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Subject: Primary sector

  • Define blue revolution, explain the problems and strategies for pisciculture development in India.

    Blue Revolution (Neel Kranti Mission) is an initiative aimed at rapid and sustainable growth in the aquaculture and fisheries sector to increase production, enhance fishers’ income, and ensure nutritional security.

    Key Components of the Blue Revolution

    Scientific modernization. Eg- Biofloc, RAS.

    Infrastructure Modernization. Eg- fishing harbors, cold chains, and processing units.

    Species Diversification. Eg- focus on high-value species like Tilapia and Sea Bass.

    Sustainable Governance – “Ecosystem-based Fisheries Management”.

    Social Empowerment – Doubling Fishers income

    Problems in Pisciculture

    Weak centre-state coordination leading to policy fragmentation. Eg- inland fisheries are a State subject, while deep-sea activities fall under the Central Government.

    Inadequate institutional reach and limited last-mile delivery. Eg- exclusion of small fish farmers in eastern India from benefits of PMMSY

    Limited access to institutional credit and over dependence on informal finance leads to high input costs and working capital shortages. Eg- Low KCC coverage.

    Post-harvest losses – India loses 20-25% of fish produce due to poor storage and transport.

    Market intermediaries cause low price realisation for fish farmers.

    Small and fragmented holdings – Low economies of scale. Eg- Majority ponds are below 1 hectare.

    While small-scale fishers comprise 90% of the workforce, they contribute less than 10% of the marine catch

    Low Productivity – 4 to 5 kg/ day in India vs 250 kg/day in Norway

    Low skills – Limited adoption of scientific aquaculture.

    Absence of quality seed and high cost of formulated feed leads to low productivity and reduced profitability. Eg- Feed accounts for 60-70% of input cost.

    Low adoption of modern systems like Biofloc, RAS, cage culture

    Water pollution – Industrial effluents in rivers affect inland fisheries. Eg- Fish mortality in stretches of Yamuna and Godavari.

    Climate change – Erratic monsoons have affected breeding cycles of fisheries

    Climate-Driven Migration and Disease due to rising sea temperatures and water pollution. Eg- White Spot Syndrome Virus (WSSV) in shrimps.

    Over-exploitation of marine resources – 90% of the global marine fish stocks have either been fully exploited or overfished or depleted (FAO)

    Strategies for pisciculture development

    Government Initiatives

    PM Matsya Sampada Yojana – Integrated value chain development

    Fisheries and aquaculture infrastructure development fund – concessional finance for cold storage

    PM Matsya Kisan Samridhi Sah-Yojana (PM-MKSSY) to formalize the unorganized sector and supporting MSMEs through digital IDs

    2026 Budget earmarked funds for integrated development of 500 reservoirs and Amrit Sarovars

    Other strategies needed

    Brood Banks and Hatchery Modernisation to ensure quality seed supply. Eg- Jayanti rohu.

    Promoting Fish Farmer Producer Organizations (FFPOs) to help small farmers gain “collective bargaining power” for bulk feed purchase and direct market access.

    Expansion of Culture Area – Bringing unused water bodies under aquaculture. Eg- wetland fisheries development.

    Affordable Institutional Credit – Universalisation of KCC for fishers and aquaculture farmers.

    Women’s Participation- Providing up to 60% subsidy for women-led aquaculture projects, particularly in ornamental fisheries and seaweed farming.

    Safety Nets- Accidental Insurance Scheme for fishers and the deployment of transponders on vessels for real-time safety tracking.

    Promotion of Modern Technologies for intensive and high-density farming. Eg- Biofloc and RAS units in Andhra Pradesh and Tamil Nadu.

    Scaling digital fish marketing for better price discovery. Eg- Platforms like Matsya Setu

    Integrated Fish Farming for income diversification. Eg- Fish + duck + paddy systems in Assam and West Bengal.

    GlobalGAP and BAP Certifications to tap into premium markets in Japan and the EU.

    Climate-resilient and Sustainable Aquaculture – Ecosystem-Based Management by adopting the FAO’s Code of Conduct for Responsible Fisheries.

    These can enable India to unlock its vast inland and marine fisheries potential and strengthen its blue economy.

  • Describing the distribution of rubber producing countries, indicate the major environmental issues faced by them.

    Natural rubber is a tropical plantation crop that requires high temperature (25°-35°C), heavy rainfall (>200 cm), and well-drained lateritic soils. Its production is highly concentrated in the humid equatorial and tropical monsoon regions.

    Distribution of Rubber Producing Countries

    Approximately 85-90% of the world’s natural rubber is produced in Asia, primarily by smallholders (plantations under 4 hectares).

    Southeast Asia

    Thailand- The world’s leading producer with 32-36% of global supply.

    Indonesia- The second-largest producer (~22% share)

    Other countries – Vietnam and Malaysia

    West Africa

    Ivory Coast- 4th largest global producer (over 1.3 million tonnes)

    Others- Nigeria, Ghana, and Liberia etc

    India- production is centered in Kerala and the North-East.

    Other Producers

    China – Yunnan and Hainan Island.

    Latin America – Brazil (original home of Hevea brasiliensis).

    Major Environmental Issues

    Deforestation- Since 2000, over 4 million hectares of tropical forest in Southeast Asia have been cleared for rubber.

    Forest-to-plantation land-use change increase carbon emissions

    Loss of Biodiversity due to monoculture. Eg- Decline of wildlife habitats in Southeast Asia.

    Water Stress- Rubber trees have high evapotranspiration rates, leading to depletion of local aquifers.

    Soil Degradation – Continuous monocropping reduces soil fertility and increases erosion on slopes. Eg- Rubber plantations in hilly tracts of Kerala.

    Effluent Pollution- discharge from small-scale processing units leads to high Biological Oxygen Demand (BOD) and ammonia levels in nearby rivers.

    Habitat Fragmentation leading to human-wildlife Conflict. Eg- Elephant habitat loss in Kerala.

    Climate Change Vulnerability – Rising global temperatures (the “28°C threshold”) and erratic rainfall are making traditional regions less viable.

    Disease Proliferation – Monocultures are highly susceptible to pathogens like Circular Leaf Spot and White Root Rot

    Adoption of sustainable rubber agroforestry, intercropping, and landscape-level land-use planning is essential to reconcile economic benefits with ecological stability. Programs like the Global Platform for Sustainable Natural Rubber (GPSNR) are pushing for “Deforestation-Free” supply chains.

  • What are non-farm primary activities? How are these activities related to physiographic features in India? Discuss with suitable examples.

    Non-farm primary activities are those primary sector activities that involve the direct extraction or harvesting of natural resources other than crop cultivation.

    Major non-farm primary activities in India

    Mining

    Fishing and aquaculture

    Forestry and logging

    Animal husbandry and pastoralism

    Collection of minor forest produce

    Relation with physiographic features

    Mining – Concentration in plateau and mountain regions due to ancient crystalline rocks and sedimentary basins. Eg- Iron ore in Odisha-Jharkhand belt, coal in Damodar valley, bauxite in Eastern Ghats.

    Forestry – Dense forests grow in high relief and high rainfall areas. Eg- Coniferous forests in Himachal & Uttarakhand, tropical evergreen forests in Western Ghats.

    Animal Husbandry – Arid, Semi-Arid and Grassland Regions. Eg- Sheep rearing in Rajasthan, cattle in Gujarat, transhumance in Himalayas.

    Fishing – Coastal Plains and Riverine Regions. Eg- Marine fishing in Kerala & Gujarat, inland fisheries in Ganga-Brahmaputra plains, brackish water aquaculture in Andhra Pradesh and Chilika lake

    Minor Forest Produce in Central Indian Highlands and North-East hills. Eg- Tendu leaves in Madhya Pradesh, lac in Jharkhand.

    Horticulture and Plantation – Grows in hill slopes and high rainfall areas. Eg- Tea in Assam & Darjeeling, spices in Kerala.

    This reflects the intimate relationship between natural resource endowment and livelihood patterns, and highlights the need for region-specific, sustainable development strategies.