气候变化领域集成服务门户(CCPortal): Ecological health assessment of a coastal ecosystem: Case study of the largest brackish water lagoon of Asia

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DOI	10.1016/j.marpolbul.2018.11.056
	Ecological health assessment of a coastal ecosystem: Case study of the largest brackish water lagoon of Asia
	Barik S.K.; Bramha S.; Behera D.; Bastia T.K.; Cooper G.; Rath P.
发表日期	2019
ISSN	0025326X
起始页码	352
结束页码	363
卷号	138
英文摘要	This study focuses on the ecological health assessment of Chilika, a shallow lagoon present in east coast of India, through nutrient stoichiometry and trophic state index (TSI). Multivariate statistical analysis such as ANOVA, Pearson's correlation, Principal Component Analysis (PCA), and Discriminant Analysis (DA) were employed for data interpretation. Nutrient stoichiometry revealed that the Chilika Lagoon experiences phosphorus limitation with regard to nitrogen and silicate (N:P:Si = 16:1:16) throughout the study period. As per the computed TSI values, the southern sector (SS), central sector (CS), and outer channel (OC) were assigned with a mesotrophic status, whereas the northern sector (NS) was assigned with the eutrophic status. From PCA, total nitrogen was found to be negatively correlated with salinity and positively correlated with silicate, thus indicating that the major source of nitrogen in the lagoon was freshwater ingress by rivers with high silicate content. DA indicated that it was successful in discriminating the groups as predicted. © 2018 Elsevier Ltd
英文关键词	Discriminant analysis; Nutrient ratio; Principal component analysis; Trophic state index
语种	英语
scopus关键词	Correlation methods; Discriminant analysis; Ecosystems; Lakes; Nutrients; Principal component analysis; Silicates; Stoichiometry; Coastal ecosystems; Data interpretation; East coast of india; Ecological health; Eutrophic status; Multivariate statistical analysis; Phosphorus limitation; Trophic state; Multivariant analysis; ammonia; brackish water; iron; nitrate; nitrogen; phosphate; phosphorus; silicate; fresh water; nitrogen; salt water; silicate; brackish water; coastal zone; ecosystem health; environmental assessment; lagoon; nitrogen; nutrient; trophic structure; Article; Asia; biochemical oxygen demand; chemical composition; chemical oxygen demand; coastal waters; correlation analysis; discriminant analysis; ecosystem health; ecosystem monitoring; evolutionary adaptation; India; lagoon; nonhuman; pH measurement; photosynthesis; physical chemistry; principal component analysis; salinity; seasonal variation; soil analysis; soil microflora; turbidity; water quality; analysis; chemistry; ecology; ecosystem; multivariate analysis; season; Chilka Lake; India; Odisha; Discriminant Analysis; Ecology; Ecosystem; Fresh Water; India; Multivariate Analysis; Nitrogen; Nutrients; Saline Waters; Salinity; Seasons; Silicates
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150205
作者单位	Dept. of Chemistry, School of Applied Sciences, KIIT UniversityOdisha 751024, India; >Health, Safety and Environment Group, Indira Gandhi Centre for Atomic Research, Govt. of India, Kalpakkam, Tamil Nadu 603102, India; System Dynamics and Food Value Chains Centre for Development, Environment and Policy, SOAS, University of London, United Kingdom
推荐引用方式 GB/T 7714	Barik S.K.,Bramha S.,Behera D.,et al. Ecological health assessment of a coastal ecosystem: Case study of the largest brackish water lagoon of Asia[J],2019,138.
APA	Barik S.K.,Bramha S.,Behera D.,Bastia T.K.,Cooper G.,&Rath P..(2019).Ecological health assessment of a coastal ecosystem: Case study of the largest brackish water lagoon of Asia.Marine Pollution Bulletin,138.
MLA	Barik S.K.,et al."Ecological health assessment of a coastal ecosystem: Case study of the largest brackish water lagoon of Asia".Marine Pollution Bulletin 138(2019).