Benefits of seaweed cultivation for Indonesian economy

one year ago

American musician Davendra Banhart once said in an interview that it would be nice to be a seaweed since all it does is float in the water.

Seaweed, much like the grass on the ground, is often underestimated by people. This is despite the fact that the commodity has a variety of uses in their daily lives.

Indonesia is blessed with abundant seaweed reserves. The seaweed habitat in Indonesia is known to have reached 1.2 million hectares, making it the largest in the world.

In fact, Indonesia's seaweed reserves are estimated to account for 8.6 percent of the total biota in the oceans.

Seaweed can not only be used as a food, it can also be used as a raw material in the cosmetics industry, such as for making gels. It can even be put to medicinal use by the pharmaceutical industry.

According to the Director General of Marine and Fishery Product Competitiveness at the Maritime Affairs and Fisheries Ministry Artati Widiarti, seaweed innovation can be used to tackle several global issues such as plastic waste and climate change, which can be an opportunity for entrepreneurs in the marine sector.

For instance, seaweed can be processed into bioplastic, which can be used to replace the plastic packages presently in use, she said.

Research has shown that the use of asparagopsis taxiformis seaweed in the feed of ruminants, such as cows, can reduce methane gas emissions, she noted.

Widiarti said that she has, on several occasions, urged the public and entrepreneurs in the marine and fishery sector to be more invested in exploring the potential of seaweed.

Indonesia is rich in macro-algae, with 89 familia, 268 genus, and 911 species recorded in its oceans, based on data from the Institute of Sciences' Oceanography Research Center, she pointed out.

Red algae (Rhodophyta) are among the seaweeds that grow in the largest profusion in Indonesia's oceans, with 265 species recorded so far, followed by green algae (Cholorophyta) with 201 species, and brown algae (Ochrophyta) with 146 species.

Related topic: Seaweed for Community, Seaweed for Conservation!

Such a variety of seaweeds is a blessing that must be taken advantage of to support the nation's economy, provide jobs, raise foreign exchange, as well as provide food and nutrition, Widiarti said.

To this end, the ministry's Cultivation Director General Tb Haeru Rahayu has stated that his agency is committed to raising the production of seaweed commodity since it has a broad market, both domestic and international, to boost the economy.

Due to this broad market, seaweed can be the nation's primary commodity for cultivation, he said.

Especially since Indonesia is the second largest seaweed producer next to China, with exports reaching 195.574 ton in 2020, valued at US$279.58 million.​​​​​​​

The ministry has improved the performance of cultivated seaweed seed through a variety of innovations to create quality seeds. It has also managed to develop seed using plant tissue isolation method and will continue to improvise for other species such as the saccule strain, he said.

In addition, it has also developed seaweed cultivation areas by optimizing promising land located in Indonesia's eastern regions, such as East Nusa Tenggara, he added.

In the seaweed cultivation areas, seaweed villages will be built using eco-friendly technology in order to sustain and raise the prosperity of citizens. By utilizing and emphasizing synergy between innovation and industry, KKP believes that Indonesia can become a main player in the world seaweed industry.

Also read: Farming More Seaweed to be Food, Feed and Fuel


Despite the promising potential, there are a number of challenges to cultivating seaweed.

For instance, processing seaweed for products, such as food, cosmetics, as well as spices, can produce a large amount of waste, the ministry's head of research and human resources Sjarief Widjaja said.

Processing of gracilaria and cottonii seaweed produces 8,174,150 cubic meters of liquid waste and 62,506 tons of solid waste per year.

This is why, in the effort to process seaweed, we should not create new problems, both for the industry and the environment, Widjaja cautioned.

The large amount of waste generated while processing seaweed can be recycled for other uses. For instance, liquid waste can be used as liquid fertilizer, while solid waste can be used as a raw material in ceramics, particle boards, fertilizers, and even light bricks.

Related to seaweed: Turning Problem Sea Algae into a Replacement for Plastic

According to executive director of Maritime Research Center for Humanity, Abdul Halim, the policy for implementing maritime sector innovations, such as producing bioplastic from seaweed, needs to be accompanied by other technical training measures to allow residents to cultivate it on a large scale.

The accompanying measures must be undertaken with the right approach that is also sustainable.

By focusing the program on increasing public's technical knowledge and developing citizens' prosperity, the program will be more accurate and beneficial in the future.

Due to the variety of benefits that seaweed provides, let us hope that it could not just assist in the nation's economic recovery, but also contribute significantly to the global economy.

More info: Women's Leadership in Indonesia's Modern Seaweed Processing Industry

This article was first published by ANTARA News. The accuracy of the information contained therein is not the responsibility of Seaweednetwork.

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