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Influence of Thermal Effluents on the Growth Characteristics of Phytoplankton in the Waters of Tuticorin Bay

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Relation http://eprints.cmfri.org.in/7757/
 
Title Influence of Thermal Effluents on the Growth
Characteristics of Phytoplankton in the Waters of
Tuticorin Bay
 
Creator Gopinathan, C P
Pillai, V K
Rodrigo, Joseph Xavier
 
Subject Marine Pollution
Phytoplanktons
 
Description The paper reports the results of investigations conducted in 1990,
on the physico-chemical aspects of Tuticorin Bay waters in relation to
the abundance of phytoplankton. Selected species of phytoplankton were
experimental1y cultured to study the influence of thermal effluents. For
this purpose cultures ,vere raised in media collected from 4 stations.
showing different extents of pollution. Four species of nannoplankton,
namely. l sochrysis galbana (Haptophyceae), Dicrateria inornata
(chrysophyceae), Tetraselmis gracilis (Chloro-phyceae) and Chaetoceros
calcitrans (Bacillariophyceae) were grown in the water samples collected
from selected stations. The experiments showed stimulatory trend of
growth for the first 7-8 days and gradual inhibitory effect on the
multiplication in subsequent days. Among them, the phytoflagellates
(Jsochrysis, Dicrateria and Tetraselmis)showed good growth in the
samples of media collected from locations near to the pollution source.
The rate of production of both Tetraselmis and Dicrateria, which are
known to exist in the polluted waters, indicated enhanced growth in the
Bay waters. The growth of the diatom, Chaetoceros has been found to
be uniform except in the sample collected from the point nearest to the
source of pollution. Though the long-term effects of these samples have
not been studied, the experiments revealed the possible effects of.thermal
effiuents on the phytoplankton population in the waters of Tuticorin Bay.
 
Publisher Society of Fisheries Technologists (India)
 
Contributor Devadasan, K
Mukundan, M K
Antony, P D
Nair, P G Viswanathan
Joseph, Jose
 
Date 1994
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/7757/1/B182-NUTRIENTS_AND_BIOATINE_SURLOSTANCES_IN_AQUATIC_ORGANISMS_C.P.GOPINATHAN_ETAL_1994.pdf
Gopinathan, C P and Pillai, V K and Rodrigo, Joseph Xavier (1994) Influence of Thermal Effluents on the Growth Characteristics of Phytoplankton in the Waters of Tuticorin Bay. In: Nutrients and bioactive sebstances in aquatic organisms. Papers presented in the Symposium held at Cochin, India 16-17 September 1993 . Society of Fisheries Technologists (India), Cochin, pp. 235-246.