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Estimation of Potential Habitats for Three Species of Bivalves Using the Habitat Variables in Gomso Bay Tidal Flat, Korea

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Abstract

The gradual changes in the habitat of Gomso Bay negative impacted the intertidal flat aquaculture of the Manila clam Ruditapes philippinarum. The habitat evaluation of the Manila clam in Gomso Bay tidal flat that should be preceded to identify this negative impact in clam culture was conducted using the habitat variables chlorophyll-a, hydrodynamics, sediment sand, exposure time, dissolved oxygen, and salinity. Additionally, to utilize the unsuitable sites of Manila clam culture, we used the habitat suitability index by subdividing substrate variables (sorting coefficient, silt content, and mean grain size) for two species (Cyclina sinensis and Mactra veneriformis). As a result, the lower flat was chosen as the optimal habitat for Manila clam, with a habitat suitability index mean score of 0.62 and the upper flat was deemed to be the potential habitat for C. sinensis, while the middle flat was chosen for M. veneriformis. Therefore, the possibility of using unsuitable sites for Manila clam farming as alternative species was identified. These findings can be used as a reference for optimal site selection for the diversification of commercial species and decentralization of clam culture farms in the Gomso Bay tidal flat.

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Acknowledgements

This work was supported by a grant from the National Institute of Fisheries Science (R2022007, R2022060). We thank all the researchers at the Tidal Flat Research Center for their help with the sample collection.

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Correspondence to Yoonsik Cho.

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Zeon, S.R., Koo, JH., Park, JW. et al. Estimation of Potential Habitats for Three Species of Bivalves Using the Habitat Variables in Gomso Bay Tidal Flat, Korea. Ocean Sci. J. 57, 607–617 (2022). https://doi.org/10.1007/s12601-022-00085-9

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  • DOI: https://doi.org/10.1007/s12601-022-00085-9

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