Life in the Sea - Local navigation

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Life in the Sea

New Zealand is surrounded by the sea, and scientists estimate that as much as 80% of our known species are found in the seas around New Zealand. This marine environment not only provides a habitat for an estimated 65,000 species – it’s an important source of food and provides recreational and economic opportunities for our communities. Although we might think of the marine environment as separate from land, the two ecosystems are intricately linked – we are part of the marine food web whether we live on the coast or not.

Let’s explore…

This context takes you on a journey into the sea. We take a closer look at some of the organisms that live there and how they are classified. For example, we explore the extraordinary adaptations of sea stars, the importance of cockles and how to tell if a bryozoan is a plant or an animal.

Find out more about where these marine organisms live as we discover some of New Zealand’s unique marine environments including estuaries, fiords and the continental shelf. Living in these habitats is often challenging, and marine organisms have evolved many weird and wonderful adaptations to cope with the variable environmental conditions in the sea.

Meet our scientists

We meet 4 scientists who are actively involved in research in New Zealand’s marine environment:

  •  Abby Smith is passionate about bryozoans and talks about how she is using this tiny marine organism to help monitor the impacts of ocean acidification.
  •  Candida Savage is interested in how our actions on land affect coastal environments. Find out why she describes her work as ‘environmental forensics’ and the clues she is looking for.
  •  Miles Lamare is involved with an innovative project tagging sea stars in Fiordland. Learn more about these unusual invertebrates and why they are considered a keystone species.
  •  Steve Wing is interested in interactions between marine organisms and has been researching New Zealand’s marine food webs for over 12 years. He is particularly interested in how humans affect these fragile food webs and what can be done to conserve our marine environment.

On your journey into the sea, take time to try some of the teaching and learning approaches. What has a sieve got to do with an estuary? Why are the egg shells dissolving? Can you get a fisherman and a conservationist to agree? Explore these activities and the resources found in this context to learn more about New Zealand’s marine environment and discover some of the secrets of life in the sea.

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