Marine Ecology - Harbours (Auckland Region)

Physical and biological monitoring of harbours within the Auckland region for Auckland Council. Sampling sites are located in the Central Waitemata Harbour (CWH), Manukau, Mahurangi, Kaipara, Upper Waitemata Harbour (UWH).

Sampling frequency = bimonthly in CWH (Feb, Apr, Jun, Aug, Oct, Dec), trimontly in Mahurangi (Jan, Apr, Jul, Oct) and UWH (Feb, May, Aug, Nov) for some sites and annually for some muddy sites to avoid disturbance.

Sampling began in 1987 (not at all sites) and is ongoing, apart from the subtidal sampling in Mahurangi which ceased in 2010.

Number of sites = 33 total (note some sites monitored on rotational basis, 2 years on and 5 years off).

Extent of site = 9000m2.

Number of replicates = 12 per site.

Measured variables = Infaunal communities using 500um mesh (species identifed to lowest taxonomic level possible and enumerated, key bivalves measured).

Sediment characteristics (grain size, TOC and chlorophyll a). Sampling protocol & QA = Internal, NIWA laboratories.

 
Citation proposal
. Marine Ecology - Harbours (Auckland Region). https://dc.niwa.co.nz:/niwa_dc/srv/api/records/e42a7f49-abd6-481c-8171-5fd0fea87f8e
 

Simple

Date
Credit
NIWA, Auckland Council
Status
On going

  Point of contact

  +64 9 301 0100 
Website
Auckland Council  

Link to the Auckland Council website

Keywords
  • intertidal sandflats mudflats subtidal infauna macrofauna marine estuarine coastal benthic soft ecological chemistry physical core visual observation
Specific usage
MEMP

 

Use limitation
Restricted. Permission required (Auckland Council) to access data/reports.
Access constraints
Restricted
Metadata language
eng
Character set
UTF8
Topic category
  • Environment
Description
Central Waitemata Harbour, Manukau, Mahurangi, Kaipara, Upper Waitemata Harbour
N
S
E
W


OnLine resource
Point of truth URL of this metadata record  

Point of truth URL of this metadata record

OnLine resource
Link to the Auckland Council Reports webpage  

Link to the Auckland Council Reports webpage

Hierarchy level
Dataset
Statement

Subtidal sampling in Mahurangi ceased in 2010.

Quality assurance was imposed on methods.

Geographic data used NZTM (LINZ). Temporal data were in NZST.

Data collection information: Infaunal core = 150mm tall x 130mm diameter. Seive mesh = 500um. Sediment core = 20mm tall x 20mm diameter.

gmd:MD_Metadata

File identifier
e42a7f49-abd6-481c-8171-5fd0fea87f8e   XML
Date stamp
2012-08-08T08:14:39
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0

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