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IJMS Vol.38(4) [December 2009] >


Title: Effect of salinity and dissolved nutrients on the occurrence of some seaweeds in Manakkudy estuary
Authors: Jansi, M.
Ramadhas, V.
Keywords: Salimiton
biomass
nutrient
coast seaweed
Issue Date: Dec-2009
Publisher: CSIR
Abstract: Manakkudy estuary, located on the South-West coast of India has production of seaweeds to an amount of 15.59 kg/m2/yr. Four different types of seaweeds viz., Chaetomorpha aerea, Enteromorpha compressa, Gracilaria verrucosa and Hypnea musciformis were observed in this estuary. Highest production of biomass (C. aerea = 842.33± 32.21 g/m2; E. compressa = 619±16.09 g/m2; G. verrucosa = 563.33±13.32 g/m2 and H. musciformis = 225.67±10.79 g/m2) of seaweeds could be recorded in May. During November i.e., a period of peak monsoon rain it is not present. Sea weeds were observed to occur in the euryhaline salinity range of 11.15 ± 0.48 to 27.18±0.88 ppt and the temperature ranging between 23.57°±1.00 and 31.70 ± 0.82°C. The quantity of seaweed is more when levels of nutrients were moderately high.
Page(s): 470-473
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Source:IJMS Vol.38(4) [December 2009]

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