0 a small crustacean that is similar in appearance to a shrimp but has no shell --
1 a small crustacean (= animal that lives in water) that is similar in appearance to a shrimp but has no shell --
This may simply be due to the fact that they co-occurred in large amphipods, which tend to harbour more metacercariae of all kinds.
Every day, each container was carefully scanned for dead amphipods.
Data on amphipod behaviour and infection levels did not conform to a normal distribution.
Shaded squares indicate cells where amphipods were present, empty cells indicate those that were searched but amphipods were not found.
As the number of worms per amphipod increased, the relative sizes of the second-, third-, and fourth-longest worms per host increased markedly.
Infected amphipods were grouped according to the number and species of acanthocephalan cystacanths they harboured.
Three mermithids emerged from amphipods held in moist sand during our study and survived outside the host until their capture.
There is, however, one very well-studied host- parasite association, between an intertidal amphipod and its trematode parasites, for which sufficient information is available.
