Spatiotemporal distribution of arsineic species of oysters (Crassostrea gigas) in the coastal area of southwestern Taiwan
Resource
Environmental Monitoring and Assessment 138 (1-3): 181-190
Journal
Environmental Monitoring and Assessment
Journal Volume
138
Journal Issue
1-3
Pages
181-190
Date Issued
2008
Author(s)
Abstract
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 to total As concentrations is 1.26%. Total As contents of oysters cultured in the outer sea are statistically significantly lower than those of oysters cultured in the inner sea. The total As contents of oysters is the highest in Putai, where the blackfoot disease prevails. The low As contents in oysters is attributed to the low temperature in winter, which slows the metabolism of oysters. A maximum value is 33.37 μg/g (dry) in Putai in spring, because a considerable amount of aquacultural waste water with high As contents is discharged into adjacent drainage channels and rivers there during that season. © Springer Science+Business Media B.V. 2007.
Subjects
Arsenic species; Blackfoot disease; Oyster; Spatiotemporal distribution
SDGs
Other Subjects
Aquaculture; Arsenic; Coastal zones; Temperature; Wastewater; Arsenic species; Blackfoot disease; Oysters; Spatiotemporal distribution; Marine biology; arsenic; arsenic acid; arsenic derivative; arsenic trioxide; arsenobetaine; cacodylic acid; methanearsonic acid; organoarsenic derivative; aquaculture effluent; aquaculture production; arsenic; bivalve; coastal zone; oyster culture; spatial distribution; temporal distribution; aquaculture; article; bioaccumulation; blackfoot disease; concentration (parameters); controlled study; food contamination; geographic distribution; low temperature; metabolic regulation; nonhuman; oyster; seashore; seasonal variation; species distribution; spring; statistical significance; Taiwan; waste water; winter; animal; environmental monitoring; food contamination; metabolism; oyster; sea food; water pollutant; Asia; Eurasia; Far East; Taiwan; Crassostrea gigas; Ostreidae; Animals; Arsenic; Arsenicals; Crassostrea; Environmental Monitoring; Food Contamination; Seafood; Taiwan; Water Pollutants, Chemical
Type
journal article
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