Document Detail


Classification of the Caspian Sea coastal waters based on trophic index and numerical analysis.
MedLine Citation:
PMID:  19365606     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In order to characterize the trophic state of the southern coastal waters of the Caspian Sea, trophic index (TRIX) as well as numerical analysis using cluster and discriminant analysis were employed in this study. Chemical and biological parameters (NO(3), NO(2), NH(4), PT, DO, and Chla) used in this study were collected seasonally from summer 1999 to spring 2000. A new trophic index developed by modification of TRIX indicated mesotrophic to eutrophic conditions for the Caspian Sea. Numerical analysis revealed three groups of the study area and it was found that the used methods are in good agreement. Both of them predicted poor to moderate conditions in the western part of the study area and the numerical classification predicted trophic conditions in the study area. However, TRIX was found to be a more accurate and suitable method. It performs more conservatively than the numerical classification and characterized lower classes of water quality for the stations in central and eastern parts of the study area.
Authors:
Mahshid Shahrban; Amir Etemad-Shahidi
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Publication Detail:
Type:  Journal Article     Date:  2009-04-14
Journal Detail:
Title:  Environmental monitoring and assessment     Volume:  164     ISSN:  1573-2959     ISO Abbreviation:  Environ Monit Assess     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-04-14     Completed Date:  2010-07-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8508350     Medline TA:  Environ Monit Assess     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  349-56     Citation Subset:  IM    
Affiliation:
School of Civil Engineering, Iran University of Science and Technology, P.O. Box 16765-163, Narmak, Tehran, Iran.
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MeSH Terms
Descriptor/Qualifier:
Eutrophication
Seawater / chemistry*

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