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

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Descrição

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).

Registros de Dados

Os dados deste recurso de ocorrência foram publicados como um Darwin Core Archive (DwC-A), que é o formato padronizado para compartilhamento de dados de biodiversidade como um conjunto de uma ou mais tabelas de dados. A tabela de dados do núcleo contém 119 registros.

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.

Versões

A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.

Como citar

Pesquisadores deveriam citar esta obra da seguinte maneira:

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

Direitos

Pesquisadores devem respeitar a seguinte declaração de direitos:

O editor e o detentor dos direitos deste trabalho é Australian Antarctic Data Centre. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: dc9b4f81-f75e-44e8-bb19-845e665ccb81. Australian Antarctic Data Centre publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por Atlas of Living Australia.

Palavras-chave

Occurrence

Dados externos

Os dados de recurso também estão disponíveis em outros formatos

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

Contatos

GRAHAM EDGAR

Ponto De Contato

INVESTIGATOR

Institute for Marine and Antarctic Studies Private Bag 49

7001 Hobart

Tasmania

GRAHAM EDGAR

Ponto De Contato

DIF AUTHOR

Institute for Marine and Antarctic Studies Private Bag 49

7001 Hobart

Tasmania

GRAHAM EDGAR

Ponto De Contato

TECHNICAL CONTACT

Institute for Marine and Antarctic Studies Private Bag 49

7001 Hobart

Tasmania

DATA OFFICER AADC

Distribuidor

DATA CENTER CONTACT

Australian Antarctic Data Centre, Australia

Australian Antarctic Division 203 Channel Highway

7050 Kingston

Tasmania

metadata@aad.gov.au

Cobertura Geográfica

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

Coordenadas delimitadoras	Sul Oeste [-53,21, 73,24], Norte Leste [-52,95, 73,9]

Cobertura Taxonômica

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

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

Cobertura Temporal

Data Inicial / Data final	1987-11-20 / 1988-02-21

Citações bibliográficas

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

Metadados Adicionais

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