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摘要: The aquaculture of macroand micro-algae is a valuable global industry. Macroalgae are farmed for their hydrocolloids as well food (Abbott, 1996; Bixler, 1996), and microalgae cultured commercially use health source chemicals such betacarotene (Belay et al., 1994; Borowitzka, 1994). Microalgae also an important feed additive in the commercial rearing many aquatic animals, especially larvae spat bivalve molluscs, penaeid prawn live organisms rotifers which, turn, used to rear marine finfish crustaceans. importance algae not surprising natural these animals. Although several alternatives exist yeasts microencapsulated feeds (Jones 1987; Nell, 1993; Heras Nell still best preferred source. decline fish stocks catch from ‘wild’ fisheries recent years has lead ever increasing focus on aquaculture. increased illustrated by shrimp world supply 1925 103 t 1984 3080 1994, increase 60% (Ling 1997). bulk this was shrimp, which 420% same period total 921 1994 represents 29.9% harvest. With animal species there need suitable production This paper will review main problems constraints faced aquaculturalists algal consider advances being made improve Table 1. Microalgal commonly animals they usually fed.