Weeds
Morning Glory is a vigorous weed which grows over the top of existing vegetation. This poses a serious threat to native plants as the morning glory can completely smother and kill the mangroves.
Rubbish
Much hard rubbish (or gross pollutants) get washed into mangrove systems during rain events or high tides.
Clearing
Large-scale mangrove clearing has occurred along Norman Creek which has completely removed all habitat for native animals.