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Macrofouling community development at tropical coastal environment (New Mangalore Port, West Coast of India)

DRS at CSIR-National Institute of Oceanography

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Title Macrofouling community development at tropical coastal environment (New Mangalore Port, West Coast of India)
 
Creator Venkat, K.
Anil, A.C.
Wagh, A.B.
 
Subject fouling organisms
coastal zone
seasonal variations
runoff
rivers
environmental conditions
biomass
population dynamics
recruitment
 
Description Recruitment of macrofouling community in tropical waters is generalised as an year round phenomenon. Of course localities which are influenced by seasonal variation in fresh water run-off, mainly during monsoon could be exceptions. In order to evaluate the influence of environment on the development of macrofouling community at a locality which is not directly influenced by river run-off, a coastal station at New Mangalore Port (West coast of India) was monitored. Panels of admeasuring 10 x 15 cms were submerged in duplicate from a jetty at two different depths (viz. sub-surface and near bottom). The microfouling community structure at this station reveals that it has new additions, to that observed by other workers during 1973-75 period. Ascidians which were not reported before the commissioning of the harbour, are one of the dominant macrofouling components in premonsoon months. A scleractinian coral Astrangia sp. which was for the first time reported from Indian waters at Goa is also observed in Mangalore. Observations were also carried out to evaluate the abundance of larvae of the fouling organisms in the environment to find out its relationship with the macrofouling community development. Polychaete and cirripede larvae were encountered throughout the year. Bivalve larvae though present throughout the year were poorly reflected in the macrofouling community. Bryozoan and ascidian larvae were sparsely encountered, but indicate a significant correlation with their recruitment in macrofouling community
 
Date 2009-01-12T09:27:02Z
2009-01-12T09:27:02Z
1997
 
Type Conference Article
 
Identifier Proc. of US-Pacific Rim Workshop on Emerging Nonmetallic Materials for the Marine Environment, P40-P52p.
http://drs.nio.org/drs/handle/2264/2075
 
Language en
 
Rights Copyright [1997]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher US Office of Naval Research