Klaus W. G. Rotmann

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Since World War II the greater Saldanha Bay lagoon system, South Africa, has been an important Gracilaria producer. Two agar factories, built in the 1960's, used Gracilaria from Saldanha Bay as their raw material. In the early 1970's the industry was destroyed as a result of dredging and marine construction operations to establish a harbor in the bay for(More)
Luideritz is situated on the southwest coast of Africa, about 15 ° longitude and 27 ° latitude, on the Atlantic coast of the Namib Desert (Fig. 1). The red seaweed Gracilaria verrucosa (Simons, 1976) grows in the areas known as Liideritz Harbour and Robert Harbour two sandy lagoons in a larger bay system. These seaweeds have been collected in a very(More)
Agar has, with the exception of certain retail markets in the Far East, specifically Japan, traditionally been sold to the industrial user. Small quantities are consumed in Islamic countries during Ramadan and in the Germanic countries as a food thickener and a laxative. However, outside of Japan, no significant marketing effort has ever been undertaken(More)
The southern Cape area extends from the southernmost point of Africa, Cape Agulhas, to False Bay, just east of Cape Town. Large kelp beds (mainly Ecklonia maxima) occur on the rocky coastline. Algal utilization, which started during World War II, is currently based on the collection of natural casts, as well as a limited amount of harvesting, and offers(More)
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