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Database Title |
7.28 Ministry of Fisheries research tagging database ("tag") |
|---|---|
| Keywords Type1. Type 11. |
New Zealand EEZ; marine; oceans; fisheries; biomass; growth rates. Tagging; recapture. |
| Abstract | This database is designed to handle tagging and release details for all tagging programmes. Tag recaptures have been obtained for 21 species, with 8 species (red rock lobster, snapper, kahawai, kingfish, hapuka, mako shark, scallop,and blue cod) accounting for 99% of all recaptures. Two of these species (lobster and snapper) account for 75% of recaptures. |
| Geographical Coverage | New Zealand EEZ |
| Dataset start date. | 1968 |
| Dataset end date. | Current |
| Status/currency. | In progress |
| Update frequency. | Annual |
| Maintenance. | NIWA |
| Database size. | 196,803 Kb |
Technical Evaluation |
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|---|---|
| Parameters- what is measured | At the time of tagging:
At recapture:
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| Parameters- what is calculated |
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| Methods used to measure parameters | Standard tagging methods. The database is being updated to include old records. |
| Scale of use. | Variable |
| Number of records | Unknown |
| GIS compatibility. | Not to date. It is possible as latitude and longitude data is collected. |
| Available formats for users. | Electronic relational database; requests are usually responded to with a
flat file (Excel, ASCII). Numerous reports that analyse the data |
| Access constraints. | By request to Ministry of Fisheries. There is no cost for the data although there is a NIWA charge to extract data. |
| 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 | Ministry of Fisheries |
| Steward contact person. | Kim Duckworth (Research Data Manager) |
| Database custodian | NIWA |
| Database custodian contact person | Don Robertson |
| Database custodian Contact Address Phone Fax |
PO Box 14 901 Kilbirnie Wellington + 64 4 386 0519 + 64 4 386 0572 d.robertson@niwa.cri.nz |
| References | Wood, B. 1993. Marine research database documentation:10.tag. NIWA Internal Report No 216 13p. Clark, M.R.; Paul, L.J. 2000. Atlas of New Zealand fish and squid distributions from mid water trawls, tuna long line sets, and aerial sightings. NIWA technical Report 72. 171p. |
| Date metadata record prepared. | June 2000 |
| Author of metadata record. | Victoria Froude |
Management Evaluation |
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|---|---|
| Original purpose. | To improve fisheries management |
| Relationships with classification systems. | N/A |
| Relationships with other databases | Information from this database is used with other fisheries databases and physical databases to address various management and research questions. |
| Known relationships with proposed EPIP indicators. | Not known. |
| Database uses? | To estimate fish movement and therefore fish stock numbers. To estimate fish growth rates. |
| Public awareness of the database | Low |
| Database strengths. | - |
| Database limitations. | Not all tagging data in database |
What are the Current and Emerging Uses of the Database for: |
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|---|---|
| Assisting with determining historic state/baseline. | The database may assist with this, especially when the older data is entered. |
| Assisting with determining current state/baseline. | It does this for the parameters calculated. |
| Assisting with modeling possible future outcomes. | The database is used to help develop models for the population trends and biomass of the main commercial species (e.g. orange roughy). |
| Risk assessment. | The models are used to project likely future outcomes and risks under different senarios for the main commercial fish species. |
| Monitoring site selection and sample design. | N/A |
| Aggregating and reporting data locally, regionally or nationally. | N/A |