PMID- 27456696 OWN - NLM STAT- MEDLINE DCOM- 20161229 LR - 20181202 IS - 1573-2959 (Electronic) IS - 0167-6369 (Linking) VI - 188 IP - 8 DP - 2016 Aug TI - PCBs in fish and their cestode parasites in Lake Victoria. PG - 483 LID - 10.1007/s10661-016-5483-0 [doi] AB - Polychlorinated biphenyls (PCBs) are classified as persistent organic pollutants (POPs) regulated by the Stockholm Convention (2001). Although their production and use was stopped almost three decades ago, PCBs are environmental persistent, toxic, and bioaccumulate in biota. We assessed the levels of 7 PCB congeners (IUPAC nos. 28, 52, 101, 118, 138, 153, and 180) in sediment and fish (Oreochromis niloticus, Lates niloticus, and Rastrineobola argentea) and evaluated the potential of cestode fish endoparasite (Monobothrioides sp., Proteocephalaus sp., and Ligula intestinalis) as biomonitors of PCBs in Lake Victoria, Kenya. The median concentration of Sigma7PCBs in sediments and fish were 2.2-96.3 mug/kg dw and 300-3,000 mug/kg lw, respectively. At all the sampling sites, CB138, CB153, and CB180 were the dominant PCB congeners in sediment and fish samples. Compared to the muscle of the piscine host, Proteocephalaus sp. (infecting L. niloticus) biomagnified PCBs x6-14 while Monobothrioides sp. (infecting O. niloticus) biomagnified PCBs x4-8. Meanwhile, L. intestinalis (infecting R. argentea) biomagnified PCBs x8-16 compared to the muscle of unparasitized fish. We demonstrate the occurrence of moderate to high levels of PCB in sediments and fish in Lake Victoria. We also provide evidence that fish parasites bioaccumulate higher levels of PCBs than their piscine hosts and therefore provide a promising biomonitor of PCBs. We urge further a long-term study to validate the use of the above cestode fish parasites as biomonitoring tools for PCBs. FAU - Oluoch-Otiego, John AU - Oluoch-Otiego J AD - Division of Environmental Health, School of Environmental Studies, University of Eldoret, P.O. Box 1125, Eldoret, Kenya. FAU - Oyoo-Okoth, Elijah AU - Oyoo-Okoth E AD - School of Natural Resources and Environmental Studies, Department of Natural Resource, Karatina University, P.O. Box 1957-10101, Karatina, Kenya. elijaoyoo2009@gmail.com. FAU - Kiptoo, Kipkorir Koross Godfrey AU - Kiptoo KK AD - Division of Environmental Health, School of Environmental Studies, University of Eldoret, P.O. Box 1125, Eldoret, Kenya. FAU - Chemoiwa, Emily J AU - Chemoiwa EJ AD - Department of Biological Sciences, University of Eldoret, P.O. Box 1125, Eldoret, Kenya. FAU - Ngugi, Charles C AU - Ngugi CC AD - Department of Agricultural Resource Management, Kenyatta University, School of Agriculture and Enterprise Development, P.O. Box 43844-00100, Nairobi, Kenya. FAU - Simiyu, Gelas AU - Simiyu G AD - Division of Environmental Health, School of Environmental Studies, University of Eldoret, P.O. Box 1125, Eldoret, Kenya. FAU - Omutange, Elijah S AU - Omutange ES AD - Department of Technology Education, Moi University, Eldoret, Kenya, P.O. Box 1125, Eldoret, Kenya. FAU - Ngure, Veronica AU - Ngure V AD - Department of Biological Sciences, Laikipia University, Nyahururu, P.O. Box 1100-20300, Kenya. FAU - Opiyo, Mary A AU - Opiyo MA AD - Kenya Marine and Fisheries Research Institute, National Aquaculture Research Development and Training Center, P.O. Box 451-10230, Sagana, Kenya. LA - eng PT - Journal Article DEP - 20160725 PL - Netherlands TA - Environ Monit Assess JT - Environmental monitoring and assessment JID - 8508350 RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Animals MH - Cestoda/*chemistry/growth & development/metabolism MH - Cyprinidae/metabolism/*parasitology MH - Environmental Monitoring/*methods MH - Kenya MH - Lakes/*chemistry MH - Polychlorinated Biphenyls/*analysis OTO - NOTNLM OT - Bioaccumulation OT - Biomagnification OT - Lake Victoria OT - Lipid content OT - PCBs OT - Parasite EDAT- 2016/07/28 06:00 MHDA- 2016/12/31 06:00 CRDT- 2016/07/27 06:00 PHST- 2016/01/10 00:00 [received] PHST- 2016/07/13 00:00 [accepted] PHST- 2016/07/27 06:00 [entrez] PHST- 2016/07/28 06:00 [pubmed] PHST- 2016/12/31 06:00 [medline] AID - 10.1007/s10661-016-5483-0 [pii] AID - 10.1007/s10661-016-5483-0 [doi] PST - ppublish SO - Environ Monit Assess. 2016 Aug;188(8):483. doi: 10.1007/s10661-016-5483-0. Epub 2016 Jul 25.