Catch data from New Zealand research trawls since 2008

最新版本 由 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node 發佈於 Nov 27, 2019 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node

This dataset contains data from research trawls that have occurred since 2008 and are stored the NIWA/MPI Trawl database These data results from data collected by research trawl surveys on research vessels and chartered commercial fishing vessels. Trawl surveys are a major tool used by research scientists for stock assessment. They are used to estimate basic parameters of commercial fish populations, including biomass, sex ratio, and the proportion of sexually mature fish, and the distribution of ages and lengths in the population. These parameters may be used in estimating mortality and growth rates.

This dataset is a continuation of data from the NIWA/MPI Trawl database that was initially released as the New Zealand fish and squid distributions from research bottom trawls 1964-2008 available at https://nzobisipt.niwa.co.nz/resource?r=obisprovider

Data Records

The data in this sampling event 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 13,583 records. 2 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

  • Event (核心)
    13583
  • ExtendedMeasurementOrFact 
    142914
  • Occurrence 
    117427

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.

下載

下載最新版本的Darwin Core Archive (DwC-A)資源,或資源元數據的EML或RTF文字檔。

DwC-A資料集 下載 13,583 紀錄 在 English 中 (5 MB) - Update frequency: 依其他週期更新
元數據EML檔 下載 在 English 中 (7 KB)
元數據RTF文字檔 下載 在 English 中 (10 KB)

版本

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

如何引用

研究者應依照以下指示引用此資源。:

SWPRON (2017). Catch data from New Zealand research trawls. Southwestern Pacific OBIS, National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand, 15157 records, Online http://nzobisipt.niwa.co.nz/resource.do?r=trawl released on April 19, 2017.

Rights

研究者應尊重以下權利聲明。:

The publisher and rights holder of this work is Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF 註冊

此資源已向GBIF註冊,並指定以下之GBIF UUID: 421890f7-e909-40ed-a573-b1c9529a55fa。  Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node 發佈此資源,並經由Ocean Biogeographic Information System同意向GBIF註冊成為資料發佈者。

關鍵字

Occurrence

聯絡資訊

資源建立者:

Kevin Mackay
Marine Database Manager
NIWA Private Bag 14-901 6241 Wellington New Zealand NZ

可回覆此資源相關問題者:

David Fisher
Principal Technician - Fisheries
NIWA Private Bag 14-901 6241 Wellington New Zealand NZ

元數據填寫者:

Kevin Mackay
Marine Database Manager
NIWA Private Bag 14-901 6241 Wellington New Zealand NZ

與此資源的相關者:

使用者
Kevin Mackay

地理涵蓋範圍

New Zealand region

界定座標範圍 緯度南界 經度西界 [-57, -176.3], 緯度北界 經度東界 [-24, 157]

時間涵蓋範圍

起始日期 2008-01-01

取樣方法

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).

研究範圍 Fisheries research trawls since 2008 over the New Zealand EEZ area
品質控管 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.

方法步驟描述:

  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.

額外的元數據

marine, harvested by iOBIS

替代的識別碼 421890f7-e909-40ed-a573-b1c9529a55fa
https://nzobisipt.niwa.co.nz/resource?r=trawl