New Zealand fish and squid distributions from research bottom trawls 1964-2008

Latest version published by The National Institute of Water and Atmospheric Research (NIWA) on Aug 8, 2018 The National Institute of Water and Atmospheric Research (NIWA)

From 1997 to 2008, a research programme to determine if fish assemblages in the New Zealand region could be classified into clearly identifiable communities based on their associations with each other and with environmental features was undertaken. This dataset is taken from the resulting fish communities database. These data have been used to show geographical and depth distributions of species from all research tows within the New Zealand EEZ since 2008.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 495,704 records.

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Downloads

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 495,704 records in English (17 MB) - Update frequency: not planned
Metadata as an EML file download in English (7 KB)
Metadata as an RTF file download in English (10 KB)

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

NIWA (2014). New Zealand fish and squid distributions from research bottom trawls. Southwestern Pacific OBIS, National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand, 486781 records, Online http://nzobisipt.niwa.co.nz/resource.do?r=obisprovider released on May 8, 2014.

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is The National Institute of Water and Atmospheric Research (NIWA). This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 2a636fd6-dc73-49c0-9e5b-26bd05532313.  The National Institute of Water and Atmospheric Research (NIWA) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF New Zealand.

Keywords

Occurrence; Observation

Contacts

Who created the resource:

Kevin Mackay
Marine Data Manager
NIWA Greta Point Wellington NZ
http://www.niwa.co.nz

Who can answer questions about the resource:

Kevin Mackay
Marine Data Manager
NIWA Greta Point Wellington NZ
http://www.niwa.co.nz

Who filled in the metadata:

Kevin Mackay
Marine Data Manager
NIWA Greta Point Wellington NZ
http://www.niwa.co.nz

Geographic Coverage

New Zealand EEZ

Bounding Coordinates South West [-57.5, -170], North East [-24, 157]

Temporal Coverage

Start Date / End Date 1961-03-16 / 2008-07-19

Sampling Methods

Most records are from random bottom trawls, but there are also records from midwater trawls, scampi trawls and non-random tows (such as gear trials and target tows).

Study Extent Fisheries research trawls since 1961 over the New Zealand EEZ area.
Quality Control The scientific names have been mapped to the World Register of Marine Species (WoRMS), using the online taxon match tool. All sampling locations have been plotted on a map to perform a visual check. The most important check would be to see if all sampling locations are (1) in the marine and/or brackish environment and (2) within the described sampling area.

Method step description:

  1. Only successful trawl records were selected. All "foul" shots are excluded as the net may have ripped and some species may have escaped on hauling. All species identification have been validated and outliers based on geographic and depth distributions have been checked.
  2. -Catch weights (kg) are added to the "occurrenceRemarks" field. -Sea temperature recorded by trawl headline sensors are added to the "dynamicProperties" field.

Bibliographic Citations

  1. Anderson O.F., Bagley, N.W., Hurst, R.J., Francis, M.P., Clark, M.R., & McMillan, P.J. 1998: Atlas of New Zealand fish and squid distributions from research bottom trawls. NIWA Technical Report 42. 303 p. Anderson et al. (1998)

Additional Metadata

marine, harvested by iOBIS

Alternative Identifiers 2a636fd6-dc73-49c0-9e5b-26bd05532313
https://nzobisipt.niwa.co.nz/resource?r=obisprovider