Dreancaid Trá
Is crústaigh bheaga chuartha iad dreancaidí trá a chónaíonn adhlactha ar feadh na snáithe mara agus an chreasa steancála. Is féidir na dosaenacha a fheiceáil ag lúbadh a gcorp agus ag preabadh thart nuair a ardaítear feamainn atá tagtha i dtír. Trí ábhar plandaí mar seo a ithe, tá ról tábhachtach ag dreancaidí trá chun fásra a thiontú go bithmhais.
Sand-hopper
Sand-hoppers are small curved crustaceans that live buried along the tide-line and splash-zone. Dozens can be seen flexing their bodies and hopping about when you lift washed-up seaweed. By eating this plant material, sand-hoppers play an important role converting vegetation into biomass.