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Alpha, beta and gamma diversity of fished marine taxa along the southwest coast of India during 1970-2005

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Title Alpha, beta and gamma diversity of fished marine taxa along the southwest coast of India during 1970-2005
Not Available
 
Creator Veena,S
Durgekar,N Raveendra
Abdurahiman,K P
Asokan,P K
Krishnakumar,P K
Sathianandan,T V
Mohamed,K S
Zacharia,P U
 
Subject Alpha
beta
gamma diversity
fished marine taxa
southwest coast of India
 
Description Not Available
The data on species-wise marine fish landings at Kerala and Karnataka during 1970-2005 were used
to examine diversities of fished taxa through alpha, beta, and gamma diversities which are the
fundamental descriptive variables of ecology and conservation biology. In Kerala, fishing zone K5
(Kochi) and K3 (Kollam-Neendakara) and in Karnataka, fishing zone KN4 (Gangolli-Coondapur -
northern Udupi district) followed by KN11 (Mangalore) had high alpha diversity values. These zones
are major trawling zones. The beta diversity values and the species turnover rates were also high for
these zones. The high beta values indicate uniqueness in species diversity when compared to other
zones. The gamma diversity was 818 for Kerala and 524 for Karnataka. Beta diversity index showed
a positive relationship with alpha index, indicating dependence of beta on alpha values. While the
arthropod diversity was similar in Kerala and Karnataka, the chordate and mollusc diversity was higher
in Kerala. The results from the present study indicate that similar studies have to be carried out from
other ecosystems along the Indian coast, so that it becomes benchmark information for studying the
anthropogenic impacts on biodiversity.
Not Available
 
Date 2021-09-16T05:54:23Z
2021-09-16T05:54:23Z
2011
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/62725
 
Language English
 
Relation Not Available
 
Publisher Marine Biological Association of India