DOI: 10.18195/issn.0312-3162.25(4).2010.378-381 Records of the Western Australian Museum 25: 378–381 (2010). Absence of the European shore crab, Carcinus maenas, from the Fremantle marine area, Western Australia Fred E. Wells1, Justin I. McDonald2 and Michael J. Travers3 Western Australian Fisheries and Marine Research Laboratories, PO Box 20, North Beach, Western Australia 6920, Australia. E-mail:
[email protected]. 1 Research Associate, Field Museum of Natural History, Chicago, Illinois, U.S.A. Present addresses: 1. Enzer Marine Environmental Consulting, PO Box 4176, Wembley, Western Australia 6014, Australia. 2 Ministry of Agriculture and Forestry, PO Box 2526, Wellington, New Zealand. 3 Australian Institute of Marine Science, Botany Building, University of Western Australia, Crawley, Western Australia 6009, Australia. The European shore crab, Carcinus maenas Fisheries (DOF 2000) and is one of the target species (Linnaeus, 1758) is an invasive species that was for introduced marine pest monitoring listed by the originally distributed along the coast of North National Introduced Marine Pests Coordination Africa and Europe. It has been widely introduced Group (NIMPCG 2006). In Western Australia, to the east and west coasts of North America, C. maenas is known from a single mature male South America, Australia, Asia, and South Africa 7.1 cm in carapace width collected by “Smith” at (Ahyong 2005; Klassen and Locke 2007). The crab Blackwall Reach in the Swan River in 1965 (Zeidler is a voracious feeder that consumes a wide variety 1978) (WAM C14833; Figure 1). The record was of organisms. It is destructive and is regarded subsequently cited by Furlani (1996), Hass and Jones as a danger to commercial fisheries for molluscs, (2000), Pollard and Hutchings (1990), and Ahyong crustaceans and scalefish (Klassen and Locke 2007).