OPEN ACCESS plSSN : 0374-8111 | elSSN : 2287-8815
OPEN ACCESS plSSN : 0374-8111elSSN : 2287-8815
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kfas, vol. 58, no. 4, pp.364-375, August, 2025 DOI. https://doi.org/10.5657/KFAS.2025.0364

A Study on the Distribution and Fishery Characteristics of Sardine Sardinops melanostictus in the East Sea of Korea from 1937 to 1940

유현지·양재형·강수경·김성훈1·진주원·정경미*
국립수산과학원 연근해자원과, 1국립부경대학교 해양생산시스템관리학부

  • ABSTRACT

    This study analyzed experimental fishing survey data colleccted from 1937 to 1940 to evaluate the seasonal distribution, environmental preferences, and gear selectivity of sardines Sardinops melanostictus in the East Sea of Korea. Sardine catches were concentrated between May and October, particularly within sea surface temperatures (SST) of 15-25°C. When SST exceeded 23°C, sardine distribution shifted markedly northward, extending into North Korea’s East Sea and indicating distinct seasonal migration patterns. Monthly catch per unit effort (CPUE) of sardines showed a significant relationship with both sea surface and air temperatures, with peak values at 15-17°C SST. This pattern likely reflects the characteristics of fixed gear (gillnets), which depend on fish passing through the gear location rather than on broad environmental conditions. Selectivity analysis revealed that larger mesh sizes captured narrower size ranges, whereas smaller meshes retained broader spectrum of sizes. These findings provide important insights into sardine habitat preferences and the influence of fishing gear effects, offering a historical reference for future assessments of stock variability and adaptive fishery management under changing climatic conditions.

  • Keyword

    Sardine, Distribution, Mesh selectivity, East Sea, 1930s