Bioaccumulation of cadmium in Geloina coaxans (Gmelins, 1791) in the mangroves of Marinduque, Philippines

Date

2003

Abstract

This study was conducted to determine the major sources of cadmium pollution in the coastal areas of Marinduque and determine the cadmium bioaccumulation of Geloina coaxans (Gmelin 1791) in mangrove sediments adjacent to or near the major sources of cadmium. Total cadmium content of the sediments and the flesh of G. coaxans (Gmelin, 1791) was determined by induced coupled plasma spectrophotometry (ICPS). The identified major sourcees of cadmium in the coastal areas were Marinduque Mining Corporation (MMC) Causeway in Calancan Bay, Sta. Cruz, Consolidated Mining Incorporated (CMI) Causeway and tailing piles in Pili, Ino, Capayang, Mogpog, Mogpog River and Boac River. These major sources have sediment quality criterion for Cd, 0.07 mg/kg. Adjacent mangrove areas were also contaminated with cadmium. These mangrove areas in Kamandugan, Ipil, Nangka II, abigue, Layalay and Salomague Island were the stations for the bioaccumulation study. The latter was the contro and source of G. coaxans (Gmelin, 1791). The Cd bioaccumulation factor of G. coaxans (Gmelin, 1791) in sediments with high Cd content was as high as 0.023 but in sediments with low Cd content, reached a high of 0.06 The Cd content of G. coaxans (Gmelin, 1791) poses a threat to human health through the process of biomagnification.

Document Type

Master Thesis

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 995 2003 E8 L84

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