Odisha's 186 Native Fish Species Face Habitat Loss and Governance Gaps

Odisha harbours 186 recorded freshwater native fish species, including 48 endemics, that support food security, livelihoods and cultural practices for millions of residents, but habitat loss, pollution, invasive species and weak local governance are driving alarming population declines. The state ranks fourth nationally in total fish production, with freshwater fish output growing from 543,000 tonnes in 2019-20 to 734,000 tonnes in 2023-24.

Odisha contributes 7.5 per cent of India's 2.42 million waterbodies and holds significant freshwater resources across 707,000 hectares. Per capita fish consumption in the state stands at 18.33 kilograms per year — more than double the national average of 8.89 kilograms — and 94.75 per cent of Odisha residents consume fish according to the National Family Health Survey. Key threats include dams and water diversion that block migratory routes for clupeids and carps, agricultural runoff, industrial and urban effluents, non-selective fishing gear and the introduction of exotic species through indiscriminate aquaculture leasing.

Governance fragmentation is a central challenge. The Panchayati Raj system was designed to bring resource management closer to communities, but in many coastal gram panchayats fisheries governance has weakened under local political pressure. Village tanks and floodplain wetlands are often leased for short-term revenue, leading to indiscriminate exotic species stocking and year-round harvesting that undermines native fish reproduction. Fisheries, irrigation and revenue functions sit across different departments, and gram sabhas are rarely consulted before barrages, sand mining leases or aquaculture ponds are approved. Only 732 fishery cooperative societies currently operate in the state.

Authors recommend legally empowering gram sabhas to approve or veto leases of village tanks and floodplain wetlands, adopting eco-friendly leasing norms that limit exotic species stocking and incentivise native fish seed through subsidies or revenue sharing, integrating Panchayati Raj, Fisheries and Water Resources departments into joint water management plans, and rewarding panchayats that maintain breeding habitats and enforce closed seasons with additional development grants. Pollution from industrial, domestic and municipal sources and from prawn farms is identified as a priority concern requiring river revitalisation programmes aligned with both aquatic biodiversity and community well-being.

Key figure — 48 endemic freshwater fish species