Open Access Research Paper Views (873) Trends in macrobenthal biotypes of Imo River in a Nigerian Delta region Dike Henry Ogbuagu, John Didacus Njoku, Adedolapo Abeke Ayoade J. Biodiv. & Environ. Sci. 1(4), 22-28, August 2011. Keywords: Entomofauna, Macrobenthos, Sand mining, Species diversity Details