Published: 14 October 2026 | Estimated reading time: 8 minutes
India’s seaweed sector has grown from a small coastal activity into a policy focus linked to fisheries, women’s self-help groups, value-added products and the Blue Economy. A Department of Fisheries update issued on 13 October 2026 reported that national seaweed production reached 82,728 tonnes in 2025, up from 18,890 tonnes in 2015. It also cited 384 potential cultivation sites covering 24,707 hectares and ₹181.11 crore in approved seaweed-development projects during 2020–27 under the Pradhan Mantri Matsya Sampada Yojana (PMMSY).
The update followed a visit by Fisheries Secretary Dr Abhilaksh Likhi to a seaweed cultivation site at Munnaikadu, near Mandapam in Tamil Nadu, where he met farmers, scientists and women-led self-help groups. For exam preparation, the value lies in connecting the fresh numbers with the programme, geography, farming methods and institutions behind the sector.
What happened?
The Department of Fisheries reviewed seaweed development and market-linkage work during meetings at the ICAR-Central Marine Fisheries Research Institute (CMFRI) Regional Centre, Mandapam, and a visit to cultivators in Tamil Nadu. Farmers demonstrated raft-based and monoline cultivation, maintenance and harvesting practices. The department emphasised technology adoption, expansion of organised cultivation, processing and more dependable markets so that increased production translates into income rather than a glut of unmarketed raw material.
The meeting brought together representatives from coastal States and Union Territories, research organisations and technical agencies. The PIB release names Dr Surabhi Rai, Joint Secretary (Marine Fisheries); Smt Gunjan Krishna, Joint Secretary (Inland Fisheries); Dr J.K. Jena, Deputy Director General (Fisheries Science), ICAR; and Dr Bijay Kumar Behera, Chief Executive of the National Fisheries Development Board, among those attending. Such names are useful only where a question concerns the official event; the stable exam facts are the department, research institutions, scheme and data.
Why seaweed matters to the Blue Economy
Seaweed is a marine plant-like organism harvested or cultivated in coastal waters. Depending on species and processing, it can be used in food products, animal feed, fertilisers, cosmetics, pharmaceuticals and industrial ingredients such as agar, alginate and carrageenan. These uses create a possible route from primary cultivation into processing, packaging, quality control, logistics and export markets.
For coastal households, a diversified livelihood can matter when fishing income changes with weather, seasonal restrictions, fuel costs or resource availability. Seaweed farming may be undertaken by individuals, cooperatives or self-help groups, and its cultivation cycles and labour requirements differ from capture fishing. Women-led SHGs are specifically noted in the latest government update because organised participation can support shared equipment, training and access to schemes.
The Blue Economy is a broad term for economic activity associated with oceans and coasts that seeks to combine sustainable use with ecological protection. Seaweed cultivation fits that discussion because it can generate value from marine resources without the same feed inputs used in some animal-aquaculture operations. But it is not impact-free: species choice, farm density, water movement, coastal habitats, navigation and harvesting methods all need management.
Key figures to learn
| Indicator | Latest official figure cited | How to use it |
|---|---|---|
| India’s coastline | 11,099 km | Explains the scale of potential coastal areas, not the area already farmed. |
| Potential cultivation sites | 384 sites | Sites identified by research institutions across coastal States/UTs. |
| Area covered by those sites | 24,707 hectares | Potential area; not the same as current operational farm area. |
| Production in 2015 | 18,890 tonnes | Starting point in the comparison provided in the release. |
| Production in 2024 | 74,083 tonnes | Intermediate milestone reported by the Department of Fisheries. |
| Production in 2025 | 82,728 tonnes | Latest annual production figure in the 13 October 2026 release. |
| Approved projects, 2020–27 | ₹181.11 crore | Project approvals for seaweed development, including a Seaweed Park in Tamil Nadu. |
| Supported farm structures | 37,255 rafts and 44,080 monoline units | Support quantities reported—not annual output or farmer counts. |
Figures sometimes differ across government releases because they use different reporting dates or scopes. When an examination asks for the latest number, use the most recent dated official statement and preserve its time reference. Avoid combining project approvals from one reporting date with production figures from another as though they were recorded at the same moment.
Where cultivation sites are identified
The official release says research institutions identified 384 suitable sites across coastal States and Union Territories. The site-mapping work is associated with bodies such as ICAR-CMFRI and CSIR-Central Salt and Marine Chemicals Research Institute. The total identified area—24,707 hectares—indicates assessed potential, not a guarantee that all sites can or should be farmed simultaneously. Practical use depends on local water conditions, species suitability, environmental permissions, infrastructure and market access.
Tamil Nadu has a prominent role in the latest update. The Mandapam Regional Centre of ICAR-CMFRI has been designated a Centre of Excellence for seaweed development and research, and a Seaweed Park is among the approved development projects. Lakshadweep has been notified as a Seaweed Cluster. Cluster-based planning can concentrate training, seed supply, equipment, processing and buyer relationships in selected areas instead of spreading support too thinly.
How the PMMSY connection works
PMMSY, the Pradhan Mantri Matsya Sampada Yojana, is the flagship fisheries-sector scheme under which seaweed cultivation has been identified as a priority activity. The October 2026 release says projects worth ₹181.11 crore were approved for seaweed development during the 2020–27 period. It also reports financial assistance for culture rafts and monoline units, along with support for seed banks, training, awareness and capacity-building.
Seed supply is important because quality and species identity affect productivity and risk. Decentralised seed banks can help farmers access planting material more reliably, while training can improve farming, maintenance and harvesting practices. The government has also discussed offshore cultivation, entrepreneurship, value addition and quicker operationalisation of the Tamil Nadu Seaweed Park. These are priorities under development; they should not be represented as fully achieved outcomes unless new official data establish completion.
The Pradhan Mantri Matsya Kisan Samridhi Sah-Yojana (PM-MKSSY) was also mentioned during the visit as one of the schemes farmers may explore. Candidates should not conflate the two acronyms: PMMSY and PM-MKSSY are separate scheme names and must be identified exactly as they appear in official material.
From growing seaweed to building a value chain
Higher production is only one link in the sector. A functioning value chain also requires seed quality, equipment, post-harvest handling, drying or processing where appropriate, product standards, transport, buyers and reliable payment. If output rises faster than the capacity to process or sell it, farm-gate prices may weaken and the expected income benefit can shrink.
Value addition can involve converting raw seaweed into ingredients for food, feed, fertiliser and other products. That requires technical knowledge, testing, business investment and market agreements. This is why the recent government discussions included entrepreneurship and market linkage instead of focusing solely on the number of rafts or hectares.
Long-term growth also requires environmental safeguards. Farm sites need to be compatible with navigation, existing fishing practices, marine habitats and water quality. Introduced species require careful oversight to reduce ecological risk. Research-based mapping and monitoring should therefore remain part of expansion, not merely an initial step.
Exam relevance and static GK
For UPSC, State PSC, SSC, banking general awareness and fisheries-related recruitment, memorise the relationship between seaweed farming and the Blue Economy; the PMMSY scheme; the 11,099-km coastline; 384 sites and 24,707 hectares; production in 2015, 2024 and 2025; the ₹181.11-crore approved-project figure; and the roles of ICAR-CMFRI and CSIR-CSMCRI. Tamil Nadu, Mandapam, the Seaweed Park and Lakshadweep’s cluster status are relevant geography connections.
India’s capital is New Delhi and its currency is the Indian rupee. The latest event’s senior official was Dr Abhilaksh Likhi, Secretary of the Department of Fisheries. For examination accuracy, the designation matters: he was participating as the department’s Secretary, while the research institutions named above provide the scientific and technical support for the sector.
Possible question areas
- What is the Blue Economy, and why is seaweed cultivation associated with it?
- Which scheme identifies seaweed cultivation as a priority: PMMSY or PM-MKSSY?
- How many potential sites and hectares were reported?
- What were India’s reported seaweed production figures for 2015 and 2025?
- Which ICAR-CMFRI centre has been designated a Centre of Excellence?
- Why is a potential cultivation site different from an active farm?
- How do raft and monoline systems relate to cultivation support?
Official source
Primary source: Press Information Bureau, Department of Fisheries, 13 October 2026: seaweed cultivation, production figures and livelihoods.