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Title: Community structure of net phytoplankton along surf zone of Mangalore during southwest monsoon season
Authors: Raveesha, K. P
Mohan, A
Chethan, N
Katti, R. J
Reddy, H.R.V
Issue Date: Sep-2010
Publisher: NISCAIR-CSIR, India
Abstract: Data collected from surf waters of Mangalore revealed the time scale variation of hydrographical parameters and phytoplankton community. Salinity and plant nutrients specially nitrate and silicate exhibited a conspicuous fluctuation in relation to intensity of precipitation. Surf water was characterized with much higher levels of limiting nutrients than the Redfield ratio. Diatoms dominated numerically among phytoplankton in the surf waters followed by dinoflagellates and blue green algae. Lower salinity associated with high load of nutrients favored the growth of bloom forming centric types of diatoms. While diverse forms of diatoms, dinoflagellates and blue green algae occurred with increasing salinity in surf waters. Shannon’s species diversity varied from 0.049 to 2.125 and Shannon’s evenness index varied from 0.020 to 0.735. Diversity indices indicated gradual increase in diversity and evenness values in relation to variation of salinity and nutrients
Page(s): 445-448
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.39(3) [September 2010]

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