Jha D.K.,Ocean Science and Technology for Islands |
Jha D.K.,Earth System science Organisation ESSO National Institute of Ocean Technology NIOT |
Vinithkumar N.V.,Earth System science Organisation ESSO National Institute of Ocean Technology NIOT |
Sahu B.K.,Berhampur University |
And 5 more authors.
Marine Pollution Bulletin | Year: 2015
Chidiyatappu Bay is one of the least disturbed marine environments of Andaman & Nicobar Islands, the union territory of India. Oceanic flushing from southeast and northwest direction is prevalent in this bay. Further, anthropogenic activity is minimal in the adjoining environment. Considering the pristine nature of this bay, seawater samples collected from 12 sampling stations covering three seasons were analyzed. Principal Component Analysis (PCA) revealed 69.9% of total variance and exhibited strong factor loading for nitrite, chlorophyll a and phaeophytin. In addition, analysis of variance (ANOVA-one way), regression analysis, box-whisker plots and Geographical Information System based hot spot analysis further simplified and supported multivariate results. The results obtained are important to establish reference conditions for comparative study with other similar ecosystems in the region. © 2015 Elsevier Ltd.