TY - JOUR
T1 - Green oysters caused by copper pollution on the Taiwan coast
AU - Han, Bor Cheng
AU - Hung, Tsu Chang
N1 - Funding Information:
During March 1980-February 1983, our National Committee for SCOPE/ICSU, under the support of the Academia Sinica and the National 347 1990 Elsevier Science Publishers Ltd, England.
Funding Information:
We would like to thankD r W. L. Jeng and Mr Y. C. Lee of the Instituteo f OceanographyN,a tional Taiwan Universityf or critical review of the manuscripatn d statisticaal dvice,r espectivelyT.h is study was financially supportedb y National ScienceC ouncilgrant NSC-78-0421-B002a-02Z.
PY - 1990
Y1 - 1990
N2 - The first case of green oysters (Crassostrea gigas) broke out along the Charting mariculture area of south-western Taiwan in January 1986. The green color was found to be due to high copper content in the oyster tissue. Since then, a long-term survey around this area shows that total dissolved copper ranges from 4·99 to 23·6 μg/liter and particulate copper ranges from 1·09 to 5·51 μg/liter in sea-water. The green oysters collected from the Erhjin Chi estuary on 26 January, 1989 gave the highest copper content, 4401 ± 79 ppm dry wt. Other green oyster cases were occasionally observed in the Hsiangsan and Anpin mariculture areas. Meanwhile, an experiment of copper accumulation in oysters was conducted at three stations (south-western Taiwan) for up to 90 days. Multiple regression analysis indicates that the food pathway may predominate in copper accumulation by green oysters. This bioaccumulation experiment shows that the total uptake of copper per oyster is an exponential function of exposure time for the first 2 weeks with an accumulation rate of 214 ppm Cu/day and then levels off. The average values of concentration factors for oysters (about 5 × 105) were very close to steady-state values under the natural conditions at each station.
AB - The first case of green oysters (Crassostrea gigas) broke out along the Charting mariculture area of south-western Taiwan in January 1986. The green color was found to be due to high copper content in the oyster tissue. Since then, a long-term survey around this area shows that total dissolved copper ranges from 4·99 to 23·6 μg/liter and particulate copper ranges from 1·09 to 5·51 μg/liter in sea-water. The green oysters collected from the Erhjin Chi estuary on 26 January, 1989 gave the highest copper content, 4401 ± 79 ppm dry wt. Other green oyster cases were occasionally observed in the Hsiangsan and Anpin mariculture areas. Meanwhile, an experiment of copper accumulation in oysters was conducted at three stations (south-western Taiwan) for up to 90 days. Multiple regression analysis indicates that the food pathway may predominate in copper accumulation by green oysters. This bioaccumulation experiment shows that the total uptake of copper per oyster is an exponential function of exposure time for the first 2 weeks with an accumulation rate of 214 ppm Cu/day and then levels off. The average values of concentration factors for oysters (about 5 × 105) were very close to steady-state values under the natural conditions at each station.
UR - http://www.scopus.com/inward/record.url?scp=0024999493&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024999493&partnerID=8YFLogxK
U2 - 10.1016/0269-7491(90)90126-W
DO - 10.1016/0269-7491(90)90126-W
M3 - Article
C2 - 15092258
AN - SCOPUS:0024999493
SN - 0269-7491
VL - 65
SP - 347
EP - 362
JO - Environmental Pollution
JF - Environmental Pollution
IS - 4
ER -