Multivariate and geo-spatial approach for seawater quality of Chidiyatappu Bay, south Andaman Islands, India

Dilip Kumar Jha; Nambali Valsalan Vinithkumar; Biraja Kumar Sahu; Palaiya Sukumaran Dheenan; Apurba Kumar Das; Mehmuna Begum; Marimuthu Prashanthi Devi; Ramalingam Kirubagaran

doi:10.1016/j.marpolbul.2015.05.004

Multivariate and geo-spatial approach for seawater quality of Chidiyatappu Bay, south Andaman Islands, India

Dilip Kumar Jha^*
, Nambali Valsalan Vinithkumar
, Biraja Kumar Sahu
, Palaiya Sukumaran Dheenan
, Apurba Kumar Das
, Mehmuna Begum
, Marimuthu Prashanthi Devi
, Ramalingam Kirubagaran

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	463-470
Number of pages	8
Journal	Marine Pollution Bulletin
Volume	96
Issue number	1-2
DOIs	https://doi.org/10.1016/j.marpolbul.2015.05.004
State	Published - 15 Jul 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd.

Keywords

Chidiyatappu
GIS
Hot spot
Nutrients
Physico-chemical

ASJC Scopus subject areas

Oceanography
Aquatic Science
Pollution

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10.1016/j.marpolbul.2015.05.004

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@article{dec8416ae2184ff69285af27c91e41ff,

title = "Multivariate and geo-spatial approach for seawater quality of Chidiyatappu Bay, south Andaman Islands, India",

abstract = "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.",

keywords = "Chidiyatappu, GIS, Hot spot, Nutrients, Physico-chemical",

author = "Jha, \{Dilip Kumar\} and Vinithkumar, \{Nambali Valsalan\} and Sahu, \{Biraja Kumar\} and Dheenan, \{Palaiya Sukumaran\} and Das, \{Apurba Kumar\} and Mehmuna Begum and Devi, \{Marimuthu Prashanthi\} and Ramalingam Kirubagaran",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = jul,

day = "15",

doi = "10.1016/j.marpolbul.2015.05.004",

language = "English",

volume = "96",

pages = "463--470",

journal = "Marine Pollution Bulletin",

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TY - JOUR

T1 - Multivariate and geo-spatial approach for seawater quality of Chidiyatappu Bay, south Andaman Islands, India

AU - Jha, Dilip Kumar

AU - Vinithkumar, Nambali Valsalan

AU - Sahu, Biraja Kumar

AU - Dheenan, Palaiya Sukumaran

AU - Das, Apurba Kumar

AU - Begum, Mehmuna

AU - Devi, Marimuthu Prashanthi

AU - Kirubagaran, Ramalingam

PY - 2015/7/15

Y1 - 2015/7/15

N2 - 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.

AB - 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.

KW - Chidiyatappu

KW - GIS

KW - Hot spot

KW - Nutrients

KW - Physico-chemical

UR - https://www.scopus.com/pages/publications/84931576077

U2 - 10.1016/j.marpolbul.2015.05.004

DO - 10.1016/j.marpolbul.2015.05.004

M3 - Article

C2 - 25972234

AN - SCOPUS:84931576077

SN - 0025-326X

VL - 96

SP - 463

EP - 470

JO - Marine Pollution Bulletin

JF - Marine Pollution Bulletin

IS - 1-2

ER -

Multivariate and geo-spatial approach for seawater quality of Chidiyatappu Bay, south Andaman Islands, India

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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