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Moreton Bay
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Catchment Facts |
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- Total area: 1,523km2
- Many of SEQ’s major rivers and creeks flow into Moreton Bay
- Area of all catchments discharging into Moreton Bay:22,000km2
- Moreton Bay is enclosed on three sides but well flushed in the eastern and central zones
- The toxic cyanobacterium Lyngbya majuscula is a threat to the ecosystem health of Moreton Bay
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Marine results |
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C- |
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Deception Bay |
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- Elevated nutrients and phytoplankton abundance in southern section
- Reduced water clarity in northern section
- Decrease in compliance of some water quality parameters due to change in guidelines
- Stable seagrass meadows in northern section but increased Lyngbya coverage
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B- |
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Central Bay |
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- Slight decrease in water clarity and increase in nutrients and phytoplankton abundance at sites closest to the coast
- Decrease in Report Card grade due to more stringent water quality guidelines
- Stable seagrass meadows and coral communities present in the south
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D+ |
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Bramble Bay |
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- Improved water clarity and nitrogen levels throughout particulary adjacent to Brisbane
- Continued low sewage nitrogen signal throughout particulary close to the coastline
- Highly impacted habitats: no seagrass or coral communities remain
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B- |
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Waterloo Bay |
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- Good water quality throughout: improved water clarity and phytoplankton abundance
- Increase in compliance of some water quality parameters due to change in guidelines
- Slight increase in sewage nitrogen signal at some sites close to the coast
- Intact natural habitats present; seagrass meadows and coral communities
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A |
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Eastern Bay |
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- Excellent water quality throughout, but a more stringent water quality guideline has caused lower compliance
- Intact natural habitats remain; deep and stable seagrass and healthy and diverse coral in some parts
- Reduced occurrence of Lyngbya
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A |
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Eastern Banks |
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- Excellent water quality throughout
- Intact natural habitats present; deep and stable seagrass and healthy and diverse coral in some parts
- Lyngbya present at the same extent as in 2006
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D |
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Southern Bay |
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- Improved phytoplankton abundance and water clarity closest to the coast
- Report Card grade increased due to less stringent water quality guidelines in 2007
- Shallow and unstable seagrass meadows in main channel closest to the coast but expansive meadows in Canaipa Passage
- Decreased presence of Lyngbya
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