L - Cochin University of Science and Technology
L - Cochin University of Science and Technology
L - Cochin University of Science and Technology
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also showed a similar pattern with salinity distribution. Miscellaneous groups showed<br />
a more or lcss similar pattern with salinity in the northern <strong>and</strong> southern transects. But<br />
crustaceans <strong>and</strong> molluscs were more in deeper stations. Correlation analysis (Table<br />
27) showed positive correlation with total biomass, biomass <strong>of</strong> polychaetes,<br />
crustaceans <strong>and</strong> miscellaneous groups <strong>and</strong> negative correlation with molluscs.<br />
Latitudinally, salinity showed an increase towards north in most <strong>of</strong> the depth zones<br />
during both seasons <strong>and</strong> benthic biomass was also more in the northern stations<br />
during both seasons. This may be due to the influence <strong>of</strong> salinity on benthic<br />
production. Comparatively high salinity was observed during pre-monsoon, which<br />
corroborates with the high biomass in that season. During post-m on soon polychaete<br />
density <strong>and</strong> total density was negatively correlated with salinity (Table 28), but<br />
density <strong>of</strong> crustaceans, molluscs <strong>and</strong> miscellaneous groups showed positive<br />
correlation with salinity <strong>of</strong> which the relation with molluscs is at significant level<br />
(F0.505. p
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