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February 28, 2026Journal of Fisheries and Marine Sciences Education

Environmental Factors Influencing the Species Composition of Larvae and Juvenile Fish at Geum River Estuary in the West Sea During Spring and Summer

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Authors

BCByung-Sun ChinJKJun-Hyun KIMHLHan-Sam LEE

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Overview

Study investigates environmental impacts on fish larvae composition in the Geum River Estuary, indicating seasonal shifts in stability.

Key Points

  • The aim is to understand how seasonal environmental factors affect fish larval species composition and abundance at the Geum River Estuary.
  • Investigated six stations in the Geum River Estuary from 2019 to 2021.
  • Analyzed environmental factors: water temperature, salinity, dissolved oxygen, precipitation, freshwater discharge, chlorophyll a, zooplankton density, and egg density.
  • Measured species composition and abundance of fish larvae across spring and summer.
  • In spring, higher salinity correlated with increased egg density, while larval abundance was higher at lower salinity.
  • Larval abundance positively correlated with water temperature in spring.
  • No significant relationships between larval or egg density and environmental factors were observed in summer due to variability from freshwater discharge.

Cite This Study

Chin et al. (2026) studied this question.

synapsesocial.com/papers/69a287b00a974eb0d3c0388bhttps://doi.org/10.13000/jfmse.2026.2.38.1.160
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