OBOT, O. I.; 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, [S. l.], v. 9, n. 2, p. 28–34, 2026. Disponível em: https://www.njaat.com.ng/index.php/jasd/article/view/1827. Acesso em: 4 oct. 2026.