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Database Title	12.2.2 Environment Bay of Plenty Maritime Wetlands Vegetation Database
Keywords Type1. Type 11.	Estauries; flora; intertidal; saltmarsh; mangroves; maps, distribution. Seagrass meadows; Bay of Plenty.
Abstract	Maritime wetland vegetation (saltmarsh, seagrass meadows and contiguous palustrine wetlands) have been mapped using aerial photographs at a 1:10,000 scale. The New Zealand Wetland Classification (UNEP GRID, 1999)system is used. Attribute data includes semiquantitative density assessment of plant species present. There are historic assessments of wetland cover (1840, 1945) in Ohiwa and Tauranga Harbours.
Geographical Coverage	Bay of Plenty Region (with a few minor omissions).
Dataset start date.	1840
Dataset end date.	Ongoing data capture at set intervals.
Status/currency.	Current
Update frequency.	Variable depending on pressures and rates of change
Maintenance.	Maintained by Environment Bay of Plenty

 

Technical Evaluation
Parameters- what is measured	Extent of each plant commnuity. Semiquantitative cover assessments of plant species present. Ranked assessments of weed, animal pest and human impacts.
Parameters- what is calculated	-
Methods used to measure parameters	Digital mapping based on aerial photography with ground truthing. Visual assessments of cover classes for plant cover and ranked assessments of weeds, pests and human impacts.
Scale of use.	1:10,000
Number of records	Currently 8,263
GIS compatibility.	Yes - MS Access database linked to MapInfo with query and thematic mapping capabilities based on all attribute data.
Available formats for users.	MS Access data retrieval or visual output via MapInfo. PDF reports available on some aspects of data and database itself.
Access constraints.	Not known
Measurement Accuracy	Accurate at 1:10,000 scale.
Completeness of dataset	Covers virtually all BOP maritime wetland for 1990's survey data.
Positional accuracy	Positional accuracy +/- 10m
Database steward	Environment Bay of Plenty
Database custodian	Environment Bay of Plenty
Database custodian contact person	Scientific: Stephen Park Technical: Mark Langridge
Database custodian Contact Address Phone Fax Email	PO Box 364 Whakatane 0800 368 267 0800 ENVFAX Stephen@boprc.govt.nz mark@ebop.govt.nz
References	Report on maritime vegetation database. 2 reports on changes in seagrass cover between 1959-1996 in Tauranga and Ohiwa Harbours
Date metadata record prepared.	June 2000
Author of metadata record.	Victoria Froude / Stephen Park

 

Management Evaluation
Original purpose.	To address Environment BOP's responsibilities under RMA to monitor the state of the environment. The parameters measured are considered sufficiently sensitive to use for long term monitoring to identify the effectiveness or otherwise of plan policy and implementation for protecting marine ecology.
Relationships with classification systems.	Recording uses classical taxonomy and national listing of rarity etc. Communities are mapped using hte NZ Wetland Classification
Relationships with other databases	No direct links
Database uses?	Environment Bay of Plenty or anyone else wanting information.
Public awareness of the database	Reports on work have been well publicised and copies of all reports are held by district and school libraries.
Database strengths.	Provides region wide data on plant extent and state.
Database limitations.	Further work on developing better "state" assessments required along with addition of further supplementary attribute variables such as "legal protection".

 

What are the Current and Emerging Uses of the Database for:
Assisting with determining historic state/baseline.	Yes - There is historical information about wetland extent for Tauranga and Ohiwa Harbours.
Assisting with determining current state/baseline.	Yes - There is a map of current wetland plant comunity extent as well as various other attributes.
Assisting with modeling possible future outcomes.	Yes - possible
Risk assessment.	Yes - possible as certain risk factors are identified.
Monitoring site selection and sample design.	Yes - The map of wetland plant community extent can assist.
Aggregating and reporting data locally, regionally or nationally.	Possible at local and regional levels.