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Database Title

6.1 Adventive marine biota dataset
Keywords
Type1.
Type 11.		 New Zealand marine; biota; adventive; extent
Abstract A variety of existing information sources were used to compile the adventive marine species dataset. Each potential adventive species was tested against nine criteria developed by Chapman and Carlton (1994) to identify adventive species. Cranfield et al (1998) found 148 plant and animal species that had been accidentally introduced that met at least three of the criteria, and four species that established after being deliberately introduced. Rates of entry of adventive species into the marine environment were estimated
Geographical Coverage New Zealand EEZ below mean high springs.
Dataset start date. Unknown
Dataset end date. Current
Status/currency. In progress
Update frequency. Unknown
Maintenance. NIWA. Likely to become incorporated in a wider marine species database.

 

Technical Evaluation

  
Parameters- what is measured
  • Species and family
  • Probable native range
  • Probable means of introduction
  • Present range within New Zealand
Parameters- what is calculated N/A
Methods used to measure parameters Reviewed literature, unpublished reports and personal communications. Biogeographical data for each species was tested against nine criteria developed by Chapman and Carlton (1994) to identify adventive species.
Scale of use. N/A
Number of records
  • 148 species recorded as established - accidentally introduced species;
  • 4 established - deliberately introduced species;
  • 7 deliberately - introduced species that did not establish.
GIS compatibility. N/A
Available formats for users. Publication: Cranfield et al, 1998.
Access constraints. Information in public arena.
Measurement Accuracy To be completed by database manager.
Completeness of dataset To be completed by database manager.
Positional accuracy To be completed by database manager.
Database steward NIWA
Database custodian NIWA
Database custodian contact person Barbara Hayden
Database custodian Contact
Address
Phone
Fax
Email		 NIWA
PO Box 8602
Christchurch
+64 3 348 8987
+64 3 348 5548
b.hayden@niwa.co.nz
References Chapman, J.W.; Carlton, J.T. 1994. Predicted discoveries of the introduced isopod Synidotea laevidorsalis (Miers, 1881). Journal of Crustacean Biology 11 : 386-400.
Cranfield, H.J.; Gordon, D.P.; Willan, R.C.; Marshall, B.A.; Battershill, C.N.; Francis, M.P.; Nelson, W.A.; Glasby, C.J.; Read, G.B. 1998. Adventive marine species in New Zealand. NIWA Technical Report 34. 48p.
Date metadata record prepared. June 2000
Author of metadata record. Victoria Froude

 

Management Evaluation

  
Original purpose. To collate known information on adventive marine biota.
Relationships with classification systems. Careful use of taxonomic classification is needed to ensure accurate identification of species.
Relationships with other databases Unknown
Known relationships with proposed EPIP indicators. Could contribute to:
  • Abundance and distribution of adventive marine species.
Database uses? Research and education purposes. Publication by Cranfield et al has provided impetus for some management agencies to initiate monitoring programmes that look at adventive biota.
Public awareness of the database Relatively low
Database strengths.
  • Raised awareness of adventive marine biota amongst management agencies.
Database limitations.
  • Not electronic dataset at this stage.

 

What are the Current and Emerging Uses of the Database for:

  
Assisting with determining historic state/baseline. To a limited extent for some species, depending on historical records.
Assisting with determining current state/baseline. Identifies current marine adventive species and their general distribution.
Assisting with modeling possible future outcomes. No
Risk assessment. The identification of adventive species, their current distribution along with other information (eg. currents) would facilitate the identification of risk areas for future spread.
Monitoring site selection and sample design. N/A
Aggregating and reporting data locally, regionally or nationally. Should be able to report regionally and nationally.