“STUDY ON TRACE METAL CONCENTRATION IN SEAWEED FROM VERAVAL COAST, GUJARAT”, T3149
Loading...
Files
Date
2020-10
Journal Title
Journal ISSN
Volume Title
Publisher
JAU JUNAGADH
Abstract
The purpose of this study was to investigate the concentration levels of metals in
different species of the main three marine seaweeds divisions with physico-chemical
parameter from the Veraval coastal area, Gujarat. The divisions included
Chlorophyta-green seaweeds (Ulva reticulata, Caulerpa sertularioides), Phaeophyta Brown seaweeds (Padina tetrastromatica, Cystoseira indica) and Rhodophyta-red
seaweeds (Gelidiella acerosa, Gracilaria corticata). The maximum concentration of
Cd recorded in Caulerpa sertularioides (13.62 ppm) in pre-monsoon season in March.
In the case of Pb, the highest concentration was found in Caulerpa sertularioides
(46.45 ppm) in pre-monsoon in March. According to reveals data, the maximum Zn
concentration was found in Gracilaria corticata (455.17 ppm) in September during
the monsoon season and highest Fe concentration was found in Caulerpa
sertularioides (9275.53 ppm) in post-monsoon season during the month of October.
As per the result, the general trend of metal concentration in all the seaweed species in
the present study was found in the following order: Fe > Zn > Pb >Cd. The Fe
concentration high in all six seaweed species due to the industrial activities and
seaweed abilities are essential for biomagnifying from the surrounding environment
that leads to the emergence of high Fe concentration in seaweed. The seasonal
sequence of accumulation of trace metal is pre-monsoon >post-monsoon >monsoon.
Among all seaweeds, Caulerpa sertularioides could be effectively capable to uptake
the metals in Veraval coastal area. According to result, green seaweed has more
ability to uptake of metal as compared to red and brown seaweed. This indicates that
seaweeds are generally considered as the best bioindicator of aquatic bodies for
nutrients as well as metals. Seasonal variation in water quality was investigated as
highest and lowest values followed by Temperature (32.4°C, 24.6°C), Salinity (35.40,
29.30 ppt), pH (8.3, 7.1) and Dissolve Oxygen (7.7, 5.4 ppm) respectively.