Qiong Wang , Chengmin Sun , Liqing Chen

Tropical Marine Fisheries Research Center, Hainan Institute of Tropical Agricultural Resources, Sanya, 572025, Hainan, China
Author    Correspondence author
International Journal of Marine Science, 2026, Vol. 16, No. 3   
Received: 29 Apr., 2026    Accepted: 05 Jun., 2026    Published: 18 Jun., 2026

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

As a vital marine economic seaweed in my country, Porphyra (nori) cultivation has expanded significantly, playing a crucial role in ensuring the supply of high-quality seaweed products and driving the development of coastal fishery economies. However, while traditional cultivation models have grown rapidly, they face challenges such as excessive stocking densities, low resource utilization efficiency, mounting environmental pressure, and accumulating ecological risks, all of which constrain the industry's sustainable development. Green cultivation models have garnered widespread attention in recent years as a key pathway for the transformation and upgrading of the Porphyra industry. This paper systematically reviews the theoretical foundations and technical characteristics of green Porphyra cultivation, focusing on the application status of typical models such as eco-friendly management, Integrated Multi-Trophic Aquaculture (IMTA), and digital intelligent cultivation. On this basis, a comprehensive evaluation indicator system-encompassing ecological, economic, and social benefits-is constructed to assess the effectiveness of green cultivation models in terms of yield and quality improvement, resource utilization optimization, environmental load reduction, and enhanced industrial competitiveness. Furthermore, using typical Porphyra production regions as case studies, the paper analyzes changes in ecological and economic benefits following the implementation of green cultivation technologies, summarizing experiences in their promotion and identifying existing issues. The study concludes that green cultivation models can effectively enhance the stability of cultivation systems, promote efficient resource use and ecological improvement, and achieve synergistic gains in both economic and ecological benefits. Future efforts should focus on fostering key technological innovations, refining standardized management systems, and strengthening policy support mechanisms to drive the Porphyra industry toward high efficiency, environmental sustainability, and long-term viability.

Porphyra; Green cultivation; Sustainable development; Comprehensive evaluation; Integrated multi-trophic aquaculture (IMTA); Ecological benefits