NOTE: Metadata has not yet been vetted.

DATASET

  Title

Sealion Breeding and Haul-out Islands of the Recherche Archipelago

  Custodian

 Department of Conservation and Land Management (CALM)

  Jurisdiction

 Western Australia

DESCRIPTION

  Abstract

This dataset consists of points representing breeding and haul-out islands for Sealions within the proposed study area for the proposed Recherche Archipelago marine conservation reserve off the southern coast of Western Australia.  The points have been attributed with information relating to wildlife as per the naming standards for standardised models for MIS datasets (T:\144-Marine Conservation Branch\GIS Data\MIS\System\Structure_modules\dataset_models\standard_models.htm).

The dataset has been developed as part of CALM Marine Conservation Branch's resource assessment to assist in the marine reserve implementation process for the proposed Recherche Archipelago marine conservation reserve.  This dataset is complemented by other fauna datasets within the region including furseals, seabirds and whales.

Points were created and attributed by the following methods;
i)  data was collated from a CALM field survey conducted by N. Gales in 2000 and in a literature review by Kevin Bancroft of the existing ecological information for the Recherche Archipelago.

ii)  a dataset for locations of offshore sealion breeding/haul-out features eg. islands and rocks were generated and attributed by Kevin Bancroft with the ecological information from the literature review and survey data.

iii)  this dataset was reviewed by Bernie Haberley, Klaus Teiderman and Fud Mckenzie and modifications/additions were marked up on the hardcopy map.

iv)  the wildlife modifications/additions were incorporated into the dataset by Ben Lamb in Feb 2002 by generating centroids of polygons created from the DOLA coastline dated 28 Feb 2001 and attributing the appropriate points with the wildlife information on the hardcopy map.

  Search Word(s)

 

Geographic Extent Name(s) 

Eucla (EUC) and WA South Coast (WSC) IMCRA Regions

DATA CURRENCY

  Begin Date

 1/10/2001

  End Date

 Ongoing

DATASET STATUS

  Progress

 In Progress

  Maintenance & Update Frequency

As required

ACCESS

  Stored Data Format

DIGITAL ArcView shapefile, Geographic, Geocentric Datum of Australian  1994 (GDA94).
NONDIGITAL Paper base maps containing raw information 

  Available Format Type

 DIGITAL ArcView 3.2 shapefile

  Access Constraint

Data available for external use subject to transfer fee and license conditions.
Data is not to be distributed without authorisation from CALM. 
Contact CALM's database administrator for further details.

DATA QUALITY

  Lineage

1. Relevant experts/papers/surveys were consulted to delineate locations of wildlife activity. See attribute SOURCE_A for details.

2.  The collated information was then input into Arcview by manually digitising on screen or entering the coordinate of the point from the field survey results and attributed accordingly.  This was performed by Kevin Bancroft at various input scales.

3.  Hardcopy maps containing the digitised data along with coastline, broadscale bathymetry  (10m, 20m, 50m, 100m, 200m, 500m, 1000m isobaths), and a graticule were produced at approximately 1:350,000.  These maps were sent to Bernie Haberley of CALM for review and additions in Jan 2002.

4.  The DOLA coastline dated 28 Feb 2001 was modified to create a set of polygons to represent the mainland, islands and rocks of the region.  This was done by clipping the WA coastline dataset to the region and to high or mean high water mark.  Using the union function, a multipart shape was created.  This was then made into a series of single part shapes using the XTools convert multipart shape functionality.  A clean and build algorithm was then run to construct polygons that were topologically consistant.  Centroids were generated for the polygons using XTools and any points that had not been marked up on the hardcopy map were deleted.  These points were then used as the basis for the addiional locations of the sealion breeding or haul-out islands and cut and pasted into the existing dataset created by Kevin Bancroft.

5.  The attribute table of the combined dataset was setup as per the 'Standardised Models for the MIS datasets' (L:\MIS\System\Structure_modules\dataset_models\standard_models.htm).  The attribute information for the new points was incorporated and other fields were populated as required. 

6.  Data datum transformed from AGD84 to GDA94 using the change datum functionality of the extension 'CALM Added Functionality v2000' in Arcview3.2.

 Positional Accuracy

Due to the nature of the study, positional accuracy should be considered as approximate only as these points represent an island on which the activity takes place. The data has been collected from information provided by experts and a literature review. Resource and time constraints prevented more detailed survey work being undertaken. While every endeavour has been made to faithfully record information, delineation of areas in which the wildlife is distributed may not be comprehensive. 

Positional inaccuracies may also have occurred due to; 
i) the detail of base maps being sufficient for only broad scale delineation of wildlife distribution/activity,
ii) some information being more precise in it's definition of the extent of location than others.

  Attribute Accuracy

Due to the nature of the study, attribute accuracy should be considered as approximate only. The data has been collected from anecdotal information provided by experts and a literature review. Resource and time constraints prevented more detailed survey work being undertaken. While every endeavour has been made to faithfully record information, the attributes of the wildlife distribution may not be comprehensive.

  Logical Consistency

Attribute names have been checked and validated for consistency across all wildlife datasets created for the implementation of the proposed Recherche Archipeligo marine conservation reserve.

Attribute values have been checked and validated for consistency, and checked for logic in relation to attribute names. All attributes that require values have had values assigned.

The shapefile has been compiled carefully to avoid overlaps or duplication of points.

Completeness

The dataset is complete as at the date of this metadata statement. The dataset will be upgraded as priorities, time and resources permit. 
Further work needs to be undertaken on delineation and ground-truthing of many areas of wildlife distribution/activity.

CONTACT INFORMATION

  Contact Organisation

 Department of Conservation and Land Management, Marine Conservation Branch

  Contact Position

 Marine GIS Co-ordinator

  Mail Address 1

 47 Henry Street

  Mail Address 2

  Suburb or Place or Locality

 Fremantle

  State or Locality 2

 WA

  Country

 Australia

  Postcode

 6160

  Telephone

 08 9432 5109

  Facsimile

 08 9430 5408

  Electronic Mail Address

 rayl@calm.wa.gov.au

METADATA DATE

  Metadata Date

 08/03/2002

ADDITIONAL METADATA

  Additional Metadata

For further information on  refer to:
i)  Lee, S. & Bancroft, K.P. (2001). Review of existing ecological information for the proposed Recherche Archipelago marine cosnervation reserve.
Literature Review MRI/WSC,EUC/SIN,RAR-51/2001. 
Marine Conservation Branch, Department of Conservation and Land Managment, 
Perth, Western Australia.

ii)  Gales, N. J., B. Haberley, et al. (2000). "Changes in the abundance of New Zealand fur seals, Arctocephalus forsteri, in Western Australia." Wildlife Research 27(2): 165-168.