ecosystem health index and the annual report card ben longstaff 4-august-2005 presentation to tmaw
TRANSCRIPT
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Ecosystem health index and the annual
report card
Ben Longstaff
4-August-2005
Presentation to TMAW
![Page 2: Ecosystem health index and the annual report card Ben Longstaff 4-August-2005 Presentation to TMAW](https://reader035.vdocuments.net/reader035/viewer/2022070306/551756645503460e6e8b45e8/html5/thumbnails/2.jpg)
![Page 3: Ecosystem health index and the annual report card Ben Longstaff 4-August-2005 Presentation to TMAW](https://reader035.vdocuments.net/reader035/viewer/2022070306/551756645503460e6e8b45e8/html5/thumbnails/3.jpg)
• All major waterways from Noosa All major waterways from Noosa River to the NSW BorderRiver to the NSW Border
• 250 water quality sites (monthly)250 water quality sites (monthly)
• 250 sewage plume mapping sites 250 sewage plume mapping sites (annual)(annual)
• 20 seagrass monitoring sites20 seagrass monitoring sites
• 6 coral monitoring sites6 coral monitoring sites
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• Maps of entire region (Bay and estuaries)• Most water quality parameters
Annual mediansMonthly Uncertainty in prediction
Spatial presentation
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Regional overviews
• Comparison between waterways• Prioritization of action
0.0 1.0 2.0 3.0
BremerBrisbane
AlbertLogan
PimpamaCaboolture
PineNoosa
MaroochyNerang
MooloolahCurrumbinCoomera
TallebudgeraPumicestoneCoombabah
Bramble BayDeception
Broadw aterSouthern
Waterloo BayCentral BayEastern Bay
Eastern
Nutrient Concentration (mg/L)
Total Nitrogen (mg/L)
Total Phosphorus (mg/L)
**
**
**
*
*STP discharge into system
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Local waterway synthesisEach year all data for one waterway analyzed,
synthesized and presented
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Ecosystem Health Report Card
Moreton Bay (Australia):– Annual release since 1999
– The most important tool for evaluating and communicating health of the regions waterways
– Significantly raised awareness of waterways health
– Often directed / focused management action
– Impetus for some costly (but environmentally important) intervention
High profile media release:
Media Interest Public Awareness Political Interest Action
Report Card needs to be robust and defendable
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Proportion of the waterways area that complies with the established objectives (EHI)
Report CardRating
Wat
erw
ay /
regi
on o
f bay A
C
F
D
B
How the report card grades are generatedHow the report card grades are generated
• 80% of grade determination based on Ecosystem Health Index (EHI)• 20% of grade determination based on interpretation of data not compatible with EHI approach / expert opionio
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Annual
SEQRWQMS water quality objectives
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Central Bay
Eastern Bay
Bramble Bay
Eastern BanksWaterloo Bay
Nth Deception Bay
Sth Deception Bay
1 year of monthly monitoring data
Spatial interpolation of annual median
Area of compliance calculated
Ecosystem health indicator (e.g. Secchi depth)
Central Bay
Eastern Bay
Bramble Bay
Eastern BanksWaterloo Bay
Nth Deception Bay
Sth Deception Bay
Central Bay
Eastern Bay
Bramble Bay
Eastern BanksWaterloo Bay
Nth Deception Bay
Sth Deception Bay
Central Bay
Eastern Bay
Bramble Bay
Eastern BanksWaterloo Bay
Nth Deception Bay
Sth Deception Bay
Central Bay
Eastern Bay
Bramble Bay
Eastern BanksWaterloo Bay
Nth Deception Bay
Sth Deception Bay
Process repeated for
each indicator and averaged
Central Bay
Eastern Bay
Bramble Bay
Eastern BanksWaterloo Bay
Nth Deception Bay
Sth Deception Bay
Ecosystem Health Index (80%)Ecosystem Health Index (80%)Proportion of the waterways area that complies with the established objectives
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Estuaries
Moreton Bay
Different indicators for estuaries and Moreton Bay….
Region of Moreton Bay EHI Chl_a TN delN Secchi LyngbyaBramble Bay 0.64 0.75 0.75 0.59 0.55 N/ACentral Bay 0.93 0.75 1.00 1.00 0.97 0.94Deception Bay 0.81 0.77 0.92 0.99 0.61 0.70
1 = 100% of area complies with objective0 = 0% of the area complies with the objective
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Ecosystem Heath Index
• Spatial compliance of key indicators
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Proportion of the waterways area that complies with the established objectives (EHI)
Report CardRating
Wat
erw
ay /
regi
on o
f bay A
C
F
D
B
How the report card grades are generatedHow the report card grades are generated
• 80% of grade determination based on Ecosystem Health Index (EHI)• 20% of grade determination based on interpretation of data not compatible with EHI approach
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Communication
• Report card– Grades– Management response– Regional summaries
• Annual report– Linked to report card– Regional overview– Local waterway summaries