EEFECT GROWTH HORMONE AND GAMMA-AMINOBUTYRIC ACID ON BRACHIONUS PLICATILIS (ROTIFERA) REPRODUCTION AT LOW FOOD OR HIGH AMMONIA LEVELS

W.G. Gallardo, A. Hagiwara, Y. Tomita, K. Soyano, T.W. Snell

(Graduate School of Marine Science and Engineering, Nagasaki University, Bunkyo 1-14, Nagasaki 852-8131, Japan)

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