The primary study on a digestive system of whitespotted bambooshark, Chiloscyllium plagiosum
条纹斑竹鲨消化系统的初步研究

The bioaccumulation and biomagnification of four kinds of phathalate esters in the food chain composed of Gracilaria lemaneiformis and Siganus oramin were investigated under man-made microcosmos condition.The results showed that the rank of bioaccumulation for four PAEs in G.lemaneiformis was as follows: DEHP >DBP>DEP>DMP.DEHP exhibited an increasing trend with the extend of exposure time and was 2.35 mg/kg during a 30 d exposure period,no obvious change was observed for DMP in the same exposure period.The total contents of four kinds of phathalate esters in S.oramin were 0.08,0.41,1.72,3.11 mg/kg,respectively.Therewere higher contents in fish viscera for DBP(1.14 mg/kg) and DEHP(1.83 mg/kg).There existed bioaccumulation to some extent in G.lemaneiformis and S.oramin for DEHP and DBP with 9.16 and 5.68 FBC values in fish viscera.Biomangnification phenomenon was observed in fish viscera tissue in the food chain composed of G.lemaneiformis and S.oramin.