Tasmanian Marine Molluscs Observational Records (2003-2017)

OBIS and OBIS Australia

The Molluscs of Tasmania http://www.molluscsoftasmania.org.au/) contains information on all the marine mollusc species that are currently recognised as occurring in Tasmanian waters by the author of these pages, Simon Grove. This project grew out of the 2006 publication of A systematic list of the marine molluscs of Tasmania, by Simon Grove, Ron Kershaw, Brian Smith and Elizabeth Turner. Because molluscan taxonomy is in a continual state of flux, and because our understanding of what species occur in Tasmania is advancing all the time, a paper publication on this subject rapidly becomes outdated as new species are discovered, new names and taxonomic relationships are introduced and old ones invalidated.
Nearly all records from this provider are from beached material ('death assemblages'), and do not necessarily indicate the presence of live animals at the recorded locality. Images and other distribution records are available at the Molluscs of Tasmania website.
This data set of 20,000 records sourced from Simon Groves, September 2017. Taxa (463 species out of 473) have been matched to the World Register of Marine Species.

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/5e5197d2-8a17-49c3-9197-758091a2cc48
Data Provider's dataset page:
http://ogc-act.csiro.au/ipt/resource?r=tasmanian_molluscs

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