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The Influence of Manila Clam ( Ruditapes philippinarum ) on Macrobenthos Communities in a Korean Tidal Ecosystem

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  • Sang Lyeol Kim

    (Marine Ecosystem and Biological Research Centre, KIOST, 385, Haeyang-ro, Yeongdo-gu, Busan 49111, Korea
    Korea Maritime University, Dongsam 2-dong, Yeongdo-gu, Busan 49112, Korea)

  • Hyung Gon Lee

    (Marine Ecosystem and Biological Research Centre, KIOST, 385, Haeyang-ro, Yeongdo-gu, Busan 49111, Korea)

  • Su Min Kang

    (Marine Ecosystem and Biological Research Centre, KIOST, 385, Haeyang-ro, Yeongdo-gu, Busan 49111, Korea)

  • Ok Hwan Yu

    (Marine Ecosystem and Biological Research Centre, KIOST, 385, Haeyang-ro, Yeongdo-gu, Busan 49111, Korea
    Korea Maritime University, Dongsam 2-dong, Yeongdo-gu, Busan 49112, Korea)

Abstract

We investigated the biological impact of extensive Manila clam ( Ruditapes philippinarum ) aquaculture on macrobenthic communities in a tidal ecosystem in Korea. We collected macrobenthos (>1 mm in length) samples seasonally in the intertidal zone in Geunsoman, Taean, Korea from April 2011 to December 2014. We identified 146 macrobenthos species, including 60 polychaetes, 53 crustaceans, and 16 mollusks. A biota–environment matching (BIO–ENV) analysis indicated that the benthic community was affected by mean sediment grain size (Mz), total organic carbon (TOC), and R. philippinarum biomass. We found no correlation between R. philippinarum and the main dominant species ( Heteromastus filiformis , Ceratonereis erythraeensis, and Ampharete arctica ), which have a different feeding strategy; thus, this may result in a lack of competition for food resources. In addition, we found that flourishing R. philippinarum positively affects the macrobenthos density but negatively affects the biodiversity index. Moreover, competition between species does not occur clearly, and environmental variables (sediment, organic carbon) are important.

Suggested Citation

  • Sang Lyeol Kim & Hyung Gon Lee & Su Min Kang & Ok Hwan Yu, 2020. "The Influence of Manila Clam ( Ruditapes philippinarum ) on Macrobenthos Communities in a Korean Tidal Ecosystem," Sustainability, MDPI, vol. 12(10), pages 1-12, May.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:10:p:4205-:d:360879
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    Cited by:

    1. Adriano Sfriso & Marion Adelheid Wolf & Alessandro Buosi & Katia Sciuto & Andrea Augusto Sfriso, 2023. "Alien Macroalgal Rearrangement in the Soft Substrata of the Venice Lagoon (Italy): Impacts, Threats, Time and Future Trends," Sustainability, MDPI, vol. 15(10), pages 1-15, May.

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