Asian Journal of Biological Sciences1996-3351xxxx-xxxxScience International10.3923/ajbs.2019.328.336Afusat IbiwumiAmusat Kehinde Olajide KabirPopoola Akindayo AbiodunSowunmi 22019122Background and Objective: Seasonal variations of physicochemical properties exert a very serious influence on the occurrence and
abundance of both aquatic flora and fauna. Impact of physicochemical properties on benthic macro-invertebrates of Erelu reservoir
was investigated. Materials and Methods: Water and benthic samples were collected monthly from June, 2013 to May, 2015 from
7 stations. Temperature and transparency were determined in situ with mercury in glass thermometer and secchi disc. Other water
quality parameters were analyzed using standard methods, while benthic macro-invertebrates were collected using Van-veen grab of
66.6 cm2. Benthos identification was done with standard identification guide. Species diversity and abundance were examined using
Margalef, Shannon wiener and other indices. Data collected were analyzed using descriptive statistics and Pearsons correlation coefficient. Results: Turbidity, NO3, DO were higher in values in rainy season while transparency, temperature, BOD and EC values were high in dry
season. The EC, Temp. TDS and transparency had inverse correlation with all orders of benthic macro-invertebrates. Turbidity and
phosphate was significantly (p<0.05) related with Hygrophila (0.713) and Capitellida (0.942). The NO3 and TA had significant
inverse correlation with (Unionidea). Conclusion: Physical and chemical properties of Erelu reservoir had significant seasonal variations
and benthic macro-invertebrates abundance are independent of the physicochemical parameters excepts turbidity, phosphate and nitrate
that influenced the abundance of some orders of benthic macro-invertebrates.]]>Singh, S.P., D. Pathak and R. Singh,20028289292Djukic, N., S. Maletin, V. Pujin, A. Ivanc, K. Kojcic and B. Milajonovic,1994283740Sudhira, H.S. and V.S. Kumar,20002000pp: 110Adeyemo, O.K.,200323297306Newrkla, P. and A. Gunatilaka,198291531536Idowu, E.O. and A.A.A. Ugwumba,200531525Aura, C.M., P.O. Raburu and J. Herrmann,201133946Tagliapietra, D. and M. Sigovini,201088253261Rosenberg, D.M. and V.H. Resh,19931993pp: 1-9pp: 1-9Mitchell, M.K. and W.B. Stapp,199711th Edn.,pp: 1-5pp: 1-5Ajao, E.A. and S.O. Fagade,20021115Bonada, N., N. Prat, V.H. Resh and B. Statzner,200651495523Stanford, J.A. and J.V. Ward,19831983pp: 265-278pp: 265-278DeShon, J.E.,19951995pp: 217-243pp: 217-243Sarker, M.J., M.S.A. Patwary, A.M.M. Borhan Uddin, M.M. Hasan, M.H. Tanmay, I. Kanungo and M.R. Parvej,20162016Islam, M.S., M.N.A. Sikder, M. Al-Imran, M.B. Hossain, D. Mallick and M.M. Morshed,20132113661373Ishaq, F. and A. Khan,201419206216Popoola, K.O.K. and A. Otalekor,20113422428Boyd, C.E.,1982Pages: 318Pages: 318Ademoroti, C.M.A.,19961st Edn.,AOAC.,199616th Edn.,Thompson, F.G.,2004Pages: 96Pages: 96Pennak, R.W.,19782nd Edn.,Pages: 803Pages: 803Oscoz, J., D. Galicia and R. Miranda,2011pp: 1-30pp: 1-30Margalef, R.,19616124128Shannon, C.E. and W. Weaver,1949pp: 19-27, 82-83, 104-107pp: 19-27, 82-83, 104-107Pielou, E.C.,1975Pages: 165Pages: 165Hellawell, J.M.,19771973157Berger, W.H. and F.L. Parker,197016813451347Egborge, A.B.M.,1994Ugwumba, A.O. and A.A. Ugwumba,199312039Koloanda, R.J. and A.A. Oladimeji,20041999106Ayoade, A.A., S.O. Fagade and A.A. Adebisi,2006510131021Moody, F.O.,19911991Ibrahim, B.U., J. Auta and J.K. Balogun,200926469Anhwange, B.A., E.B. Agbaji and E.C. Gimba,20122248254Sahni, K. and S. Yadav,2012266164Akindele, E.O. and I.F. Adeniyi,20137192203Ayoola, S.O. and E.K. Ajani,20093107116Sachidanandamurthy, K.L. and H.N. Yajurvedi,200627615618Patil, J.V., A.P. Ekhande and G.S. Padate,201124456Agaoru, C.G.,20122012Mason, C.F.,19901990pp: 99-125pp: 99-125Ikomi, R.B., F.O. Arimoro and O.K. Odihirin,200536881Chakraborty, C., M. Mazaharul Huq, S. Ahmed, T. Tabassum and M.R. Miah,20132245252Idowu, E.O., A.A.A. Ugwumba, J.B. Edward and J.A. Oso,20133142148Atobatele, O.E., O.A. Morenikeji and O.A. Ugwumba,200535867Adeniyi, H.O.,19811981pp: 1517Offem, B.O., E.O. Ayotunde, G.U. Ikpi, S.N. Ochang and F.B. Ada,201113118Rahman, A., M.A. Zafor and S. Karim,20123715Aiwerioghene, A.N.O. and A.A. Adedolapo,20162010971103Ayoade, A.A. and A.O. Olusegun,201216201207Ishaq, F. and A. Khan,20133133144Akaahan, T.J.A., P.A. Araoye and F.M. Olabanji,20146271279Oloyede, O.O., B. Otarigho and O. Morenikeji,2017273543Yap, C.K., A.R. Ismail, M.Z. Azrina, A. Ismail and S.G. Tan,2006Limnodrilus sp.) at the polluted downstream of the tropical Langat River, Peninsular Malaysia.]]>10135140Omonijo, A.O., S.O. Asaolu and I.E. Ofoezie,201647784Garg, R.K., R.J. Rao and D.N. Saksena,20091202207Farombi, A.G., O.R. Adebayo, E.O. Olagunju and A.M. Oyekanmi,20148283288Mohan, V.C., K.K. Sharma, A. Sharma and P. Watts,201321724Olomukoro, J.O. and E.O. Oviojie,2015594100Furey, P.C., R.N. Nordin and A. Mazumder,2006251931Efitre, J., L.J. Chapman and B. Makanga,200136205216Korkeamaki, E. and J. Suhonen,200225459465Omitoyin, B.O. and E.K. Ajani,20072165170UNCTAD.,20022002pp: 37