Accumulation of organotins in wharf roach (Ligia exotica Roux) and its ability to serve as a biomonitoring species for coastal pollution

作者：Undap Suzanne Lydia; Matsunaga Satoshi; Honda Masato; Sekiguchi Toshio; Suzuki Nobuo; Khalil Fatma; Qiu Xuchun; Shimasaki Yohei; Ando Hironori; Sato Okoshi Waka; Sunobe Tomoki; Takeda Satoshi; Munehara Hiroyuki; Oshima Yuji^*

来源：Ecotoxicology and Environmental Safety, 2013, 96: 75-79.

DOI：10.1016/j.ecoenv.2013.06.019

• Tributyltin
• Wharf roach
• Accumulation
• Biomonitoring
• Coastal environments

In this study, we measured the accumulation of tributyltin (TBT) in wharf roach (Ligia exotica Roux) and examined the species%26apos; ability to be used for TBT biomonitoring in coastal environments. In an exposure test, wharf roach were exposed to TBT via diet for 2 d. TBT was accumulated in wharf roach, and its metabolite dibutyltin was detected. The concentrations of these compounds gradually decreased during the deputation period, but they were still detected 12 d after exposure ceased (TBT 290 +/- 140 ng/g; dibutyltin 1280 +/- 430 ng/g). The biological half-life of TBT in wharf roach was estimated to be about 4 d. In a field study conducted in 2011-2012, wharf roach were collected from 15 coastal sites in Japan and 3 sites in Manado, Indonesia. TBT was detected in both Japanese and Indonesian samples. The highest concentration of TBT was found in wharf roach collected at Bitung ferry port, Manado (57.9 +/- 16.5 ng/g), which is close to a shipyard, and the highest concentration at a Japanese site was 12.3 +/- 6.2 ng/g. Thus, we were able to detect organotins in the coastal environments by testing wharf roach, suggesting that L. exotica might serve as a good bioindicator for monitoring organotin pollution.

• 出版日期2013-10-1