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Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.40 [2011] >
IJMS Vol.40(6) [December 2011] >
| Title: | Studies on the settlement and succession of macrofouling organisms in the Kalpakkam coastal waters, southeast coast of India |
| Authors: | Sahu, Gouri
Achary, M Smita
Satpathy, K.K.
Mohanty, A.K.
Biswas, S.
Prasad, M.V.R. |
| Keywords: | Biofouling pattern
Succession
Seasonal variations
East coast of India
Bay of Bengal |
| Issue Date: | Dec-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Study was carried out to evaluate the fouling pattern,
dominant species and their seasonal succession in waters
of east coast of India.
Three series (weekly, monthly and cumulative) of teak wood panels were exposed
to coastal waters. There is wide variation
in the colonization of the biofoulers on the weekly panels. The lowest and the highest numbers of
organisms observed were between 1 and 136 per cm2, respectively.
Dominance of barnacles (12.4-99%)
on weekly panels was found throughout the year. Sizeable contribution (~7% of
the total density) of oyster settlement was observed for the first time from
this locality. Pattern of ecological succession observed was barnacles - hydroids - sea anemones -
ascidians and finally green mussels. Weekly results, available for the
first time for this locality, form
the baseline data for future reference and impact assessment studies.
Biofouling biomass (g. per 100 cm2) of weekly panels varied between
1 and 11, however, a steep increase in biomass was observed in cumulative
panels. These biomass values compared well with earlier results. Total number
of fouling taxa observed was only 30. A shift in the
peak settlement period of green mussels, was observed as compared to the
earlier report. Environmental parameters
such as salinity, chlorophyll and phytoplankton density appeared to have significant
(p≥ 0.01) contribution on biofouling settlement. |
| Page(s): | 747-761 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1033 (Online); 0379-5136 (Print) |
| Source: | IJMS Vol.40(6) [December 2011]
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