Tolerance of tetraselmis tetrathele to high ammonium nitrogen and its effect on growth rate, carotenoid and fatty acids productivity by Abd. Wahab, Farahin, Ikhsan, Natrah, Nagao, Norio, Md. Yusoff, Fatimah, Shariff, Mohamed, Banerjee, Sanjoy, Katayama, Tomoyo, Nakakun, Masatoshi, Koyama, Mitsuhiko, Nakasaki, Kiyohiko, Toda, Tatsuki