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For a country it is of great advantage to have a coastline since it serves a gateway to the worldwide oceans. Nature has not bestowed this advantage on all countries of the world but has endowed the coastal areas of Pakistan with abundant of marine resources. Seaweeds, being benthic, are primary producer of coastal ecosystem. They are inhabitants of the neritic zone in the marine hydrosphere, as majority of herbivores feed on them. They may serve as good source of food to mankind, animals and also as natural fertilizer for farm and agricultural land. Seaweeds have been used for...