Table 1.
Pest species trapped or had been found by crew members on board 21 ferries
| Species | Number of individuals | Number of ships | Ship location | Source |
| Blattella germanica | 431 | 11 | Galleys, dinning rooms, bars | Trapped on board, complaints, crew interview |
| Drosophila spp. | 15 | 3 | Food storage rooms | Trapped on board |
| Musca domestica | Several | 18 | Galleys, dinning rooms, bars | Crew interview |
| Bedbugs1 | Several | 3 | Lounge, cabin | Trapped on board2, complaints |
| Fleas1 | Several | 1 | Cabin | Complaints |
| Ants1,3 | 17 | 2 | Garage, food storage room | Trapped on board |
| Beetles (coleoptera)3 | 1 | 1 | Garage | Trapped on board |
| Butterfly (lepidoptera)3 | 1 | 1 | Garage | Trapped on board |
| Spiders3 | 2 | 2 | Garage, luggage storage room | Trapped on board |
| Reptiles (Chalcides ocellatus)1 | 1 | 1 | Cabin | Crew interview |
| Mice or rats 1 | 3 | 3 | Galley,4 garage, deck | Crew interview, complaints, other evidence4 |
1These species were not sent to the laboratory for identification.
2Trapped on board by Public health officers in 2003.
3Captured in rat-traps
4A rat trap was placed in the galley of a ferry that mainly transferred tracks and merchandise