This survey resulted in the collection of 210 specimen lots of aquatic crustaceans from the Recherche Archipelago and coastal Wudjari region east of Esperance. So far 107 species have been identified from a diverse range of crustacean groups: Amphipoda (beach hoppers), Anostraca (brine shrimp), Decapoda (shrimps, crabs and crayfishes), Isopoda (slaters), Thecostraca (barnacles) and Ostracoda (seed shrimp), seven of which are considered to be new to science. A small collection of worms, 10 specimen lots, representing six morphospecies of polychaete (bristle worms) and unidentified nematodes (round worm). A total of 27 sites were sampled in the Recherche Archipelago from Daw Island in the east to Mondrain Island in the west, using a variety of methods including scuba diving, hand collection, scoop nets and baited traps. On land, specimens were collected from 17 inland aquatic and 5 marine sites between Kepa Kurl (Esperance) and Gauroojeninya (Cape Arid National Park), using scoop and seine nets and sieves.

The introduced freshwater crayfishes yabby, Cherax destructor and smooth marron, C. cainii were seen at 4 sites. A single specimen of the exotic barnacle Amphibalanus amphitrite, was collected from Goose Island. Range extensions or significant in-filling of records were documented for 39 species identified on this survey. The identification of seven putative new species (2 barnacles, 3 amphipods and 2 isopods) is substantial given the short timeframe for reporting and it is expected that further new species will be determined upon examination by relevant specialists.