Titlebook: International Workshop on Gelidium; Proceedings of the I J. A. Juanes,B. Santelices,J. L. McLachlan Conference proceedings 1991 Springer Sc

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, in South Africa,ults show that harvesting has no significant biological effect. Regulations governing seaweed exploitation in South Africa were amended in 1988, to encourage local processing of products, and these changes are discussed in relation to the local . industry. Despite experimental results predicting a h

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f this kind of information has given rise to a substantial amount of empirical research conducted on the trading mechanisms, the intraday characteristics of the markets (liquidity, volatility), and the price formation process. While intraday databases provide researchers with a substantial amount of