Abstract
The growth of Ulva fasciata and Codium dwarkense was least near the chlor-alkali industry outfall. Maximum growth of Ulva was furthest away from the outfall and of Codium at intermediate distances. Ash and Hg contents of these species were maximum while Fe was low or least near discharge point. The quantity of protein, carbohydrate, chlorophyll a, carotenoids in Ulva and protein, lipid and carotenoids in Codium were least near outfall. It seems the metabolism of C and N of these species are inhibited by the discharge. These species can be used as food, as nutritively important constituents are in required quantity and Hg content is much below the maximum permissible limit for human consumption. A direct method of measurement of growth and productivity of seaweeds rather than indirect method (chlorophyll a, etc.) is advisable under the conditions of such pollution.
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