Edited sentence: The bryozoan species Membranipora membranacea, whose colonies feed and grow exceptionally fast in a wide range of current speeds, was first noticed in the Gulf of Maine in 1987 and quickly became the most abundant organism living on kelps.This invasion harmed the kelps, so that their place as the dominant "vegetation" in some areas was taken by another invader, the large alga Codium fragile tomentosoides