Value-chain analysis of Kenya’s artisanal tuna fishery focusing on skipjack tuna <i>Katsuwonus pelamis</i> and kawakawa <i>Euthynnus affinis</i>
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This study investigates the value chain of Kenya’s artisanal tuna fishery targeting skipjack tuna <i>Katsuwonus pelamis</i> and kawakawa <i>Euthynnus affinis</i>. The study used an integrated approach combining a questionnaire survey and catch assessment data at four landing sites along the coast of Kenya to examine the socio-demographic profiles of key actors (i.e. fishers, traders, processors, and agents/investors), the structure and function of the value-chain nodes, and the associated economic benefits. The findings reveal that fishers, the primary actors, sell most of their catch (53%) to agents, with the remainder distributed to traders (20%) and processors (18%). Processors, predominantly women, play a key role in the value chain and had the highest net profit margin (49.5%). Limited post-harvest infrastructure, inadequate transportation and poor marketing conditions were identified as key challenges that impact the quality of the fish sold, and hence the income generated. These challenges disproportionately affect fishers who have limited access to market information and financial resources. The findings demonstrate the need for multi-level interventions to optimise benefits from the artisanal tuna fishery along the entire value chain, taking into consideration the economic, environmental and social dimensions.
本研究针对肯尼亚以鲣鱼（Katsuwonus pelamis）和巴鲣（Euthynnus affinis）为目标捕捞物种的个体手工金枪鱼渔业价值链开展系统探究。本研究整合问卷调查与肯尼亚沿海四个渔获卸运点的渔获评估数据，对核心参与主体（捕捞渔民、贸易商、加工商及代理商/投资者）的社会人口学特征、价值链节点的结构与功能，以及相关经济效益进行分析。结果显示，作为核心主体的渔民将53%的渔获销往代理商，剩余渔获分别流向贸易商（20%）与加工商（18%）。以女性为主的加工商在价值链中扮演关键角色，其净利润率达49.5%，为各参与主体中最高。研究识别出三大核心制约因素：采后基础设施匮乏、运输条件不足及营销环境欠佳，这些因素直接影响在售渔获品质，进而拉低整体营收。此类制约对获取市场信息与金融资源渠道有限的渔民造成了不成比例的负面影响。研究结果表明，需兼顾经济、环境与社会三重维度，采取多层次干预措施，以优化肯尼亚沿海个体手工金枪鱼渔业全价值链的收益水平。
