The Ecology and Biogeography of Heard Island Marine Benthos 1987/88

Data as a DwC-A file	download 119 records in English (11 KB) - Update frequency: unknown
Metadata as an EML file	download in English (11 KB)
Metadata as an RTF file	download in English (10 KB)

Description

Collections of 23 macroinvertebrate taxa associated with Durvillaea antarctica holdfasts and 58 invertebrate taxa associated with artificial substrata collectors are described from shallow-water and intertidal habitats at Heard Island. The fauna sampled possessed strong biogeographic affinities with the Kerguelen Island fauna and, to a slightly lesser extent, the fauna recorded at Macquarie Island. The fauna possessed negligible affinity with the Antarctic. Experiments involving the offshore tethering of Durvillaea antarctica holdfasts indicated epifaunal invertebrates rapidly abandoned detached holdfasts, but that the few species surviving after one day can probably survive long periods adrift. The fields in this dataset are: Taxon (species) Distribution Locality Date ControlQuality: A preliminary trial indicated that whole plants attached to lines created too much drag for anchors, hence holdfasts were separated from fronds and tethered at the sea surface to anchored buoys. This process was undertaken on 20 November 1987, with four of the tethered holdfasts collected for faunal analysis the next day. Two holdfasts were lost to wave action during the study, with the remaining two holdfasts collected after 93 days afloat. Holdfasts (4 replicates) were also collected as faunal controls from the shore at the start (20 November 1987) and end of the experiment (21 February 1988). In order to assess whether recruitment was occurring on tethered holdfasts, four replicate holdfasts were defaunated by submersion in freshwater for 10 minutes at the start of the experiment before offshore tethering (see Edgar 1992). Two of these recruitment control holdfasts were lost through wave action and two collected at the end of the experiment. On collection, all holdfasts were carefully placed into plastic bags and formalin added. Animals were later separated from holdfasts in the laboratory by pouring the washed contents of the bags through a 0.5 mm sieve after the holdfast had been broken apart, and animals retained by the sieve counted under a binocular microscope using the same methods as for artificial algal habitats. Note from the AADC, 2018-08-02: The original datasheet was reformatted to fit OBIS/GBFI/IPT Biodiversity.AQ standards. The new datasheet "MacrofaunaDurvillaeaHoldfast87_88.csv" provides the data of fauna associated with holdfast of Durvillaea antarctica from Heard Island, from artificial algal habitats. This new data sheet contains datasetID, occurrenceID, continentCode, island, locationID, decimal latitude, decimal longitude, event date, organismQuantity, organismQunatityType, basisOfRecord, occurrenceStatus, associatedTaxa and associatedReference. It's also provides species identification to the lowest taxonomical rank that could be determined. Species names were matched in WoRMS (World Register of Marine Species).

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 119 records.

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

Edgar, G. (2000, updated 2018) The Ecology and Biogeography of Heard Island Marine Benthos

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is Australian Antarctic Data Centre. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: dc9b4f81-f75e-44e8-bb19-845e665ccb81. Australian Antarctic Data Centre publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Atlas of Living Australia.

Keywords

Occurrence

External data

The resource data is also available in other formats

Point of truth metadata record	https://data.aad.gov.au/metadata/records/ASAC_254 ASCII DIF 9.9

Contacts

GRAHAM EDGAR

Point Of Contact

INVESTIGATOR

Institute for Marine and Antarctic Studies Private Bag 49

7001 Hobart

Tasmania

GRAHAM EDGAR

Point Of Contact

DIF AUTHOR

Institute for Marine and Antarctic Studies Private Bag 49

7001 Hobart

Tasmania

GRAHAM EDGAR

Point Of Contact

TECHNICAL CONTACT

Institute for Marine and Antarctic Studies Private Bag 49

7001 Hobart

Tasmania

DATA OFFICER AADC

Distributor

DATA CENTER CONTACT

Australian Antarctic Data Centre, Australia

Australian Antarctic Division 203 Channel Highway

7050 Kingston

Tasmania

metadata@aad.gov.au

Geographic Coverage

OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN > HEARD AND MCDONALD ISLANDS OCEAN > SOUTHERN OCEAN > HEARD AND MCDONALD ISLANDS > Atlas Cove OCEAN > SOUTHERN OCEAN > HEARD AND MCDONALD ISLANDS > Corinthian Bay

Bounding Coordinates	South West [-53.21, 73.24], North East [-52.95, 73.9]

Taxonomic Coverage

23 specie of macroinvertebrate, taxa associated with Durvillea antarctica, were identified

Phylum	Cnidaria, Nematoda, Platyhelminthes, Nemertea, Arthropoda, Echinodermata, Chordata
Class	Polychaeta, Gastropoda, Bivalvia

Temporal Coverage

Start Date / End Date	1987-11-20 / 1988-02-21

Bibliographic Citations

Edgar, G.J. and H.R. Burton (2000) The biogeography of shallow-water macrofauna at Heard Island. Papers and Proceedings of the Royal Society of Tasmania. 133(2), 23-26

Additional Metadata

Alternative Identifiers	dc9b4f81-f75e-44e8-bb19-845e665ccb81
	https://data.aad.gov.au/ipt/resource?r=durvillaea_fauna