Seasonality in growth, reproduction and spore liberation of Porphyra vietnamensis Tanaka et Ho (Rhodophyta, Bangliales)

G.M.N. Rao


Porphyra vietnamensis Tanaka et Ho occurs in the intertidal region of the Visakhapatnam Coast (Andhra Pradesh, India) from November to August. Data were collected at monthly interval on seasonal changes in growth, biomass and fruiting behaviour of this alga for a period of two years from November 1984 to August 1986. Maximum growth and biomass were observed in February and March in 1985 and 1986. Maximum liberation of monospores and carpospores was observed in the months of February and March respectively


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