Obot, O. I., and Afia, O. E. “EFFECTS OF SAND DREDGING ON PHYTOPLANKTON DIVERSITY AND TROPHIC STRUCTURE OF THE OBIOKPOK NSIT RIVER, NIGER DELTA, NIGERIA”. Journal of Agripreneurship and Sustainable Development 9, no. 2 (October 4, 2026): 28–34. Accessed October 4, 2026. https://www.njaat.com.ng/index.php/jasd/article/view/1827.