Stock assessment of Macrocystis pyrifera beds at varying locations on Tasmania's south and east coasts 1950-1953, published 1954

Surveys were conducted as part of an assessment of the Macrocystis pyrifera (Linnaeus) C. Agardh 1820 beds on the east coast of Tasmania by the Commonwealth Scientific and Industry Research Organization (CSIRO) Division of Fisheries seaweed program in the early 1950's. Surveys were conducted because of interest in the Macrocystis beds as a source of alginates. Surveys were done between 1950 and mid 1953. The paper was published in 1954.

Simple

Identification info

Date (Creation)
2005-01-10
Date (Revision)
2005-01-10T00:00:00
Status
Completed

Point of contact

SeaCare Inc - Craig Sanderson
PO Box 878
Sandy Bay
Tasmania
7004
Australia
Spatial representation type
Vector
Topic category
  • Biota

Extent

N
S
E
W


Temporal extent

Time period
1950-01-01 1953-12-31
Keywords (Taxon)
  • Macrocystis pyrifera
Global Change Master Directory (GCMD) Earth Science Keywords Version 8.0
Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
Keywords (Theme)
  • BOUNDARIES Biophysical
  • ECOLOGY Community
  • ECOLOGY Habitat
  • FISHERIES Marine
  • FLORA Native
  • MARINE Biology
  • MARINE Coasts
  • MARINE Reefs
  • VEGETATION Floristic
  • VEGETATION Structural
Keywords (Discipline)
  • Temperate Reef
AODN Platform Vocabulary
AODN Discovery Parameter Vocabulary

Resource constraints

Classification
Unclassified

Resource constraints

Linkage
http://i.creativecommons.org/l/by/3.0/au/88x31.png

License Graphic

Title
Creative Commons Attribution 3.0 Australia License


>

Website
http://creativecommons.org/licenses/by/3.0/au/

License Text

Other constraints
The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).
Language
English
Character encoding
UTF8

Content Information

Content type
Physical measurement
Description
Presence and of Macrocystis surface canopy

Identifier

Code
Biotic taxonomic identification

Distribution Information

OnLine resource
SHAPE-ZIP

DATA ACCESS - Macrocystis stock assessment (areal extent) 1953 in Shapefile format

OnLine resource
imas:Macrocystis_areal_extent_1953

MAP - Macrocystis stock assessment (areal extent) 1950-53

OnLine resource
View Dataset in ListMap

OnLine resource
View Metadata in ListData

Resource lineage

Statement
Actual surveys not conducted by the author of the paper (AB Cribb). Description of technique for surveys not included in the paper. Presumably, the mapping was done from a boat using line of sight. Craig Sanderson scanned and registered copies of the maps taken from the published papers and digitised the outlines of the beds as presented in the paper using Mapinfo.
Hierarchy level
Dataset
Description
Position Accuracy: Difficult to gauge the accuracy of the surveys but there is reason to doubt some of the results. For example: 1. In some areas, there have been no Macrocystis beds recorded since; 2. in others the water would be too deep (>30m); or 3. the substrate is predominantly sand which would not support Macrocystis. Most inaccuracy is likely to be in the width of the beds, and is probably +/- 50%. Length of the beds along the coasts is probably accurate to within +/-5%. Attribute Accuracy: Presence absence data - no attributes. Logical Consistency: See completeness. Completeness: The survey ostensibly included the entire Tasmanian East Coast, however sections of the Bruny Island and Tasman and Forestier Peninsula's have not been included eg. Fortesque Bay and Lagoon Bay and up around the Gardens areas which might be expected to carry significant Macrocystis beds. Fortesque Bay and Lagoon Bay have not known to have been without Macrocystis in recent history (last 15-20 years) and likely to have definitely had some at the time of the survey.
Hierarchy level
Dataset

Platform

Identifier

Code
research aeroplane

Metadata

Metadata identifier
85dfc1ea-f785-4b2a-93f2-c11fde5b6ec0

Language
English
Character encoding
UTF8

Point of contact

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

Type of resource

Resource scope
Dataset
Metadata linkage
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/85dfc1ea-f785-4b2a-93f2-c11fde5b6ec0

Point of truth URL of this metadata record

Date info (Creation)
2020-11-17T11:48:30
Date info (Revision)
2020-11-17T11:48:30

Metadata standard

Title
ISO 19115-3:2018
 
 

Overviews

thumbnail
large_thumbnail

Spatial extent

N
S
E
W


Keywords

BOUNDARIES Biophysical ECOLOGY Community ECOLOGY Habitat FISHERIES Marine FLORA Native MARINE Biology MARINE Coasts MARINE Reefs VEGETATION Floristic VEGETATION Structural
AODN Discovery Parameter Vocabulary
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 | MARINE HABITAT

Provided by

Share on social sites

Access to the record in catalogue

Associated resources

Not available