Investigation of School and Gummy Shark Nursery Areas in South East Tasmania, Australia, 1991-1997

Bruce Baker, CSIRO Oceans and Atmosphere

Dataset credit

OBIS and OBIS Australia

Contacts

RoleNameOrganization 
Primary contact Bruce Baker CSIRO Oceans and Atmosphere N/A
Secondary contact Dave Watts CSIRO Oceans and Atmosphere

Citation

Baker, B. 2020. Investigation of School and Gummy Shark Nursery Areas in South East Tasmania, Australia, 1991-1997. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/103152465) on yyyy-mm-dd and originated from OBIS (https://obis.org/dataset/6d58ae08-4657-42bc-99fc-61e69278db13)

Abstract

School shark pupping areas in inshore waters of Tasmania identified by Olsen in the 1940s and 1950s were re-sampled using gillnets & longlines from 1991-97.
Catch data includes a wide variety of sharks, rays and teleosts species, the most numerous being: Squalus megalops, Platycephalus bassensis, Squalus acanthias, Pseudophycis bachus, Aldrichetta forsteri, Mustelus antarticus, Callorhynchus milii, Galeorhinus galeus, Tracurus declivis, Cephaloscyllium laticeps, Neosebastes scorpaenoides, Platycephalus richardsoni, and Sillago bassensis. The fish catch data was taken from school shark nursery areas in Tasmania and Victoria, this study is split into 2 portions, first a 12 month study (91-92), followed by a multi-year study (92-97).

Purpose

N/A

Supplemental information

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/6d58ae08-4657-42bc-99fc-61e69278db13
Data Provider's dataset page:
http://ogc-act.csiro.au/ipt/resource?r=csiro_gummy_sharks

References

Attributes

Overview

This section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.

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
oidInternal ID
idRecord ID
dataset_idDataset ID
scientificnameScientific name
vernacularnameVernacular name
aphiaidAphia ID
taxonranktaxononic rank
individualcountGroup size / individual count
eventdateEvent date (precision varies)
eventtimeEvent time
decimallatitudeLatitude in decimal degrees
decimallongitudeLongitude in decimal degrees
coordinateprecisionCoordinate precision
catalognumberCatalog number
collectioncodeCollection code
occurrencestatusOccurrence status
basisofrecordBasis of record (HumanObservation / MachineObservation)
modifiedDate/time the record was modified
node_idNode ID
occurrenceidOccurrence ID
occurrenceremarksOccurrence remarks
eventidEvent ID
institutioncodeInstitution code
lifestageLife stage
sexGender of the animal if known
speciesSpecies by provider
datasetidDataset ID by provider
countryCountry
localityLocation of ocean
waterbodyDetails of ocean
droppedFlag indicating the record was dropped (always false)
absenceFlag indicating the record represents the absence of the species (always false)
marineFlag indicating the record is for marine life (always true)
OBIS-SEAMAP ID103152465
Seabirds0
Marine mammals0
Sea turtles0
Rays and sharks1,830
Other species0
Non spatial0
Non species0
Total1,830
Date, Begin1991-10-16
Date, End1997-03-20
Temporal prec.111000
Latitude-43.29 - -41.19
Longitude146.57 - 148.21
Coord. prec.6 decimal digits
PlatformVarious
Data typeAnimal sighting
EffortN/A
Traveled (km)0
0
Contr. throughiOBIS
Registered2020-06-30
Updated2021-02-05
StatusPublished
Sharing policy CC-BY (All)
Also available in None
See metadata in static HTML
See metadata in FGDC XML
See download history / statistics