.net/AMR.931-932.624

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 931-932Effect of Body Size on Accumulation of Po210 in...

Effect of Body Size on Accumulation of Po²¹⁰in Mussel, Perna viridis, at Samut Sakhon Province

Abstract:

Levels of ²¹⁰Po in mussel (Perna viridis) collected from green mussel farming area at the Samut Sakhon province during the period of 2012 are presented. Parameters including total tissues wet weight and dry weight, maximum length, and the physiological performance of mussels using Condition Index were measured. The type of fluctuations observed with ²¹⁰Po concentrations are interpreted as a seasonal effect which peaks of high concentrations in wet season and low concentrations in dry season. Analysis of ²¹⁰Po activities in mussel (activity per individual) revealed the lower activities in smaller sized mussels (2.0-2.5 cm) and the higher in the larger sized group (6.5-7.0 cm). In the contrary, ²¹⁰Po concentrations decreased with increasing shell length, or with increasing body size. The ²¹⁰Po body burdens (activity per mussel) varied from 2.413 to 17.183 mBq while the ²¹⁰Po concentrations were ranged from 2.511 to 4.474 Bq.Kg^-1 ww. The results indicated that larger mussels were transfer lower ²¹⁰Po concentrations to consumer on a weight basis. It is concluded that the apparent seasonal fluctuation of radionuclide concentration were mostly caused by mussel body size fluctuation and not by radionuclide body burden fluctuation.

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Periodical:

Advanced Materials Research (Volumes 931-932)

Pages:

624-628

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.931-932.624

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Online since:

May 2014

Authors:

Boonsom Porntepkasemsan*, Kanitha Srisuksawad, Vorapot Permnamthip

Keywords:

Body Burden, Condition Index, Gulf of Thailand, Mussel, Po-210

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