Toward sustainable development of tuna longline fishery in Taiwan: Value chain analysis

Abstract

This study delves into the value chain of Taiwan’s distant-water tuna longline fishing industry and evaluates its impact on the country’s GDP. Using empirical models, the research covers the period from 2016 to 2019, highlighting variations in the industry and related sectors’ contribution to the GDP, which ranged from 0.804% to 0.640%. In response to regulatory challenges, the government has sought to optimize fleet size through vessel reduction. During the same period, the primary fisheries sector was the main contributor to the industry’s GDP, with a contribution rate fluctuating between 0.383% and 0.518%. This was followed by contributions from the fisheries input sector (contribution rate: 0.144% to 0.161%) and the marketing and service sectors (contributing 0.090% to 0.100% to the fisheries GDP). The findings suggest that the revenue of distant-water tuna fishing companies primarily derives from the direct sales of fish products. However, operational costs are continually increasing with rising international oil prices and ethical concerns surrounding seafood sourcing. Therefore, the Taiwanese government should promote expanded participation of companies in the processing and service marketing sectors. SoonYi, an exemplary company, has successfully integrated primary production, processing, and marketing operations, demonstrating the effectiveness of this approach. By aligning with evolving international market demands, adhering to rigorous standards like the Marine Stewardship Council, and prioritizing the rights of fishing workers, tuna fishing companies can elevate the value of seafood products and strengthen Taiwan's position as a leader in the distant-water tuna fishing sector.