Natural disaster compels biota to adapt

Ecosystems are unsteady in terms of its stability, particularly when it is over exploited and vulnerable to natural disasters and natural changes. These might have positive or negative impacts on the survival, extinction and adaptation of the biota in the affected environment, although negative impa...

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Bibliographic Details
Published in:Current science (Bangalore) 2011-05, Vol.100 (9), p.1273-1274
Main Authors: Panigrahi, S., Hussain, K. Jahir, Ramesh, T., Mohanty, A. K., Samantara, M. K., Satpathy, K. K.
Format: Article
Language:English
Subjects:
Biota
Brackish
Brackishwater fishes
Catadromous fishes
Chanos chanos
CORRESPONDENCE
Elops machnata
Fresh water
Freshwater ecosystems
Freshwater fishes
Lentic systems
Marine
Marine ecosystems
Marine fishes
Platycephalus indicus
Tsunamis
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Summary:Ecosystems are unsteady in terms of its stability, particularly when it is over exploited and vulnerable to natural disasters and natural changes. These might have positive or negative impacts on the survival, extinction and adaptation of the biota in the affected environment, although negative impacts are frequent super(1). The 2004 Indian Ocean tsunami has drastically affected and altered many coastal and terrestrial ecosystems, including the marine environment. It had a severe impact on the human settlements, a variety of ecosystems and their biota. The consequence of the tsunami on the undisturbed natural ecosystems and their biota is less assessed scientifically. We have studied the ecological characteristics and fish diversity of an undisturbed Kokila-medu (KKM) Lake ecosystem that has been severely devastated by the tsunami. The lake is a shallow water body (0.5 sq. km area) within the campus of the Department of Atomic Energy, Kal-pakkam and is approximately 200 m ashore the southeast coast of India. It has a maximum depth of about 1.6 m, is fed by rainfall during two monsoons and has no tributaries leading to it.
ISSN:0011-3891