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Evaluation of surface water and sediment quality in Chicalim Bay, Nerul Creek, and Chapora Bay from Goa coast, India - a statistical approach

DRS at CSIR-National Institute of Oceanography

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Title Evaluation of surface water and sediment quality in Chicalim Bay, Nerul Creek, and Chapora Bay from Goa coast, India - a statistical approach
 
Creator Shenai-Tirodkar, P.S.
Gauns, M.U.
Ansari, Z.A.
 
Subject CHEMISTRY AND BIOGEOCHEMISTRY
GEOLOGY AND GEOPHYSICS
CHEMISTRY AND BIOGEOCHEMISTRY
CHEMISTRY AND BIOGEOCHEMISTRY
AQUATIC POLLUTION
AQUATIC ECOLOGY, PRODUCTIVITY
 
Description To better understand the spatial and temporal variation in surface water and sediment quality, parameters were evaluated from the three sites Chicalim Bay (CB), Nerul Creek (NC), and Chapora Bay (ChB) along the Goa coast, which has major oyster beds. Multivariate analysis such as cluster analysis (CA), Box-Whisker plot (Box plot), and principle component analysis (PCA) revealed that nitrate (NO3-N), nitrite (NO2-N), phosphate (PO4P), particulate organic carbon (POC), total suspended solids (TSS), dissolved oxygen (DO), and phaeopigments are the responsible parameters for spatio-temporal variability among the studied sites. Results showed an elevated level of ecotoxicological hazard at CB while moderate toxicological risks were observed for organisms at NC. In contrast, ChB was considerably pristine compared with other two sampling sites. Results of present study showed marked dominance of nutrients, phaeopigments, POC, and TSS at CB and NC. The increased levels of these parameters are attributed to the anthropogenic activities which may cause potential risk to humans via consumption of oysters. Therefore, we suggest monitoring heavy metal concentrations in tissue of commercially important oyster species, and their ambient environment (water and sediment) from these estuaries is necessary to create a comprehensive pollution database
 
Date 2016-08-19T12:15:01Z
2016-08-19T12:15:01Z
2016
 
Type Journal Article
 
Identifier Environmental Monitoring and Assessment, vol.188; 2016; no.472 doi:10.1007/s10661-016-5445-6
no
http://drs.nio.org/drs/handle/2264/5003
 
Language en
 
Relation Environ_Monit_Assess_188_472.jpg
 
Rights An edited version of this paper was published by Springer. This paper is for R & D purpose and Copyright [2016] Springer.
 
Publisher Springer