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于2003年9月在大亚湾海域采集生物(鱼、虾、蟹和乌贼)样品,分析其多溴联苯醚(PBDEs)的浓度和脂含量,以及同位素δ15N与δ13C的值.结果表明,鱼、虾、蟹和乌贼的PBDEs总平均含量分别为5.43±3.97,1.18±0.67,3.37±2.33,5.66ng/g脂重.肉食性的鱼类PBDEs的生物累积比植食性的鱼类相对较高.BDE47为最优势组分,占总PBDEs的30%,且在所有样品中均被检出.生物体中PBDEs的含量与脂含量和δ15N值均呈正相关,脂含量对生物体富集PBDEs的影响远比生物所处的营养级的影响大.
Samples of fish (shrimp, crab and squid) were collected from the Daya Bay waters in September 2003 to analyze the concentrations and lipid contents of PBDEs, as well as the δ15N and δ13C values.The results showed that fish, shrimp and crab And squid PBDEs were 5.43 ± 3.97, 1.18 ± 0.67, 3.37 ± 2.33 and 5.66ng / g respectively.The bioaccumulation of carnivorous fish PBDEs was relatively higher than that of herbivorous fish.BDE47 was the most The dominant components, accounting for 30% of the total PBDEs, were detected in all the samples.The content of PBDEs in the organism was positively correlated with the lipid content and the δ15N value, and the lipid content had a far greater influence on the organism-enriched PBDEs than the organism At the trophic level where the impact.