Health Spectrum

marine-Cultural-health-spectrum

The health ratings displayed on this page is an example only, the heath ratings will be updated when monitoring is completed at the end of 2021.

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Hauora

Overall Health 50%

Water quality of the Ahuriri marine environment is an important indicator of health in the marine ecosystem.

Below are the results of each of the Tohu Whāiti associated with this Tohu Matua. These Tohu Whāiti collectively inform the overall health of this Tohu Matua.

For each Tohu Whāiti we score qualitative and quantitative indicators called Pātai Inenga, we use these score to determine the health of each Tohu Whāiti. The ratings below are on a scale of 0 to 10, with 0 being very weak and 10 being very strong.

Sediment

Sediment compared to all other contaminants entering water is known as the master stressor for all aquatic life.

20%

Weighting

QUALITATIVE

How do you rate the site for diveability due to sediment/visibility for mahinga kai harvest?

Health

METHOD

Method of Testing
Hapū groups will be surveyed annually utilising the survey application.

Method of Scoring
How do you rate this diving site for visibility due to sediment?

0 = Poor visibility
10 = Excellent visibility

 

QUALITATIVE

[Insert sites selected]
How would you rate the quality of kai gathered from this spot?

Health

METHOD

Method of Testing
Hapū groups will be surveyed annually utilising the survey application.

Method of Scoring
0 = Poor
10 = Excellent

 

QUANTITATIVE

How has tangaroa been impacted by sediment entering the moana?

Health

METHOD

Method of Testing
Analyse the turbidity/TSS data on an annual basis.

Method of Scoring
Kaimātai moana rōpū to determine score post the first year of analysis.

QUANTITATIVE

How much has tangaroa been negatively impacted by sediment entering the moana. What is the degree of muddiness at each of the sites?

Health

METHOD

Method of Testing
Utilise current data sets to determine the degree of fine sediment (silt & sand) on the sea floor.

Method of Scoring
Kaimātai moana rōpū to determine score.

QUANTITATIVE

Does the current level of heavy metals present a risk to Tangaroa and whānau health?

Health

METHOD

Method of Testing
Utilise the existing data sets to determine level of heavy metals in MCA.

Method of Scoring
Kaimātai moana rōpū to determine score.

QUANTITATIVE

How much sediment accumulation is occurring at our sites and impacts habitat quality, seasonality/annually?

Health

METHOD

Method for Monitoring
Accumulated sediment 12 monthly using sediment plates in specified locations.

Method of Scoring
0 = ≥ 8mm
1-3 = 5-7mm
4-6 = 2-5mm
7-9 = 1-2 mm
10 = < 1mm

QUANTITATIVE

Is the amount of accumulated sediment effecting whānau ability to catch kōura while diving?

Health

METHOD

Method of Testing
Diver will undertake test at several sites by scratching the surface 4 times then take sample.

Method of Scoring
Take sample jar and put in turbidity meter. Kaimātai moana rōpū to determine score.

Algae Bloom

Algae blooms are present each year and pose a health risk to mahinga kai eating.

15%

Weighting

QUALITATIVE

In the past 12 months, have you seen any algae bloom at the following sites?

Health

METHOD

Method of Testing
Hapū groups will be surveyed annually utilising the survey application.

Method of Scoring
Yes, No, Don’t know

 

QUANTITATIVE

How many kai gathering closures were issued this year?

Health

METHOD

Method of Testing
Paralytic shell poisoning present in shellfish flesh (Kuku) in a 12 month period. How many closures over a 12 month period spanning how many days/weeks?

Method of Scoring
0 = ≥ 6 closures
1-3, 4-5 closures
4-6, 2-3 closures
7-9, 1 closures
10 = no closures

QUANTITATIVE

Paralytic Shellfish Poisoning (PSP) phytoplankton species

Health

METHOD

Method of Testing
Use the score from Mana Tangata Hauora, Shellfish, ‘How many species of toxic algae are there?’- Pātai Ine

Method of Scoring
0 = 0-10% of the score of MT Hauora, Shellfish, species of toxic algae.
1-3 = 10-30% of the score of MT Hauora, Shellfish, species of toxic algae.
4-6 = 40-60% of the score of MT Hauora, Shellfish, species of toxic algae.
7-9 = 70-90% of the score of MT Hauora, Shellfish, species of toxic algae.
10 = 100% of the score of MT Hauora, Shellfish, species of toxic algae.

Benthic Community

Benthic communities are largely composed of macroinvertebrates, and crustaceans, which are a key food source for mahinga kai species. These organisms inhabit the bottom substrate of the seabed and play a vital role in maintaining sediment and water quality.

15%

Weighting

QUANTITATIVE

What is the current biodiversity of the benthic invertebrate community?

Health

METHOD

Method of Testing
Utilise data collected through core samples and dredge tows.

Method of Scoring
Kaimātai moana rōpū to determine score.

QUANTITATIVE

Can the benthic invertebrate community support an abundance of mahinga kai?

Health

METHOD

Method of Testing
Utilise data collected through core samples and dredge tows.

Method of Scoring
Kaimātai moana rōpū to determine score.

QUANTITATIVE

How has tangaroa been impacted by sediment entering the moana. What is the degree of muddiness at each of the sites?

Health

METHOD

Method of Testing
Use the score from Mana Moana, Hauora, Sediment muddiness – Pātai Ine.

Methodology of Scoring
0 = 0-10% of the overall score of MM quantitative Sediment Muddiness Pātai Ine.
1-3 = 10-30% of the overall score of MM quantitative Sediment muddiness Pātai Ine.
4-6 = 40-60% of the overall score of MM quantitative Sediment muddiness Pātai Ine.
7-9 = 70-90% of the overall score of MM quantitative Sediment muddiness Pātai Ine.
10 = 100% of the overall score of MM quantitative Sediment muddiness Pātai Ine.

QUANTITATIVE

Does the current level of heavy metals present a risk to Tangaroa and whānau health?

Health

METHOD

Method of Testing
Use the averaged percent score from Mana Moana Hauora, quantitative Sediment heavy metals Pātai Ine.

Method of Scoring
0 = 0-10% of the overall score of MM quantitative Sediment heavy metals Pātai Ine.
1-3 = 10-30% of the overall score of MM quantitative Sediment heavy metals Pātai Ine.
4-6 = 40-60% of the overall score of MM quantitative Sediment heavy metals Pātai Ine.
7-9 = 70-90% of the overall score of MM quantitative Sediment heavy metals Pātai Ine.
10 = 100% of the overall score of MM quantitative Sediment heavy metals Pātai Ine.

Enteroccoci/E.coli

Water contaminated by human or animal excreta may contain a range of pathogenic disease-causing micro-organisms that may pose a health risk and accumulate in shellfish.

10

Weighting

QUALITATIVE

In the past 12 months, which of the following sites have you been swimming at?

Health

METHOD

Method of Testing
Hapū groups will be surveyed annually utilising the survey application.

Method of Scoring
Checkbox list of sites, none of the above.

QUALITATIVE

In the past 12 months, have you or anyone in your whānau been mauiui / sick after being in any of these waters?

Health

METHOD

Method of Testing
Hapū groups will be surveyed annually utilising the survey application.

Method of Scoring
Yes, No, Don’t know

QUANTITATIVE

How has the presence of faecal bacteria (E. coli) affected mana whenua access to the awa and tangaroa?

Health

METHOD

Method of Testing
Hapū groups will be surveyed annually utilising the survey application.

Method of Scoring
Checkbox list of sites, none of the above.

QUANTITATIVE

How many warnings/swimming site closures were issued over the summer season?

Health

METHOD

Method of Testing
Count the number of warnings/closures issued by HBRC and the DHB.

Method of Scoring in Summer
Kaimātai moana rōpū to determine score.

QUANTITATIVE

How many samples each summer in breach of amber mode at the sites within the MCHP area?

Health

METHOD

Method of Testing
Determine how many samples were over the amber threshold at each site.

Method of Scoring in Summer
In freshwater the concentration threshold for E. coli is 260 /100 mL and in saltwater its 140 Enterococci / 100 mL. Kaimātai moana rōpū to determine score.

pH/Salinity

Changes in salinity and pH will affect a wide range of marine biota and therefore toanga and mahinga kai species too will be affected.

15%

Weighting

QUANTITATIVE

Is the pH concentration at our monitoring sites and research bouys negatively impacting on Tangaora?

Health

METHOD

Method of Testing
Utilise the existing data sets to determine a baseline range seasonally occurring within the MCHP area.

Method of Scoring
Determined post analysis. Kaimātai moana rōpū to determine score.

QUANTITATIVE

How is annual influences of freshwater affecting Tangaroa?

Health

METHOD

Method of Testing
Analyse how salinity behaves, peaks, average, range under certain conditions of freshwater input/flow into the moana.

Method of Scoring
Determined post anaylsis. Kaimātai moana rōpū to determine score.

Temperature

Temperature is an important factor to measure when assessing water quality and marine biology.

15%

Weighting

QUANTITATIVE

How is annual influences of Temperature affecting Tangaroa?

Health

METHOD

Method of Testing
Analyse annual temperature data.

Method of Scoring
Kaimātai moana rōpū to determine score.

Dissolved Oxygen

Dissolved oxygen is necessary to many forms of life including fish, invertebrates, bacteria and plants.

10%

Weighting

QUANTITATIVE

How are annual changes in Dissolved Oxygen (DO) affecting Tangaroa?

Health

METHOD

Method of Testing
Annual analysis of DO, peaks, average, range.

Method of Scoring
To be determined by the Kaimātai moana rōpū.

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