| bioaccumulation of arsenic compounds in aquacultural clams (meretrix lusoria) and assessment of potential carcinogenic risks to human health by ingestion. | this study surveyed the total arsenic (as) and as species contents in clams (meretrix lusoria) farmed in areas of hyperendemic blackfoot disease (bfd) in southwestern taiwan. total as and as species in sediment and pond water were also analyzed to examine the bioaccumulation of as in clams in their exposure environment. moreover, potential carcinogenic risks associated with the ingestion of as in aquacultural clams were evaluated probabilistically. the average total as contents in medium-sized a ... | 2007 | 17537481 |
| occurrence and seasonal variation of alkylphenols in marine organisms from the coast of taiwan. | the occurrence and distribution of alkylphenols (aps, i.e., 4-tert-octylphenol (4-t-op) and 4-nonlyphenol isomers (4-np)) in oysters (crassostrea gigas), snails (thais clavigera), coastal water and coastal sediments of the western coast of southern taiwan are investigated. alkylphenols were present in all matrices of interest: in water, ranging from 61 to 370 ng/l, in sediments, ranging from 27 to 190 ng/g, and in biota samples (i.e., oyster and snail), ranging from 20 to 5190 ng/g. statistical ... | 2006 | 16860368 |
| assessing the human health risks from exposure of inorganic arsenic through oyster (crassostrea gigas) consumption in taiwan. | this study estimated the human health risk associated with ingesting inorganic arsenic through consumption of farmed oysters in taiwan. two hundred fifty-four samples of oyster (crassostrea gigas) were collected from four townships in southwest coastal areas, where 90% of taiwan's oysters are produced. the concentrations of total arsenic and arsenic species including as(v), as(iii), monomethylarsonic acid (mma) and dimethylarsinic acid (dma) were analyzed. the analytical results reveal that the ... | 2006 | 16122780 |
| accumulation of organotin compounds in pacific oysters, crassostrea gigas, collected from aquaculture sites in taiwan. | butyltin and phenyltin residues were quantified in pacific oysters (crassostrea gigas), which were collected from several aquaculture sites along the west coast of taiwan during different seasons. butyltin compounds were detected in all of the samples, except in the oysters collected from the wanggung site in november 2002. monophenyltin and diphenyltin compounds were not detected in any of the samples. the average concentrations of monobutyltin, dibutyltin, tributyltin and tetrabutyltin in the ... | 2003 | 12922059 |
| heavy metal concentrations of the soldier crab (mictyris brevidactylus) along the inshore area of changhua, taiwan. | in order to compare with and assess the metal-accumulating ability of the soldier crab (mictyris brevidactylus), the concentrations of copper (cu), zinc (zn), nickel (ni), lead (pb) and cadmium of ambient water and the pacific oyster (crassostrea gigas) were investigated. seawater, soldier crabs and pacific oysters were simultaneously collected from the changhua coastal area, located in west-central taiwan. the pacific oyster and stream results proved that site b is contaminated by cu, zn and pb ... | 2009 | 18600467 |
| spatiotemporal distribution of arsenic species of oysters (crassostrea gigas) in the coastal area of southwestern taiwan. | this study investigated total arsenic (as) and as species contents of oysters (crassostrea gigas) in different production areas, seasons and sea locations on the southwestern coast of taiwan. analytical results indicate that contents of total as, arsenite, arsenate, dimethylarsinic acid, monomethylarsonic acid and arsenobetaine in oysters are 9.90+/-3.68, 0.091+/-0.104, 0.033+/-0.038, 0.529+/-0.284, 0.037+/-0.046 and 3.94+/-1.33 mg/g (dry wt), respectively. a ratio of inorganic as concentrations ... | 2008 | 17503201 |
| concentrations of polychlorinated biphenyl congeners in cultivated oysters (crassostrea gigas) in western taiwan. | spatial and temporal variations of polychlorinated biphenyl (pcb) concentrations in cultivated oysters from five aquaculture areas along the western coast of taiwan were investigated. poor correlations between total pcb concentrations (ng/g dry weight [dw]) and physiologic parameters of oysters (shell length, width, thickness, and lipid content) were found. total pcb concentrations ranged from 3.4 to 94 cng/g dw. the highest value was found in oysters from the lu'ermen aquaculture area, which re ... | 2006 | 16583259 |
| rock-shells (thais clavigera) as an indicator of as, cu, and zn contamination on the putai coast of the black-foot disease area in taiwan. | this study presents the distribution of arsenic (as), copper (cu), and zinc (zn) in various seafoods-oysters (crassostrea gigas), false fusus (hemifuscus tuba), venus clams (cyclina sineasis), green mussels (perna viridis), blood clams (arca granosa), flounders (psettodes erumei), and rock-shells (thais clavigera) collected from the putai coast of the black-foot disease (bfd) area in taiwan. special attention is paid to evaluate the relationships among as, cu, and zn and effect of body size on m ... | 1997 | 9175516 |
| effects of toxic dinoflagellates and toxin biotransformation in bivalves. | attempts were made to elucidate the different responses of shellfish to paralytic shellfish poison (psp) and the psp donor alexandrium minutum t1. five species of edible bivalves (crassostrea gigas, meretrix lusoria, mytilus edulis, ruditapes philippinarum, and soletellina diphos) were collected and examined for susceptibility to psp and psp donor. it was determined that all five bivalves had low susceptibility to psp following an intramuscular injection (> 300 mu/20 g). the abnormal effects on ... | 2002 | 12503874 |
| butyltin accumulation in marine bivalves under field conditions in taiwan. | this study aimed to characterize the butyltin bioaccumulation in a simple food chain under varied conditions. significant trophic level magnification factors of tributyltin (21.5-1546) were observed in two filter-feeders, oysters (crassostrea gigas) and mussels (perna viridis), in an environment with low tributyltin pollution levels (0.4-13.1 ng l(-1) as tin). both of these bivalve species showed higher bioaccumulation factors (bafs) of tributyltin under low pollution levels, while smaller magni ... | 2010 | 20488529 |
| toxicity and bioaccumulation of tributyltin and triphenyltin on oysters and rock shells collected from taiwan maricuture area. | the present study was undertaken to evaluate the toxicity of tributyltin (tbt) on oysters (crassostrea gigas) and bioaccumulation of tbt and triphenyltin (tpht) on oysters and rock shells (thais clavigera) from mariculture areas of taiwan. when treated with concentrations of 0.08, 0.40, 2.00, 10.00 and 50.00 microg tbt/l, the 48-, 72-, 96- and 120-h lc50s of oysters were 44.6, 18.4, 17.9 and 14.3 microg tbt/l, respectively. in the bioaccumulation experiments, oysters and rock shells were exposed ... | 2005 | 16198676 |