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Spatiotemporal distribution of harmful algal flora in the tropical estuarine complex of Goa, India

DRS at CSIR-National Institute of Oceanography

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Title Spatiotemporal distribution of harmful algal flora in the tropical estuarine complex of Goa, India
 
Creator Pednekar, S.M.
Matondkar, S.G.P.
Kerkar, V.
 
Subject algal blooms
geographical distribution
temporal distribution
 
Description Mandovi and Zuari estuarine complex is monsoon-influenced estuaries located along the central west coast of India. During the past few years, there has been an increase in nutrient loading specially during monsoonal runoff which is responsible for the growth of harmful algal flora. To understand occurrence and distribution of harmful algal blooms species, daily/alternate day samplings were carried out in Mandovi and Zuari estuaries during 2007-2008 and 2008-2009 periods, respectively, comprising of monsoon (June?November) and non-monsoon (December?May). In Mandovi, total 54 HAB species with 49 in monsoon and 36 during non-monsoon period were reported. In Zuari, total 46 HAB species with 38 in monsoon and 41 were reported during non-monsoon period. Bray-Curtis cluster analysis based on log-transformed phytoplankton density detected seven well-defined groups revealing spatio-temporal variability. The density of the dominant harmful algal species was significantly positively correlated with nutrients, but negatively correlated with salinity. The results of the study indicate that monsoon plays an important role in occurrence and distribution of harmful algal species having direct correlation with salinity variations and nutrient loading.
 
Date 2012-08-21T06:01:40Z
2012-08-21T06:01:40Z
2012
 
Type Journal Article
 
Identifier Scientific World Journal, vol.2012; 2012; 11pp; Article no. 596276
http://drs.nio.org/drs/handle/2264/4111
 
Language en
 
Rights Copyright ? 2012 Suraksha M. Pednekar et al. This is an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly
cited.
 
Publisher Hindawi Publishing Corporation