“Seasonal Assessment of (Escherichia Coli) Contamination Resulting from Untreated Wastewater in Marine Ecosystems of Al-Mukalla and Broom Mayfa, Hadhramout, Yemen ”. Hadhramout University Journal of Natural & Applied Sciences, vol. 23, no. 1, Sept. 2026, https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/979.