TY - JOUR
T1 - Trophodynamics and parabolic behaviors of polycyclic aromatic hydrocarbons in an urbanized lake food web, Shanghai
AU - Qadeer, Abdul
AU - Liu, Min
AU - Yang, Jing
AU - Liu, Xinran
AU - Khalil, Saira Khan
AU - Huang, Yanping
AU - Habibullah-Al-Mamun, Md
AU - Gao, Dengzhou
AU - Yang, Yi
N1 - Publisher Copyright:
© 2019 Elsevier Inc.
PY - 2019/8/30
Y1 - 2019/8/30
N2 - Understanding the trophic movement and trophic magnification factor (TMF) of polycyclic aromatic hydrocarbons (PAHs) is an important criterion to assess their fate and potential effects in an aquatic ecosystem. This study investigated concentrations and trophodynamics of 16 priority PAHs in food web wb (food web comprising whole bodies) and food web m (food web containing only muscles) of total 14 species ((including plankton, shrimp, whitebait, mussels, snails, red-eared terrapin and seven other fish species) from the Dianshan Lake. Values of δ 13 C and δ 15 N were determined to assign trophic levels to organisms. In general, there was no evidence of biomagnification because of biological degradation of PAHs compounds, but only 9 PAH compounds in food web m showed a statistically significant negative relationship between trophic level and lipid normalized concentration compared to the 6 PAHs congeners in food web wb . However, TMF values of PAHs in food web m ranged from 0.32 for pyrene to 0.68 for phenanthrene compared to TMF values of food web wb ranged from 0.34 for pyrene to 0.74 for fluorene. Because of two opposing scientific views for biomagnification and biodilution of PAHs in the food web, albeit based on a rather limited number of studies, our study investigated that there is parabolic behavior of most of the PAHs. Concentrations of PAHs in the red-eared terrapin (Trachemys scripta elegans) were biodiluted which showed that this species metabolises such compounds. There was no particular relationship between K ow and TMFs of PAHs in the Dianshan Lake. Hepatobiliary system (such as gall bladder and liver) in the whole body considered to have higher bioaccumulation potential of organic compounds than extrahepatic tissue (muscles).
AB - Understanding the trophic movement and trophic magnification factor (TMF) of polycyclic aromatic hydrocarbons (PAHs) is an important criterion to assess their fate and potential effects in an aquatic ecosystem. This study investigated concentrations and trophodynamics of 16 priority PAHs in food web wb (food web comprising whole bodies) and food web m (food web containing only muscles) of total 14 species ((including plankton, shrimp, whitebait, mussels, snails, red-eared terrapin and seven other fish species) from the Dianshan Lake. Values of δ 13 C and δ 15 N were determined to assign trophic levels to organisms. In general, there was no evidence of biomagnification because of biological degradation of PAHs compounds, but only 9 PAH compounds in food web m showed a statistically significant negative relationship between trophic level and lipid normalized concentration compared to the 6 PAHs congeners in food web wb . However, TMF values of PAHs in food web m ranged from 0.32 for pyrene to 0.68 for phenanthrene compared to TMF values of food web wb ranged from 0.34 for pyrene to 0.74 for fluorene. Because of two opposing scientific views for biomagnification and biodilution of PAHs in the food web, albeit based on a rather limited number of studies, our study investigated that there is parabolic behavior of most of the PAHs. Concentrations of PAHs in the red-eared terrapin (Trachemys scripta elegans) were biodiluted which showed that this species metabolises such compounds. There was no particular relationship between K ow and TMFs of PAHs in the Dianshan Lake. Hepatobiliary system (such as gall bladder and liver) in the whole body considered to have higher bioaccumulation potential of organic compounds than extrahepatic tissue (muscles).
KW - Food web
KW - PAHs
KW - Tidal freshwater lake
KW - Trophic magnification factors
UR - https://www.scopus.com/pages/publications/85064091825
U2 - 10.1016/j.ecoenv.2019.04.003
DO - 10.1016/j.ecoenv.2019.04.003
M3 - 文章
C2 - 30986628
AN - SCOPUS:85064091825
SN - 0147-6513
VL - 178
SP - 17
EP - 24
JO - Ecotoxicology and Environmental Safety
JF - Ecotoxicology and Environmental Safety
ER -
