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Asian Clam (Corbicula fluminea)

  • ● Asian Clams are small, averaging less than 1.5 inches and rarely exceeding 3 inches.
    ● Their shells can either be light green or light brown with distinctive elevated concentric ridges on their shell.
    ● They were first reported in the United States in 1930, and have since spread to over 39 states.
    ● These clams are a prolific and highly competitive species, capable of growing fast and spreading.
    ● Their existence can displace native species, reduce biodiversity, alter the food chain, and damage equipment such as boat mortars, intake pipes, diving gear, and commercial water systems.

  • ● Mechanical methods, such as screens and traps can be used.
    ● Chemical control uses chlorine to kill juvenile clams but can be limited due to chemical restrictions.
    ● Temperature alteration can also be used in water intake pipes to reduce clam presence.

References:

DCR Massachusetts. (n.d.) Asian clam: An exotic aquatic species. (https://www.mass.gov/doc/asian-clam-0/download)

Global Invasive Species Database (2023). Species profile: Corbicula fluminea (http://www.iucngisd.org/gisd/speciesname/Corbicula+fluminea)

Photo: Holger Krisp, License (CC BY-4.0)

Photo: Holger Krisp, License (CC BY-4.0)

References:

DCR Massachusetts. (n.d.) Asian clam: An exotic aquatic species. (https://www.mass.gov/doc/asian-clam-0/download)

Global Invasive Species Database (2023). Species profile: Corbicula fluminea (http://www.iucngisd.org/gisd/speciesname/Corbicula+fluminea)

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