AKANKALI , J. A; DAVIES, I. C.; OLALEYE, O. L. IMPACT OF ABATTOIR EFFLUENTS ON THE PHYSICOCHEMICAL PARAMETERS OF THE MIDDLE REACHES OF THE NEW CALABAR RIVER, NIGER DELTA . Nigerian Journal of Fisheries, [S. l.], v. 20, n. 2, p. 2654–2666, 2023. Disponível em: https://fisonjournal.org.ng/index.php/njf/article/view/77. Acesso em: 28 may. 2026.