Monthly catch of tuna, tuna-like and shark species in the Indian Ocean (1952-2015) by longliners aggregated by 5° squares (IOTC level 0)

This dataset lists catch of tuna, tuna-like and shark species from the Indian Ocean Tuna Commission (IOTC) by longliners from 1952 to 2015. Catches are stratified by year, month, species, fishing gear, vessel flag reporting country, area (mainly 5° squares). It corresponds to the catch part of the IOTC catch-and-effort (task2) dataset.

This dataset was downloaded on the IOTC website. It was then restructured to be in line with the Sardara database structure (columns normalization, names, etc.). However the content of data and the code lists were kept exactly as their are available in the source dataset.

The description below (caracteristics, specific issues and problems that need to be taken into account) is extracted from the IOTC web page where the dataset has been downloaded.

Caracteristics, specific issues and problems that need to be taken into account :

Catches and effort are not available for all Nominal catches strata. When recorded, the catches in these datasets might represent the total catches of the species in the year for the fleet and gear concerned or represent simply a sample of those. These data are considered to be in the public domain, provided that the catch of no individual vessel can be identified within a time/area stratum. In cases when an individual vessel can be identified, the data are aggregated prior to release by time, area or flag to preclude such identification, and will then be in the public domain. Catch-and-effort and length-frequency data grouped at a finer level of time-area stratification are only released with written authorization from the sources of the data and are subject to a number of constraints destined to preserve confidentiality.

Dataset extent

Map data © OpenStreetMap contributors
Tiles by MapBox
Tags
Data and Resources
To access the resources you must log in
  • indian_ocean_catch_ll_1952_11_01_2016_01_01_tun ...

    Download data (ZIP archive containing CSV file + metadata) from the i-Marine...

    The resource: 'indian_ocean_catch_ll_1952_ ...' is not accessible as guest user. You must login to access it!
  • data: CSV from WFSWFS

    Download data (CSV) from WFS (Web Feature Service) - see service/operation...

    The resource: 'data: CSV from WFS' is not accessible as guest user. You must login to access it!
  • data (aggregated): CSV from WFSWFS

    Download aggregated data (CSV) from WFS (Web Feature Service) - see...

    The resource: 'data (aggregated): CSV ...' is not accessible as guest user. You must login to access it!
  • tunaatlas_iotc:indian_ocean_catch_ll_tunaatlasI ...WMS

    Visualize maps from WMS (Web Map Service) - see service/operation metadata...

    The resource: 'tunaatlas_iotc:indian_ocean ...' is not accessible as guest user. You must login to access it!
  • tunaatlas_iotc:indian_ocean_catch_ll_tunaatlasI ...WMS

    Visualize aggregated maps from WMS (Web Map Service) - see service/operation...

    The resource: 'tunaatlas_iotc:indian_ocean ...' is not accessible as guest user. You must login to access it!
  • The code (R or SQL) used to generate this dataset

    The code (R or SQL) which has been used to generate this dataset can be...

    The resource: 'The code (R or SQL) used ...' is not accessible as guest user. You must login to access it!
  • Documentation: metadata and data dictionnary ...PDF

    This document describes the data dictionnary (vocabulary used for the tables...

    The resource: 'Documentation: metadata ...' is not accessible as guest user. You must login to access it!
  • Tuna Atlas Website

    Get more information on the Tuna Atlas project. The Tuna Atlas Website is...

    The resource: 'Tuna Atlas Website' is not accessible as guest user. You must login to access it!
  • OGC metadata: HTML view in Geonetwork

    Visualize metadata HTML view in Geonetwork

    The resource: 'OGC metadata: HTML view in ...' is not accessible as guest user. You must login to access it!
  • OGC metadata: XML from CSWcsw

    Visualize metadata XML from CSW (Catalogue Service for the Web)

    The resource: 'OGC metadata: XML from CSW' is not accessible as guest user. You must login to access it!
  • indian_ocean_catch_ll_tunaatlasIOTC_level0_data ...

    Data Structure Definition (ISO 19110)

    The resource: 'indian_ocean_catch_ll_tunaa ...' is not accessible as guest user. You must login to access it!
Additional Info
Field Value
access_constraints []
bbox-east-long 150
bbox-north-lat 30
bbox-south-lat -60
bbox-west-long 20
contact-email ird@ird.fr
coupled-resource
[]
dataset-reference-date
[{"type": "revision", "value": "2018-02-06"}]
frequency-of-update annually
graphic-preview-description Thumbnail from WMS / Geoserver
graphic-preview-file https://geoserver-tunaatlas.d4science.org/geoserver/wms?service=WMS&version=1.3.0&request=GetMap&layers=tunaatlas:bathymetry,tunaatlas_iotc:indian_ocean_catch_ll_tunaatlasIOTC_level0_aggregated,tunaatlas:continent&styles=&bbox=-60,20,30,150&width=768&height=768&srs=EPSG:4326&format=image/png
graphic-preview-type WWW:LINK-1.0-http--link
GUID indian_ocean_catch_ll_tunaatlasIOTC_level0
licence []
metadata-date 2018-02-06T16:20:25
metadata-language eng
point_of_contact 1 IRD -, ird@ird.fr
point_of_contact 2 Fiorellato Fabio, fabio.fiorellato@iotc.org
progress tentative
resource-type dataset
responsible-party
[{"name": "Institut de recherche pour le d\u00e9veloppement (IRD)", "roles": ["publisher"]}, {"name": "Indian Ocean Tuna Commission (IOTC)", "roles": ["originator"]}]
spatial {"type": "Polygon", "coordinates": [[[20.0, -60.0], [150.0, -60.0], [150.0, 30.0], [20.0, 30.0], [20.0, -60.0]]]}
spatial-data-service-type OGC Web-Service
spatial-reference-system
spatial_harvester true
system:type Dataset
temporal-extent-begin 1952-11-01T00:00:00
temporal-extent-end 2016-01-01T00:00:00
topic_category
Management Info
Field Value
Author Indian Ocean Tuna Commission (IOTC),Observatory of Exploited Tropical Pelagic Ecosystems, MARBEC Research Unit 248, IRD,IRD, UMR MARBEC & COI,FAO - Fisheries and Aquaculture Department (FI). Fisheries and Aquaculture Policy and Resources Division (FIA)
Maintainer bluebridge_catalogue_one
Last Updated 15 September 2020, 14:53 (CEST)
Created 15 September 2020, 14:53 (CEST)