Ancient groundwater
Kathryn Ryan speaks to NIWA ecologist and crustacean specialist Graham Fenwick, who is embarking on a new study of ancient groundwater ecosystems. He says the deep water held in aquifers is extremely pure because of the small crustacean and invertebrates, which filter out and eat nutrients and bacteria carried down by the water. Though out of sight, he says these ecosystems play a vital role in our environments.
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