Temporal patterns in fish community structure; environmental perturbations in a well-mixed tropical estuary
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Title |
Temporal patterns in fish community structure; environmental perturbations in a well-mixed tropical estuary
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Creator |
Sreekanth GB, Manju Lekshmi N and Singh NP
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Subject |
Fish communities, Temporal pattern, Environmental factor, Zuari estuary, Coastal ecosystem
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Description |
Not Available
Not AvailableThe composition of fish communities in tropical coastal ecosystems is regulated by seasonal patterns in the oceanographic environment. In the present study, the authors have studied the temporal variation of fish assemblages and environmental variables in a tropical coastal ecosystem, Zuari estuary in Goa located along the west coast of India. The species abundance and environmental data were subjected to multivariate analysis (canonical correspondence analysis and non-metric multidimensional scaling) and showed seasonal differences in fish communities. The second canonical axis was loaded with salinity, temperature, dissolved oxygen, transparency and depth separating the seasons into discrete groupings. The authors also found that the species diversity is significantly less during the monsoon season in comparison to pre- and postmonsoon seasons. Moreover, season-specific diagnostic species were identified using SIMPER analysis. The seasonal migration of species mediated by environmental factors seems to be an important element which determines the temporal pattern in fish communities. The results of the study have implications on fish diversity, conservation and coastal fisheries management. ICAR, New Delhi |
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Date |
2018-11-12T06:58:45Z
2018-11-12T06:58:45Z 2017-07-01 |
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Type |
Research Paper
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Identifier |
Sreekanth GB, Manju Lekshmi N and Singh NP (2017). Temporal patterns in fish community structure; environmental perturbations in a well-mixed tropical estuary. PNAS-SEC-B Biological Sciences, 87(1): 135-145
ISSN: 0369-8211 http://krishi.icar.gov.in/jspui/handle/123456789/10339 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Springer
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