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Benthic polychaetes as good indicators of anthropogenic impact

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Title Benthic polychaetes as good indicators of anthropogenic impact
 
Creator Sivadas, S
Ingole, B
Nanajkar, M
 
Subject Harbour activities
Polychaete
Diversity
Opportunistic species
Goa
West coast of India
 
Description 201-211




Seven stations were sampled within the
Mormugao harbour area for benthos and environmental variables from September
2003 to July 2004. A total of 71 polychaete taxa were identified from the area.
Polychaete abundance, biomass and species number was highest during post
monsoon, mainly due to new recruitment. Pre monsoon is the most stable period
for community development when, the fauna was dominated by opportunistic
deposit feeding polychaete species. Average abundance ranged from 652-4096 ind m-2
reported at channel and harbour station respectively. Harbour station was
dominated by P. pinnata, Magelona sp., Tharyx sp. and Cossura
sp. Univariate and multivariate analyses showed clear demarcation of outer
harbour, inner harbour and channel stations. Correlation of physico-chemical and biotic parameters did not show a
significant correlation. Dominance of opportunistic deposit feeding
species and low polychaete diversity in the inner harbour indicate negative
impact of harbour activities on the species composition.
 
Date 2010-07-29T11:09:13Z
2010-07-29T11:09:13Z
2010-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/10014
 
Language en_US
 
Publisher CSIR
 
Source IJMS Vol.39(2) [June 2010]