TY - JOUR
T1 - Effect of tributyltin on veliger larvae of the Manila clam, Ruditapes philippinarum
AU - Inoue, Suguru
AU - Oshima, Yuji
AU - Usuki, Hironori
AU - Hamaguchi, Masami
AU - Hanamura, Yukio
AU - Kai, Norihisa
AU - Shimasaki, Yohei
AU - Honjo, Tsuneo
N1 - Funding Information:
This study was partly supported by a grant from the Ministry of Education, Culture, Sports, Science and Technology, Japan (no. 14360112). We thank the staff of the National Research Institute of Fisheries and Environment of Inland Sea and also Mr. Jumpei Arakawa of the Aichi Fisheries Research Institute for their help with our experiment.
PY - 2007/1
Y1 - 2007/1
N2 - We investigated the effects of waterborne and maternal exposure to tributyltin (TBT) on veliger larvae of the Manila clam, Ruditapes philippinarum. In a waterborne exposure test, veliger larvae (D-larvae stage: 24 h after fertilization) were exposed to TBT at measured concentrations of <0.01 (control), 0.055, 0.130, 0.340, and 0.600 μg/l for 13 d. The percentage of normal veliger larvae (the ratio of normal veliger larvae to all larvae) decreased significantly in all TBT treatment groups compared with that in the control group. In a maternal exposure test, 100 clams were exposed to TBT at measured concentrations of <0.01 (control), 0.061, and 0.310 μg/l at 20-22 °C for 3 weeks, and the percentage of normal veliger larvae assessed for 13 d. No maternal effects on veliger larvae from TBT were observed in TBT treatment groups as compared with the control group. These results demonstrate that waterborne TBT affects Manila clam veliger larvae, and indicates that TBT may have reduced Manila clam populations by preventing the development and survival of veliger larvae.
AB - We investigated the effects of waterborne and maternal exposure to tributyltin (TBT) on veliger larvae of the Manila clam, Ruditapes philippinarum. In a waterborne exposure test, veliger larvae (D-larvae stage: 24 h after fertilization) were exposed to TBT at measured concentrations of <0.01 (control), 0.055, 0.130, 0.340, and 0.600 μg/l for 13 d. The percentage of normal veliger larvae (the ratio of normal veliger larvae to all larvae) decreased significantly in all TBT treatment groups compared with that in the control group. In a maternal exposure test, 100 clams were exposed to TBT at measured concentrations of <0.01 (control), 0.061, and 0.310 μg/l at 20-22 °C for 3 weeks, and the percentage of normal veliger larvae assessed for 13 d. No maternal effects on veliger larvae from TBT were observed in TBT treatment groups as compared with the control group. These results demonstrate that waterborne TBT affects Manila clam veliger larvae, and indicates that TBT may have reduced Manila clam populations by preventing the development and survival of veliger larvae.
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U2 - 10.1016/j.chemosphere.2006.06.052
DO - 10.1016/j.chemosphere.2006.06.052
M3 - Article
C2 - 16890269
AN - SCOPUS:33845223928
SN - 0045-6535
VL - 66
SP - 1353
EP - 1357
JO - Chemosphere
JF - Chemosphere
IS - 7
ER -
