ABASIEKONG, Beauty Omayeli; OSABOR, Vincent Ndem. Seasonal Effects on Nutrient and Bioactive Element Distributions in the Surface Sediments of Calabar River, Calabar, South-East Nigeria. Faculty of Natural and Applied Sciences Journal of Basic and Environmental Research, [S. l.], v. 2, n. 2, p. 69–79, 2025. Disponível em: https://fnasjournals.com/index.php/FNAS-JBER/article/view/712. Acesso em: 28 jun. 2025.