The Relationship of Spatial Fisheries Diversity with Hydrological Conditions of Ulhas River Estuary

Relationship of qualitative and quantitative fisheries diversity with the environmental variables was studied for the period of two years along the three zones, viz. upper, middle and lower, of the Ulhas River estuary. Total ten hydro-sedimentological parameters were analyzed on monthly basis from each zone to depict ambient pollution level. Zones with comparatively higher pollution level deterred fisheries landings. The principal coordination analysis (PCO) ordination and zonewise K-dominance curves revealed the direct correlation of fish diversity with the existent spatial environmental conditions of the Ulhas River estuary.