Recording old oceans centre tag.
Of mud, mangroves, and radioisotopes
Mangroves advancing in the Firth of Thames. (Photo: Andrew Swales, NIWA)
Many of New Zealand’s estuaries are becoming muddier, as sediment washes into them from rivers and stormwater drains and accumulates, rather than being dispersed by tides. Mangrove swamps are a feature of some of our muddy estuaries, and the Firth of Thames is a good example of a place where mangroves and mud are steadily accumulating.
Death of a thousand cuts - ecosystem disturbance
Intertidal flats of Mahurangi Harbour. (Photo: Jane Halliday, NIWA)
‘The problem that resource managers face in trying to protect coastal environments is that damage is like death of a thousand cuts – it is often the result of many different small disturbances, the effects of which accumulate over time.’ So says NIWA scientist Simon Thrush, who is leading a long-term project on ecological disturbance modelling at NIWA.
Most environmental threats come in the form of some sort of disturbance to natural ecosystems.
