Voorbeelden van amphipod

• A perfectly identical plastic container was also filled with the same amount of seawater and had five amphipods from the control groups introduced into it.

• The amphipods occurred mainly on the emerged areas.

• Under normal circumstances, the amphipods help to stabilise the substrate with their tube-building activity.

• Actual sample sizes are the numbers of amphipods harbouring at least enough worms to be included in the regression, and are given in parentheses.

• These tests were performed in complete ignorance of the infection status of individual amphipods, which was determined subsequently.

• Likewise, the year-round presence of cystacanths in amphipods revealed that the acanthocephalan infects fish throughout the year.

• Parasitized amphipods were generally found lower in the water column than control amphipods (fig. 2).

• There is, however, one very well-studied host- parasite association, between an intertidal amphipod and its trematode parasites, for which sufficient information is available.

• Three mermithids emerged from amphipods held in moist sand during our study and survived outside the host until their capture.

• Infected amphipods were grouped according to the number and species of acanthocephalan cystacanths they harboured.

• As the number of worms per amphipod increased, the relative sizes of the second-, third-, and fourth-longest worms per host increased markedly.

• Shaded squares indicate cells where amphipods were present, empty cells indicate those that were searched but amphipods were not found.

• Data on amphipod behaviour and infection levels did not conform to a normal distribution.

• Every day, each container was carefully scanned for dead amphipods.

• This may simply be due to the fact that they co-occurred in large amphipods, which tend to harbour more metacercariae of all kinds.