SHAHEEN KOUSAR; MUHAMMAD NAEEM; ABIR ISHTIAQ; SHOAIB HASSAN; AMMAR DANYAL NAEEM. Effect of body size on the concentration of two essential macro elements (Calcium and Magnesium) in wild Eutropiichthys vacha from Indus River, Taunsa Barrage, Pakistan. Sindh University Research Journal - SURJ (Science Series), v. 53, n. 04, 20 Dec. 2021.