Wednesday 03 / September / 2025
Muscat: A research study conducted by Sultan Qaboos University has identified more than 400 species of seaweed in Oman’s seas, 18 of which are unique to the country. Most of these species are found in the Dhofar Governorate.
The study highlighted the significant potential of Omani seaweed for commercial exploitation, particularly since it does not require fresh water or arable land.
It also documented the composition and characteristics of these marine plants by monitoring their various growth stages. Species were selected based on comparisons with previous studies conducted in other regions and under different conditions, especially in cases where research on certain plant families was scarce.
Dr. Ahmed Ali Al Alawi, Associate Professor at the College of Agricultural and Marine Sciences at Sultan Qaboos University, explained that seaweeds are typically classified by color (pigmentation) into three main groups: brown algae, green algae, and red algae. Seaweeds are large aquatic algae also known as sea plants or sea vegetables. The study has provided crucial information for better assessment and management of this natural resource and its economic potential in Oman.
He added that the study revealed vast potential for the use of Omani seaweed in various fields. For instance, certain species have been identified as suitable for protein and colloid production, while others show promise for highly efficient pharmaceutical applications and possess a significant capacity for carbon dioxide absorption.
Dr. Al Alawi noted that seaweed is not traditionally used in Omani culture, and published data on locally growing species has been limited.
He pointed out that East Asian countries such as Japan, China, Korea, and the Philippines have long incorporated seaweed into their cuisines. In other parts of the world, however, its use has been largely restricted to industrial applications, such as sources of gelling and thickening agents like agar, alginate, and carrageenan. The migration of Asians to Western countries, coupled with recent industrial advancements, has led to widespread exploitation of seaweed, driving global demand to approximately $18 billion in 2024. This figure is projected to reach $44 billion by 2034.
In addition to traditional uses, seaweed is rich in micronutrients, macronutrients, and numerous bioactive compounds with medicinal properties. As a result, seaweed-based products are now used across a wide range of industries, including food, medicine, cosmetics, and agriculture. This study will undoubtedly contribute to the utilization of this important economic resource within the national economy.
