CSIRO, North West Shelf Demersal Marine Resources Study (1982-1992)

OBIS and OBIS Australia

The North West Shelf study was set up to examine the population dynamics and biology of demersal marine resources of the North West Shelf of Australia, in relation to their physical, chemical and biological environment. The first phase of the study comprised 10 cruises by the vessel Soela between 1982 and 1984 to investigate aspects of the ecosystem, followed by an experimental management phase from 1985 to 1992 during which parts of the fishery were closed and the resulting changes monitored. Data gathered during the study included the distribution, reproduction, diet, growth and mortality of the shelf ecosystem biota as well as information about the water column, sediments, and bottom environment. Over 1000 different fish species were recorded during the course of the study. Return cruises to the North West Shelf were made annually from 1986 to 1991 and also in 1995 and 1997.

N/A

This dataset was downloaded from OBIS (https://obis.org/). The records for only marine mammals, seabirds, sea turtles and rays and sharks were extracted. Records with no longitude/latitude or no date (eventDate) were excluded.
OBIS dataset page:
https://obis.org/dataset/553e6cd6-89a8-4482-b767-fb79a8d9c6ee
Data Provider's dataset page:
http://ogc-act.csiro.au/ipt/resource?r=csiro_nw_shelf_demersal

The dataset has been updated over time as outlined below. Each entry includes the version number, release date, type of change, and a short description.

Overview

Attributes are defined by OBIS.

Attributes described below represent those in the original dataset provided by the provider.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".

Attributes in dataset

Attribute (table column)	Description
oid	Internal ID
id	Record ID
dataset_id	Dataset ID
scientificname	Scientific name
vernacularname	Vernacular name
aphiaid	Aphia ID
taxonrank	taxononic rank
individualcount	Group size / individual count
eventdate	Event date (precision varies)
eventtime	Event time
decimallatitude	Latitude in decimal degrees
decimallongitude	Longitude in decimal degrees
coordinateprecision	Coordinate precision
catalognumber	Catalog number
collectioncode	Collection code
occurrencestatus	Occurrence status
basisofrecord	Basis of record (HumanObservation / MachineObservation)
modified	Date/time the record was modified
node_id	Node ID
occurrenceid	Occurrence ID
occurrenceremarks	Occurrence remarks
eventid	Event ID
institutioncode	Institution code
lifestage	Life stage
sex	Sex of the animal if known
species	Species by provider
datasetid	Dataset ID by provider
country	Country
locality	Location of ocean
waterbody	Details of ocean
dropped	Flag indicating the record was dropped (always false)
absence	Flag indicating the record represents the absence of the species (always false)
marine	Flag indicating the record is for marine life (always true)
obs_datetime
tprecision
on_land
date_in_future