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Species diversity in fished taxa along the southeast coast of India and the effect of the Asian Tsunami of 2004

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Title Species diversity in fished taxa along the southeast coast
of India and the effect of the Asian Tsunami of 2004
Not Available
 
Creator Vivekanandan,E
Mohamed,K S
Sathianandan,T V
 
Subject Asian Tsunami impacts
Marine fish diversity
Tamil Nadu coast
 
Description Not Available
Based on geographic features, the Tamil Nadu
coast along the southeast coast of India can be divided into
three systems, namely the Coromandel Coast, Palk Bay and
Gulf of Mannar. Data on landed catches of all marine species,
routinely recorded on a monthly basis from a total of 352
landing centres over the period 1995–2007, were examined
for differences in species composition and numbers between
the three regions and, specifically, for detectable effects of the
Asian Tsunami of 2004. The average taxonomic distinctness
(DELTA+) measure showed that the Coromandel Coast has
distinct features with regard to taxonomic structure compared
with the other two regions. However, neither this nor the
variation in taxonomic distinctness (LAMBDA+) index were
sensitive enough to reveal the effect of a natural disturbance
such as the Tsunami. Simple measures of alpha, beta and
gamma diversity were also not significantly different between
the pre-Tsunami and post-Tsunami periods. In contrast, nonmetric
multi-dimensional scaling (MDS) ordinations displayed
differences in species composition among the three
regions and also some change in the years after the Tsunami.
The latter was confirmed by analysis of similarities
(ANOSIM) tests, with the clearest and strongest effects seen
on the Coromandel Coast. It is inferred that the Sri Lankan
land mass on the eastern side of the Gulf of Mannar and Palk
Bay may have offered these regions a degree of protection
from the Tsunami waves.
Not Available
 
Date 2021-09-16T06:56:47Z
2021-09-16T06:56:47Z
2012
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/63047
 
Language English
 
Relation Not Available