August Expedition with Jock Mackenzie
Last Updated on Friday, 16 September 2011 11:38 Written by Administrator Friday, 16 September 2011 10:56
Google map and photos of an expedition with Jock Mackenzie and SSSMeg volunteers around Snapper Creek, Teebar Creek and Crab Creek to identify points of special interest for future monitoring.
MangroveWatch – Cooloola Art Competition 2
Written by Administrator Wednesday, 15 June 2011 11:06
2011 Tin Can Bay Annual ShoreView Artshow
9 June 2011 – evening 6-9pm
Biggest and Best, and More
The art show was the biggest and best yet. We are on track for this to be an annual highlight event for environmental awareness in the region.
The artworks and photographic displays once again highlighted the beauty of often-maligned mangroves and tidal wetland areas. These works show just how important these natural areas are to the local community and aesthetic value of Tin Can Bay.
The gauntlet was laid down at this years gathering to find the world’s biggest mangrove tree. Dr Norm Duke said, it would be hard to find tall individuals locally, but it seems we are right up there with large stem diameters. The Grey Mangrove (Avicennia marina) trees on Lindsay Titmarsh’s place (Tandora) at the mouth of the Mary River, have possibly the largest stem diameters of any mangrove tree. Lindsay has measured his trees at around 3 metres in diameter. They don’t look much – these old guys – they are dead in the middle and they have scraggy tops, but they are really, really old - as determined by carbon dating to be around 730 years of age.
The art show was also an opportunity to provide feedback on some of the key findings of community collected data from MangroveWatch surveys. This was the first time that a direct inter-annual comparison of mangrove condition has been possible. Preliminary data from Snapper Creek shows that this estuary has had a rapid recovery from the drought, with notable increase in mangrove canopy between 2009 and 2011. Of note was the increase of in-stream fish habitat (logs) brought down by the recent freshwater flush. The data indicates that Snapper Creek is in good health with a high resilience capacity. Long-term data on habitat change since 1977 presents a somewhat different picture however, with large areas saltmarsh and saltpan replaced with mangroves owing to increased nutrient availability from the STP and nearby township. These changes highlight how sensitive sand based ecosystems are to nutrient addition. For more information see the presentation results in full in the “Latest News” section on the website.
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