Spatiotemporal Distribution of Harmful Algal Flora in the Tropical Estuarine Complex of Goa, India

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 occ...

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Main Authors: Suraksha M. Pednekar, S. G. Prabhu Matondkar, Vijaya Kerkar
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1100/2012/596276
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author Suraksha M. Pednekar
S. G. Prabhu Matondkar
Vijaya Kerkar
author_facet Suraksha M. Pednekar
S. G. Prabhu Matondkar
Vijaya Kerkar
author_sort Suraksha M. Pednekar
collection DOAJ
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 nonmonsoon (December–May). In Mandovi, total 54 HAB species with 49 in monsoon and 36 during nonmonsoon period were reported. In Zuari, total 46 HAB species with 38 in monsoon and 41 were reported during nonmonsoon period. Bray-Curtis cluster analysis based on log-transformed phytoplankton density detected seven well-defined groups revealing spatiotemporal 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.
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spelling doaj-art-ca89971493fa462e9a41540f38b364712025-02-03T01:32:50ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/596276596276Spatiotemporal Distribution of Harmful Algal Flora in the Tropical Estuarine Complex of Goa, IndiaSuraksha M. Pednekar0S. G. Prabhu Matondkar1Vijaya Kerkar2Biological Oceanography Division, National Institute of Oceanography, Dona Paula, Goa 403004, IndiaBiological Oceanography Division, National Institute of Oceanography, Dona Paula, Goa 403004, IndiaDepartment of Botany, Goa University, Taleigao, Goa 403004, IndiaMandovi 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 nonmonsoon (December–May). In Mandovi, total 54 HAB species with 49 in monsoon and 36 during nonmonsoon period were reported. In Zuari, total 46 HAB species with 38 in monsoon and 41 were reported during nonmonsoon period. Bray-Curtis cluster analysis based on log-transformed phytoplankton density detected seven well-defined groups revealing spatiotemporal 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.http://dx.doi.org/10.1100/2012/596276
spellingShingle Suraksha M. Pednekar
S. G. Prabhu Matondkar
Vijaya Kerkar
Spatiotemporal Distribution of Harmful Algal Flora in the Tropical Estuarine Complex of Goa, India
The Scientific World Journal
title Spatiotemporal Distribution of Harmful Algal Flora in the Tropical Estuarine Complex of Goa, India
title_full Spatiotemporal Distribution of Harmful Algal Flora in the Tropical Estuarine Complex of Goa, India
title_fullStr Spatiotemporal Distribution of Harmful Algal Flora in the Tropical Estuarine Complex of Goa, India
title_full_unstemmed Spatiotemporal Distribution of Harmful Algal Flora in the Tropical Estuarine Complex of Goa, India
title_short Spatiotemporal Distribution of Harmful Algal Flora in the Tropical Estuarine Complex of Goa, India
title_sort spatiotemporal distribution of harmful algal flora in the tropical estuarine complex of goa india
url http://dx.doi.org/10.1100/2012/596276
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