The port-based activity is often associated with industrial growth in the hinterland and similar phenomenon is reported from the Gulf of Kachchh, India. The establishment of industrial clusters close to the coastline is a matter of concern as the release of e uents which in uenced the marine ecosystem. The present paper tries to evaluate the variation in the water quality during the high tide and low tide in relation with the anthropogenic or natural in uence in Gulf of Kachchh. The tidal variation is important as it re ects the in uence of the land-based activity on the coastal waters.To prove this logic a series of stations were taken along the coastal water and statistical analysis viz., Pearson correlation, Box plot, Hierarchical Cluster Analysis (HCA) and Factor Analysis (PCA/FA) were conducted. Pearson correlation and Box plot represents visual impact of parameter variations in respected tides. The chemometric analysis i.e. HCA and PCA/FA clearly indicates an anthropogenic impact on coastal water. Surface
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