IJFSNPHT 2017 Volume 9 Issue 3

International Journal of Food Safety, Nutrition, Public Health and Technology (IJFSNPHT) ISSN: 0975 – 8712

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Occurrence of Pesticides Residues in soft tissue of Buccinum undatum and Littorina littorea from Brackish water and intertidal zone of the lower Atlantic ocean.  IKPESU, THOMAS OHWOFASA AND  OGBOMIDA EMMANUEL TEMIOTAN.  IJFSNPHT (2017), 9(3):20-27

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Title:

Occurrence of Pesticides Residues in soft tissue of Buccinum undatum and Littorina littorea from Brackish water and intertidal zone of the lower Atlantic ocean

Authors & Affiliation:
IKPESU, THOMAS OHWOFASA1 AND  OGBOMIDA EMMANUEL TEMIOTAN2
1 Department of Biology Federal University Otuoke, Nigeria
2 National Center for Energy and Environment, Energy Commission of Nigeria
ikpesuto@fuotuoke.edu.ng, ogbomida.e@ncee.org.ng

Abstract:
The occurrence of pesticides residue in Buccinum undatum and Littorina littorea, the benthic filter feeders at the brackish water of the Ikebiri River and at the intertidal zone of the lower Atlantic Ocean were analyzed. The samples were collected from three stations, two stations along the River (Ngbokolo and Obomikorogbene), and the third (Ebidoughene) experiences occasional Oceanic tides. The samples were collected between January – December, 2016 and a total of sixty samples of each of the specimen were analyzed using high performance liquid chromatography (HPLC model CECIL 1010) to elucidate its concentrations in these gastropods.The concentrations of the pesticide in the matrices ranged between;17.20 – 0.40 μg/gdw (B. undatum) and 0.20 – 12.50 μg/gdw (L. littorea). The order of concentrations of the pesticides in the gastropods were; in B.undatum: Glyphosate formulation > Diazinon > Paraquat dichloride > Chloropyrifos, while in L. littorea: Paraquat dichloride > Glyphosate formulation > Diazinon > Chloropyrifos. Seasonal variation showed that the pesticides concentrations were higher during the dry season than the wet season. Spatial distribution revealed that Ebidoughene > Ngbokolo > Obomikorogbene, an indication that the intertidal zone of the lower Atlantic Ocean had the highest concentration in all the stations examined. The concentrations of the pesticides reported in this investigation were higher than the recommendation limit. The persistent pesticides represent long-term dangers as they bio-magnify up the food-chain and humans are at the top of the food-chain. If the pesticide levels found in water were within the standards set by various regulatory bodies, they are still accounted for a low to high ecotoxicological risk for aquatic organisms, especially algae and macro-invertebrates. Proper measures should be taken while using pesticides, so that their discharge into the water bodies does not endanger aquatic life.
Key words: Buccinum undatum,Littorina littorea, Brackish water, Ikebiri River,Atlantic Ocean,Pesticides


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Prof. Dr. Prabhu Britto Albert,
Apr 26, 2017, 4:05 AM
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Prof. Dr. Prabhu Britto Albert,
Apr 26, 2017, 4:06 AM