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Characterization of Porteresia coarctata beds along the Goa coast, India

DRS at CSIR-National Institute of Oceanography

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Title Characterization of Porteresia coarctata beds along the Goa coast, India
 
Creator Jagtap, T.G.
Bhosale, S.H.
Charulata, S.
 
Subject aquatic plants
wetlands
mangrove swamps
estuaries
coastal zone management
nitrates
nitrites
growth
temporal variations
spatial variations
Porteresia coarctata
 
Description Porteresia coarctata, forms an important constituent in the plant succession leading to formation of mangrove communities along the estuaries in India. Major beds along the Mandovi estuary of Goa were monitored for their various ecological and environmental parameters. Nitrate and nitrite values in the over lying waters of beds varied from 0.12 to 1 Mu g at NO2 -N L sup(-1) and 1.2 to 6.7 Mu g at NO3-N L sup(-1), while salinity values were in the range of 0-36%, and gradually increased from August to September reaching its maximum during the month of April-May. The biomass values ranged from 39.3 plus or minus 5.6 to 145.2 plus or minus 32.2 g dry weight m sup(-2). Biomass and growth were negatively correlated (r = 0.53-0.80) with salinity while the same were positively correlated with nitrite (r = 0.73-0.87) and nitrate (r = 0.63-0.80) from the surface water. The growth of P. coarctata mainly continued by tiller formation. The density of seed producing shoots varied from 1 to 3 m sup(-2). The major vegetative characters of Porteresia indicated significant spatial and temporal variations. Sediments from the beds were rich in organic carbon (1.5-7.9%) and organic nitrogen (0.1-2.3%).
 
Date 2008-02-12T04:50:52Z
2008-02-12T04:50:52Z
2006
 
Type Journal Article
 
Identifier Aquatic botany, Vol.84; 37-44p.
http://drs.nio.org/drs/handle/2264/850
 
Language en
 
Rights Copyright [2006]. It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice by copyright holder that the rights are voilated then the item would be withdrawn.
 
Publisher Elsevier