Sediment filling up the harbour is the biggest threat to Porirua harbour. What is it? Where does it come from and how can we fix it?

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How did Porirua habour form?

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How does Porirua harbour differ from other estuaries?

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What effect will climate change have on Porirua harbour?

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What happens to Porirua harbour when it rains heavily?

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How do we learn about the processes of sedimentation in Porirua harbour?

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What are the different features of the Porirua harbour?

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What natural processes protect Porirua harbour?

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What chemical processes occur within sediment run-off?

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How much sediment comes into the harbour from urban development?

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January

Recreation

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February

Fishing

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March

Shags

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April

Pollution

Tb5_may_tides
May

Tides

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June

Urban Catchment

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July

Pauatahanui Reserve

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August

Sediment

Tb_sept
September

Creatures Great & Small

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October

The Rural Catchment

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November

Industrial Catchment

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December

The Future

Episode information

What are the options for dealing with sediment in the harbour?
What impact will Transmission gully have on sediment build up in the Porirua Harbour?

 

The Guardians of Pauatahanui Inlet (GOPI) website has details of their and PICT’s submission to the resource consent process.
 
What are other communities around New Zealand doing in response to sedimentation in their area?

 

Maori Television screened the following programme showing the response of Ngati whatua o Orakei to silting of Okaihau Bay
 
 
 
Starting in 1995, the community of Raglan began its clean up of the Whaingaroa Raglan harbour.