Surveys of giant kelp (Macrocystis pyrifera) areal coverage on the South and East Coast of Tasmania, aggregated 1950-2019

This record describes an aggregated data product compiled from a number of different surveys of Macrocystis surface cover in Tasmanian waters, spanning 1950 to 2019.


Some surveys represent a statewide census of Macrocystis cover, while others are targeted surveys of smaller regions. Methodology and data quality lso varies between surveys. Please see linked metadata records for specific methodologies and quality statements applying to individual surveys.

Simple

Identification info

Date (Creation)
2020-10-01
Credit
Compiled by Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS).
Credit
SeaCare Inc.
Credit
CSIRO Division of Fisheries
Credit
Alginates (Australia) P/L
Credit
Craig Sanderson
Status
Completed

Custodian

SeaCare Inc - Craig Sanderson
110 Swanston St
New Town
TAS
7008
Australia
Topic category
  • Biota

Extent

N
S
E
W


Temporal extent

Time period
1953-01-01 2019-12-19
Keywords (Theme)
  • Climate change impact
Keywords (Taxon)
  • Macrocystis pyrifera
  • M. pyrifera
Global Change Master Directory (GCMD) Earth Science Keywords Version 8.0
Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
Keywords (Discipline)
  • Temperate Reef
AODN Platform Vocabulary
AODN Discovery Parameter Vocabulary

Resource constraints

Classification
Unclassified

Resource constraints

Use limitation
The data described in this record are hosted by the Institute for Marine and Antarctic Studies, University of Tasmania, on behalf of the Tasmanian Government.

Resource constraints

Linkage
https://i.creativecommons.org/l/by/4.0/88x31.png

License Graphic

Title
Creative Commons Attribution 4.0 International License


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Website
https://creativecommons.org/licenses/by/4.0/

License Text

Other constraints
Please see metadata records associated with individual surveys for specific citation information. All sources should be cited if using this temporally aggregated data product.
Language
English
Character encoding
UTF8

Content Information

Content type
Physical measurement
Description
Presence and density (where available) of Macrocystis surface canopy

Identifier

Code
Biotic taxonomic identification
Description
Presence and density (where available) of Macrocystis surface canopy

Identifier

Code
Abundance of biota

Distribution Information

OnLine resource
imas:Macrocystis_areal_extent_timeseries

MAP - Macrocystis areal extent aggregated 1950-2019

OnLine resource
SHAPE-ZIP

DATA ACCESS - Macrocystis areal extent aggregated 1950-2019 in Shapefile format

Resource lineage

Statement
Surveys of the surface (areal) extent of Macrocystis were conducted on multiple occasions using a range of methodologies (visual survey by boat, digitising of aerial photographs from light aircraft etc). Surveys were conducted in 1950-53, 1965, 1970-71, 1986, 1988, 1999, 2009 and 2019. Polygon data from all surveys was combined into a single data product (no spatial operations conducted). Note that attributes collected varies between surveys. Quality and spatial resolution generally improve with more recent surveys, but please see linked metadata records for specific methodologies and quality statements applying to individual surveys.
Hierarchy level
Dataset
Hierarchy level
Dataset

Platform

Identifier

Code
research aeroplane
Hierarchy level
Dataset

Platform

Identifier

Code
research vessel

Metadata

Metadata identifier
c0e0fef6-323b-4df2-9f4f-51c0ce7ac289

Language
English
Character encoding
UTF8

Point of contact

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - IMAS Data Manager

Type of resource

Resource scope
Dataset
Metadata linkage
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/c0e0fef6-323b-4df2-9f4f-51c0ce7ac289

Point of truth URL of this metadata record

Date info (Creation)
2020-11-17T11:48:47
Date info (Revision)
2020-11-17T11:48:47

Metadata standard

Title
ISO 19115-3:2018
 
 

Overviews

thumbnail
large_thumbnail

Spatial extent

N
S
E
W


Keywords

Climate change impact
AODN Discovery Parameter Vocabulary
Abundance of biota Biotic taxonomic identification
Global Change Master Directory (GCMD) Earth Science Keywords Version 8.0
EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | PLANTS | MACROALGAE (SEAWEEDS) EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | PLANTS | MACROALGAE (SEAWEEDS) | BROWN ALGAE EARTH SCIENCE | BIOSPHERE | AQUATIC ECOSYSTEMS | BENTHIC HABITAT EARTH SCIENCE | BIOSPHERE | AQUATIC ECOSYSTEMS | MARINE HABITAT EARTH SCIENCE | OCEANS | MARINE ENVIRONMENT MONITORING

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Associated resources

Not available