Biomass and productivity of seagrass communities in Exmouth Gulf, Western Australia
Maintenance and Update Frequency: notPlanned Statement: Statement: Percent cover categories:0 = bare substratum1 = 2 = 5-20%3 = 20-50%4 = > 50%The method used to tag the seagrass is described in:Kirkman H and Reid DD (1979) A study of the role of the seagrass Posidonia australis in the carbon bud...
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Online Access: | https://researchdata.edu.au/biomass-productivity-seagrass-western-australia/677499 |
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ftands:oai:ands.org.au::677499 2024-09-15T18:38:49+00:00 Biomass and productivity of seagrass communities in Exmouth Gulf, Western Australia AIMS Data Centre (distributor) AIMS Data Centre (pointOfContact) Australian Institute of Marine Science (AIMS) (hasAssociationWith) Data Manager, AIMS Data Centre (pointOfContact) Schaffelke, Britta, Dr (hasPrincipalInvestigator) Spatial: westlimit=114.083333; southlimit=-22.416667; eastlimit=114.583333; northlimit=-21.916667 https://researchdata.edu.au/biomass-productivity-seagrass-western-australia/677499 unknown Australian Institute of Marine Science https://researchdata.edu.au/biomass-productivity-seagrass-western-australia/677499 272b4e4b-2fdd-4945-be5c-0565f6b5d6dd Australian Institute of Marine Science (AIMS) oceans dataset ftands 2024-08-19T23:59:40Z Maintenance and Update Frequency: notPlanned Statement: Statement: Percent cover categories:0 = bare substratum1 = 2 = 5-20%3 = 20-50%4 = > 50%The method used to tag the seagrass is described in:Kirkman H and Reid DD (1979) A study of the role of the seagrass Posidonia australis in the carbon budget of an estuary. Aquat. Bot. 7:173-183.Samples were analysed for total carbon and nitrogen by high temperature combustion chemo-luminescence (Antek analyser) with an infrared CO2 detector (Beckman) in series. Credit Schaffelke, Britta, Dr (Principal Investigator) In August/September 1995, visual surveys of seagrass abundance were undertaken along 47 transects, located along the eastern and western coasts of Exmouth Gulf. Transects extended from the shoreward to the seaward border of the zone vegetated with macrophytes. Spot checks were made at approximately every 10m to 20m along each transect and the percent cover and type of vegetation (identified to genus, where possible) were recorded. When there was taxonomic uncertainty, voucher specimens were taken for later identification.Destructive sampling was carried out along transects at three sites: Tent Island (2 transects), Simpson Island (2 transects) and Exmouth Town (3 transects). Five or ten 0.25m² quadrats were randomly placed along each 50m transect. Quadrats were photographed, the percent cover of macrophytes was estimated and the density of seagrass was measured. From each site, the species composition of 5 Cymodocea samples was quantified.All biomass was removed from each quadrat including seagrass roots and rhizomes to a depth of 20cm. Below ground material from Thalassodendron ciliatum was not collected. After drying samples for 48 hours at 70°C, epiphytes were removed and the remaining sample was ashed for 18 hours at 450°C and the dry weight determined. Subsamples were analysed for total carbon and nitrogen.At the three sites, all distal shoots of Cymodocea serrulata occurring along a 20m transect were tagged and at Exmouth, 25 shoots of ... Dataset Tent Island Research Data Australia (Australian National Data Service - ANDS) |
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Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
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unknown |
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oceans |
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oceans Biomass and productivity of seagrass communities in Exmouth Gulf, Western Australia |
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oceans |
description |
Maintenance and Update Frequency: notPlanned Statement: Statement: Percent cover categories:0 = bare substratum1 = 2 = 5-20%3 = 20-50%4 = > 50%The method used to tag the seagrass is described in:Kirkman H and Reid DD (1979) A study of the role of the seagrass Posidonia australis in the carbon budget of an estuary. Aquat. Bot. 7:173-183.Samples were analysed for total carbon and nitrogen by high temperature combustion chemo-luminescence (Antek analyser) with an infrared CO2 detector (Beckman) in series. Credit Schaffelke, Britta, Dr (Principal Investigator) In August/September 1995, visual surveys of seagrass abundance were undertaken along 47 transects, located along the eastern and western coasts of Exmouth Gulf. Transects extended from the shoreward to the seaward border of the zone vegetated with macrophytes. Spot checks were made at approximately every 10m to 20m along each transect and the percent cover and type of vegetation (identified to genus, where possible) were recorded. When there was taxonomic uncertainty, voucher specimens were taken for later identification.Destructive sampling was carried out along transects at three sites: Tent Island (2 transects), Simpson Island (2 transects) and Exmouth Town (3 transects). Five or ten 0.25m² quadrats were randomly placed along each 50m transect. Quadrats were photographed, the percent cover of macrophytes was estimated and the density of seagrass was measured. From each site, the species composition of 5 Cymodocea samples was quantified.All biomass was removed from each quadrat including seagrass roots and rhizomes to a depth of 20cm. Below ground material from Thalassodendron ciliatum was not collected. After drying samples for 48 hours at 70°C, epiphytes were removed and the remaining sample was ashed for 18 hours at 450°C and the dry weight determined. Subsamples were analysed for total carbon and nitrogen.At the three sites, all distal shoots of Cymodocea serrulata occurring along a 20m transect were tagged and at Exmouth, 25 shoots of ... |
author2 |
AIMS Data Centre (distributor) AIMS Data Centre (pointOfContact) Australian Institute of Marine Science (AIMS) (hasAssociationWith) Data Manager, AIMS Data Centre (pointOfContact) Schaffelke, Britta, Dr (hasPrincipalInvestigator) |
format |
Dataset |
title |
Biomass and productivity of seagrass communities in Exmouth Gulf, Western Australia |
title_short |
Biomass and productivity of seagrass communities in Exmouth Gulf, Western Australia |
title_full |
Biomass and productivity of seagrass communities in Exmouth Gulf, Western Australia |
title_fullStr |
Biomass and productivity of seagrass communities in Exmouth Gulf, Western Australia |
title_full_unstemmed |
Biomass and productivity of seagrass communities in Exmouth Gulf, Western Australia |
title_sort |
biomass and productivity of seagrass communities in exmouth gulf, western australia |
publisher |
Australian Institute of Marine Science |
url |
https://researchdata.edu.au/biomass-productivity-seagrass-western-australia/677499 |
op_coverage |
Spatial: westlimit=114.083333; southlimit=-22.416667; eastlimit=114.583333; northlimit=-21.916667 |
genre |
Tent Island |
genre_facet |
Tent Island |
op_source |
Australian Institute of Marine Science (AIMS) |
op_relation |
https://researchdata.edu.au/biomass-productivity-seagrass-western-australia/677499 272b4e4b-2fdd-4945-be5c-0565f6b5d6dd |
_version_ |
1810483228412215296 |