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<span style="font-size:15.0pt;mso-bidi-font-size: 14.0pt;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:Arial;mso-ansi-language:EN-GB;mso-fareast-language:EN-US; mso-bidi-language:HI;mso-bidi-font-weight:bold" lang="EN-GB">Tide dependent seasonal changes in water quality and assimilative capacity of anthropogenically influenced Mormugao harbour water</span>

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Title Tide dependent seasonal changes in water quality and assimilative capacity of anthropogenically influenced Mormugao harbour water
 
Creator Shirodkar, P. V.
Deepthi, M.
Vethamony, P.
Mesquita, Analia M.
Pradhan, U. K.
Babu, M. T.
Verlecar, X.N.
Haldankar, Sonali R.
 
Subject Mormugao harbour
Physico-chemical data
Factor analyses
Water quality index
Numerical modeling
 
Description 314-330
Water quality data from Mormugao harbour
area at the mouth of Zuari estuary in Goa have
been obtained over two tidal cycles monthly for the year 2003 to 2004. R-mode
factor analyses of the data indicated strong positive loadings of coliforms,
nitrogenous substances, PHc and some heavy metals during post-monsoon,
suggesting their dominance and significant increase relative to other seasons.
Water quality index (WQI) studies showed overall index of pollution (OIP)
values of 1.41 to 3.52, categorizing the harbour water as slightly polluted
during pre-monsoon. During post-monsoon, the OIP values of 1.75 to 5.4
categorized the harbour water as polluted water, while it was acceptable
quality water during the monsoon, with OIP values of 1.13 to 1.79. The higher
chlorophyll a (1.4-19 mgm–3 g/l) and primary productivity (4.8-14.8 mg/l) of the monsoon was
followed by that of the post-monsoon season, with the least during pre-monsoon.
Modeling studies using Ecolab module of MIKE 21 suggested slightly higher
assimilative capacity for harbour water during the pre-monsoon relative to post-monsoon,
which showed a reduction in assimilative capacity.


 
Date 2012-08-17T12:54:33Z
2012-08-17T12:54:33Z
2012-08
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/14551
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.41(4) [August 2012]