NIWA - Metadata Catalogue
Healthy Estuary and Rivers of the City (Canterbury Region)
Physical, chemical and biological monitoring of Avon-Heathcote Estuary/Ihuta for Christchurch City Council, Environment Canterbury and the Ihutai Trust programme.
Sampling frequency = annual infaunal, grain size and redox sampling (Mar/Apr), 5 yearly sediment quality sampling, monthly water quality sampling.
Number of sites = 6 (benthic sampling) and 10 (water quality).
Extent of site = 1600m2 (40m x 40m) sites in the estuary, 300m2 (15m x 20m) site in lower Heathcote River and 600m2 (10m x 60m) in lower Avon River.
Number of replicates = 15 infaunal cores per site, 5 replicate sediment samples (composite) from 3 subplots per site, 1 water quality replicate per site.
Measured variables = Infaunal communities (species identifed to lowest taxonomic level possible and enumerated; mudflat snails, crabs, cockles and wedge shells measured.
Percentage cover of epiflora (macroalgae, zostera and benthic microalgae films).
Sediment characteristics (grain size, ash free dry weight, redox, chlorophyll a, nitrogen, phosphorus, cadmium, nickel, lead, zinc, chromium, copper and arsenic).
Water quality samples taken from top 0.5m of water column (salinity, DO%, DO mg/l, temperature, PH, E-coli, Enterococci, faecal coliforms, TP, DRP, TN, NNN, NH4, chloropyll a, turbidity, suspended solids, metals, organic carbon).
Sampling protocol & QA = Benthic and sediment sampling use similar methods to those outlined by Robertson et al. (2002).
Water quality samples follow an internal protocol manual. Analysis by EOS Ecology and external (Malvern Particle Analyser).
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Citation proposal
. Healthy Estuary and Rivers of the City (Canterbury Region). https://dc.niwa.co.nz:/niwa_dc/srv/api/records/b72691e8-a01a-4a16-bde0-68f4e953016e |
Simple
- Date
- Collective title
- Robertson, B.; Gillespie, P.; Asher, R.; Frisk, S.; Keeley, N.; Hopkins, G.; Thompson, S.J.; Tuckey, B.J. 2002. Estuarine Environmental Assessment and Monitoring, A National Protocol. Part A. Development, Part B. Appendices and Part C. Application. Prepared for supporting Councils and the Ministry for the Environment, Sustainable Management Fund Contract No.5096. Part A. 93p. Part B. 159p. Part C 40p plus field sheets.
- Credit
- Environment Canterbury
- Credit
- Christchurch City Council
- Credit
- Ihutai Trust
- Status
- On going
Point of contact
- Website
-
Christchurch City Council
Link to the Christchurch City Council website
- Keywords
-
- marine estuarine coastal water column benthic soft ecological chemistry physical visual observation core
- Specific usage
- MEMP
- Use limitation
- Permission of client required (Christchurch City Council) to release data/reports from Environment Canterbury. This is a joint programme that involves Environment Canterbury, CCC and Ihutai Trust.
- Access constraints
- Restricted
- Metadata language
- eng
- Character set
- UTF8
- Topic category
-
- Environment
- Description
- Avon-Heathcote Estuary/Ihutai (stretching from just outside the estuary mouth to the lower Avon and Heathcote rivers)
))
- OnLine resource
-
Point of truth URL of this metadata record
Point of truth URL of this metadata record
- OnLine resource
-
Link to the Environment Canterbury website where annual summary results are presented in reports
Link to the Environment Canterbury website where annual summary results are presented in reports
- OnLine resource
-
Link to where the outline of the sampling programme can be found.
Link to where the outline of the sampling programme can be found.
- Hierarchy level
- Dataset
- Statement
-
Quality assurance was imposed on methods.
Temporal data were in NZST.
Data collection information: Infaunal core = 150mm tall x 130mm diameter, intertidal quadrat = 0.5m x 0.5m, sediment sample = top 20mm surface sediment collected. Water sample taken from top 0.5m of water column.
gmd:MD_Metadata
- File identifier
- b72691e8-a01a-4a16-bde0-68f4e953016e XML
- Date stamp
- 2012-08-08T08:14:28
- Metadata standard name
- ISO 19115:2003/19139
- Metadata standard version
- 1.0
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