Feeding relationships are often shown as simple food chains – in reality, these relationships are much more complex, and the term ‘food web’ more accurately shows the links between producers ...
In this activity, plastic bottles are used to simulate the link between land and sea. Students investigate some of the potential impacts increased nutrient use on land can have on the marine ...
In this activity, students discuss how a variety of everyday objects can serve as metaphors for the important characteristics and functions of estuaries. By the end of this activity, students ...
Te mana o te wai describes the first right for water being with the water – rivers, lakes and streams as well as the ocean. After human water uses, there must be enough natural flow remaining to ...
Water has unusual properties that make it different to other liquids. It is the only common substance that is naturally found as a solid (ice), liquid (water) or gas (water vapour). Water has the ...
About 70% of Earth’s surface is covered by water. It is found just about everywhere and is the only naturally occurring substance on Earth existing in solid, liquid and gas states. Water is ...
There are many interacting systems that make up the Earth, many of which are dynamic. These notes discuss the importance of understanding the concept of systems with emphasis on the water cycle ...
Andrew Swales and Weno Iti from NIWA take a core sample in an estuary in Kawhia. Sediment cores can show changes in estuarine ecology over hundreds of years, giving scientists an idea of the ...
Dr Candida Savage, from the University of Otago, talks about her research into the effect of land use change on coastal areas and the organisms that live there. In particular, Candida focuses on ...
In this video, Associate Professor Stephen Wing, from the University of Otago, talks about how our understanding of food webs has changed over the years. We now have a much better understanding ...
Dr Candida Savage explains the clues she collects in estuaries and fiords, to understand how changes in land use affect these environments.
Explore this interactive diagram to learn more about life in the sea. Click on the different labels to view short video clips or images about different parts of the marine ecosystem.
Human actions at sea and on land are putting increasing pressure on the ocean and the species that live there.
