02-08-2025
North Coastal AP bets big on seaweed cultivation
The Fisheries Department, in association with Central Marine Fisheries Research Institute (CMFRI) and District Rural Development Authority (DRDA), has decided to cultivate seaweed at Thantadi and Revupolavaram in Anakapalli district.
The efforts are part of a plan to turn north coastal Andhra Pradesh into a hub for the cultivation of seaweed, which is in high demand by the pharma, food and fashion sectors globally.
'We have taken DRDA's support to identify women farmers to start seaweed farming in 220 high-density polyethylene (HDPE) floating rafts. Each raft, made at an investment of around ₹18,000, will yield 250 kg of seaweed in 45-50 days. We have buyers from Tamil Nadu to process and retail it,' said Anakapalli District Fisheries Officer G. Vijaya on Saturday (August 2).
HDPE rafting was suggested by CMFRI, she said, adding that they are taking technical support from its scientists to take the project forward as per the State and Central guidelines and orders.
When contacted, CMFRI scientist (project leader) M. Sekhar said HDPE rafts are chosen owing to their durability, resistance to seawater corrosion and ability to withstand harsh sea conditions. It can withstand strong currents, waves and the weight of fish or seaweed. Moreover, HDPE's longevity and low maintenance make it cost-effective in the long run, compared to other materials. Also, HDPE is considered a relatively eco-friendly material for aquaculture, he added.
'Seaweed, a marine plant, is being promoted for various uses such as food, medicine, textiles and fertiliser. We (CMFRI) have identified around 50 potential locations for seaweed cultivation across Andhra Pradesh. The Centre is promoting its cultivation under the Pradhan Mantri Matsya Sampada Yojana (PMMSY). On a pilot basis, we have suggested it's cultivation along Srikakulam and Visakhapatnam coasts, where we have got positive results,' Mr. Sekhar told The Hindu.
Kappaphycus alvarezii is a common species cultivated, along with other types like Gracilaria, Saccharina japonica, Pyropia and Sargassum fusiform.
Seaweed is used in various food products such as sausages, cookies and health drinks. Edible and functional seaweed films are used for packaging, and seaweed extracts and powders are used as organic fertiliser to improve soil health and crop yields. It is also used in pharmaceuticals, textiles and biofuel production.
'Seaweed farming and processing can contribute to local economic growth by creating new jobs and markets for seaweed products. Not only women, anyone interested can contact us to apply for cultivation,' said Ms. Vijaya.
