1. 1. Food and Agriculture Organization, The State of World Fisheries and Aquaculture (SOFIA)- 1998. 1998, http://www.fao.org/docrep/W9900E/W9900EOO.htm.
2. 2. Bamebe G, Barnabe-Quit R. Ecology and Management of Coastal Waters. The Aquatic Environment. Springer, Chichester. P. 396. 2000.
3. 3. Tatara K. General consideration and definitions: Biological aspects. In: T. Hirano (ed). Fishing Ground Capacity for Artificial Impacts. Koseisha Koseikaku, Tokyo. 1992; pp. 20-36.
4. 4. Ryther, JDH. Photosynthesis and fish production in the sea. Science, 1969, 166, 72-76.
5. 5. Chamberlin S, Marra J. Estimation of photosynthetic rate from measurements of natural fluorescence: analysis of the effects of light and temperature. Deep-Sea Res., 1992; 39: 1695-1706.