Moreton Bay waterway given clean bill of health after floods

Woorim Beach, Moreton Bay.
Woorim Beach, Moreton Bay. Vicki Wood

JUST 12 months on from Queensland's last major flood crisis, Moreton Bay has almost returned to its former glory.

Garbage lined Moreton Bay following the 2011 floods but a waterway report card showed its turnaround from a barely-average marine area to now scoring a solid B-.

The detail of its recovery was published with the annual Healthy Waterways 2012 Ecosystem Health Report Card launched throughout south-east Queensland on Wednesday.

Moreton Bay overall managed to jump from a C- to B- in just 12 months.

Professor Jon Olley from the group's expert scientific panel said the water in the area was now clearer and had less algae, even after it was flooded with urban material.

"The health of seagrass beds and corals appear to have returned to pre-flood conditions," Prof Olley said.

"This was unexpected as the 2011 flood deposited large amounts of mud on seagrass and coral habitats."

Freshwater bodies were downgraded somewhat while estuaries and marine waterways seemed to improve.

No areas scored above an A or A+ grade, but four were graded A- and another four were given the lowest score of an F.

One of those dubious honours was held by the mid-Brisbane catchment, although three other catchments in the state's capital managed to move from an F to a D.

The results are based on Healthy Waterways monitoring 389 sites across South-east Queensland, including 135 freshwater sites and 254 estuarine and marine areas.



Northern Catchments:

  • Maroochy C (2011 B-)
  • Mooloolah C (2011 B+)
  • Noosa B (2011 A-)
  • Pumicestone C+ (2011 C+)
  • Pumicestone Passage (bay) C- (2011 C+)
  • Southern Catchments:
  • Albert C+ (2011 B-)
  • Logan D+ (2011 C-)
  • Nerang B (2011 B)
  • Pimpama/Coomera B- (2011 B)
  • Tallebudgera/Currumbin B+ (2011 A-)
  • Western Catchments
  • Bremer C (2011 C-)
  • Lockyer D+ (2011 D+)
  • Bremer River F (2011 F)

>> See for the full report.

Topics:  ecosystem environment floods healthy waterways report card moreton bay

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