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Kākahi
The kākahi or freshwater mussel was a valuable mahinga kai resource for many Māori. -
Nutrient overloading
Nutrients in waterways are essential for the growth of algae and aquatic plants but too much can destroy an ecosystem. -
Taonga Species Series: Kākahi
Feature story06 June 2017What does science tell us about New Zealand freshwater mussels? -
Water abstraction and agriculture
How do agricultural activities potentially influence water flows? -
What ails our estuaries - problems and solutions
Estuaries are at the bottom of the freshwater drainage network and, effectively, are a part of it. This means that every time we act to protect and enhance streams and rivers we are also benefiting the estuary at the downstream end. -
Temperature changes
Temperature affects the number and type of animals and plants that live in a waterway. -
Mitigation and best practice options
Some simple steps to minimise the effects of aquaculture activities on water quality and mahinga kai. -
Estuaries
Education ResourceAn estuary is a partially enclosed body of water formed where freshwater from the land meets and mixes with saltwater from the ocean. -
Horticultural activities
Land is tilled, sowed, and harvested for horticultural crops to grow. -
What is ocean acidification?
Education ResourceOcean acidification is the name given to the lowering of pH of the oceans as a result of increasing carbon dioxide (CO2) in the atmosphere. -
Kanae
Grey mullet have a worldwide distribution and Aotearoa is at the southern limit of their range.