Publication Date:
2021-05-19
Description:
Desalination technology is growing due to population growth and water shortage. These
kinds of activites can have environmental impacts where brine discharges into the sea. This
study examined the effects of brine discharge from desalination plant Chabahar-Konarak on
the sea environment were used to study polychata assemblage. Sediment samples were
sampled from 7 stations in pre monsoon and post monsoon in year 2011 using by van veen
grab (0/025m2
) samplers that 5 stations were around the discharge point and 2 station as
controls. The results of the statistical analysis showed that the abundance and richness
significances differences (P〈0/05) between stations.The most abundance of polychaetes was
occurred in station 6 with 3666.62 and 2079.92 individuals per m2
in pre and post monsoon
respectively. While the lowest values observed in station1 in pre and post monsoon periods
with 306.97 and 0 numbers in m2
.The richness, diversity and evenness results indicated that
the highest and the lowest values is observed in control stations 0.94, 1.07 and 0/67 in pre
monsoon and station 1, zero in post monsoon. According to results, we observed different
sensitivity of polychaete to brine discharges because abundance and ecological indices were
decreased in stations near the discharges area comparing to control stations far from the brine
discharges zone. Results of the CCA indicated that salinity and temperature effects on
polychaete structure. The most frequancy family in this study was spionidae that it showed
tolerance of this family to brine discharges. With monsoon occurrence of stress added to the
study area where that the lowest abundance (0) in one station in post monsoon.
Description:
Published
Keywords:
Brine
;
Desalination plant
;
Polychaeta assemblage
;
Salinity
;
Temprature
;
Desalination
Repository Name:
AquaDocs
Type:
Journal Contribution
,
Refereed
Format:
pp.41-50
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