Open Access Research Paper Views (880) Assessment of the levels of some heavy metals in mudfish (Clarias anguillaris) from River Okpokwu, Apa, Benue State, Nigeria J. Abah, S.T. Ubwa, D.I. Onyejefu, S.A. Nomor Int. J. Biosci. 3(4), 142-150, April 2013. DOI: http://dx.doi.org/10.12692/ijb/3.4.142-150 Keywords: Agrochemicals, Clarias anguillaris, heavy metals, River, Sediment Details