Minister for Climate Change and Sustainability
The Honourable Kate Jones
Thursday, September 02, 2010
MARINE LIFE THRIVING IN MORETON BAY’S GREEN ZONES
The Bligh Government’s decision to move towards a more sustainable Moreton Bay is already paying dividends, new scientific data is showing.
Climate Change and Sustainability Minister Kate Jones said in State Parliament today that new research indicated Moreton Bay Marine Park’s expanded green zones were showing early signs of increased fish numbers.
Ms Jones said since the start of new marine park zoning on 1 March 2009, scientific monitoring led by CSIRO was beginning to point to several promising trends.
“Moreton Bay is a favourite spot for thousands of South East Queenslanders to enjoy relaxation and recreation right on Brisbane’s doorstep,” she said.
“But using the Bay cannot come at a cost of reduced habitat and fishstocks, two key features that attract people to the region in the first place.
“That’s why green zones were expanded last year to cover 16 per cent of the marine park’s total area, to protect each of the marine park’s habitat types from fishing and to protect dugongs and turtles with the introduction of go slow zones.”
Ms Jones said the latest research showed green zones were acting as a nursery, allowing fish and crab populations to recover to more natural levels.
“We expect these levels will lead to greater numbers of fish and crabs moving outside of the green zones,” she said.
“Preliminary results show mud crabs from the new green zones are already larger and more abundant than they are in adjacent non-green zones.”
Male mud crabs of legal size (15cm) were found between three and five times more frequently in the old green zones than outside the protected areas.
In the new green zones, the numbers of legal size crabs are increasing, but haven’t yet got to the levels of the original green zones.
At Willes island, catch rates outside the green zones were less than half a crab per pot, rising to over 1 crab per pot in the new green zone, and more than two crabs per pot in the old green zone.
“Data is also indicating that certain fish species are becoming more abundant in the new offshore green zones around St Helena Island and Tripcony Bight,” Ms Jones said.
“The CSIRO and other research organisations are examining the new zoning plan’s effect on commercial and recreational fish species, the effectiveness of go slow zones in reducing impacts on turtles and dugongs and the socio-economic implications of the revised marine park.”
A survey of 200 recreational fishers was undertaken a year after the rezoning of the marine park.
The survey’s findings included:
·the impact of the rezoning on recreational fishers, in relation to closure of favourite fishing areas or crowding at fishing locations, was minimal.
·respondents reported no additional travel costs to access a fishing area as a result of closures or crowding.
·only one per cent of fishers interviewed reported a decrease in catch.
·there was a strong perception that fishing restrictions were actively enforced and that the fishers had access to sufficient information regarding zoning.
“Nature changes slowly, and it’s too early to expect to see any major response to the changed conditions in the marine park,” Ms Jones said.
“However, the results from the monitoring program are significant and point to Moreton Bay showing the same positive changes over time as have been observed in other marine park areas across the world.
“Most relevant of these for Queensland has been the equally positive impact of marine park zoning in the Great Barrier Reef.”
To find out more about the Moreton Bay Marine Park Zoning Plan, visit www.derm.qld.gov.au
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