Data

WAMSI Node 1.1.3 - Rates of Ecological Processes (Controlled Feeding Experiments)

Australian Ocean Data Network
CSIRO O&A, Information & Data Centre (Point of contact) CSIRO Oceans & Atmosphere - Hobart (Associated with)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://marlin.csiro.au/geonetwork/srv/eng/catalog.search#/metadata/9176f73e-636f-4481-96f2-f43dc72fdb0a&rft.title=WAMSI Node 1.1.3 - Rates of Ecological Processes (Controlled Feeding Experiments)&rft.identifier=Anzlic Identifier: ANZCW0306008575&rft.publisher=Australian Ocean Data Network&rft.description=We attempted to asses the potential for using stable isotopes as a tool for rapid assessment of trophic interactions in a nearshore benthic ecosystem in Western Australia. The information gained from this experiment will help us to refine our use of stable isotopes, and contribute to efforts to develop sharper tools to achieve the ultimate goal of providing accurate characterisation of food webs, information sorely needed by managers of marine resources. A controlled laboratory scale feeding experiment with the gastropod, Turbo torquatus was conducted to assess the suitability of stable isotope analyses for diet inference. Seventy eight T.torquatus were fed enriched macroalgae (Ulva lactuca) to alter their natural isotopic profile (ä13C and ä15N) and then fed three locally occurring macroalgae (Ulva lactuca, Carpopeltis phyllophora, and Ecklonia radiate) over 17 weeks to assess how their isotopic profile reflected that of their diet. Feeding the enriched macroalgae (Ulva lactuca) to Turbo torquatus increased their carbon and nitrogen isotope ratios to very high levels after just 72 hours. Unfortunately even after 17 weeks of feeding on natural macroalgae (not enriched) the heavier isotope for both carbon and nitrogen was still retained in the muscle tissue of the gastropods. This suggests that the enrichment of Ulva lactuca appears to have been for too long or the concentration of 98% ä13C NaHCO3 and 98% ä15N NH4Cl was much too high.Progress Code: completedMaintenance and Update Frequency: notPlannedStatement: Data was collected in the lab then entered onto Microsoft Excel spreadsheets. The data has been explored and analysed using Excel and various statistical packages.&rft.creator=Anonymous&rft.date=2009&rft.coverage=westlimit=115; southlimit=-33; eastlimit=117; northlimit=-29&rft.coverage=westlimit=115; southlimit=-33; eastlimit=117; northlimit=-29&rft_rights=&rft_rights=Data is made available under a Creative Commons Attribution 4.0 International Licence (<a href=http://creativecommons.org/licenses/by/4.0/>http://creativecommons.org/licenses/by/4.0/</a>). Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was provided by CSIRO.&rft_subject=oceans&rft_subject=Earth Science | Biological Classification | Animals/Invertebrates&rft_subject=Earth Science | Biological Classification | Animals/Invertebrates | Mollusks&rft_subject=Earth Science | Biological Classification | Plants | Macroalgae (Seaweeds)&rft_subject=Earth Science | Biosphere | Aquatic Ecosystems | Benthic Habitat&rft_subject=Aquaculture Systems&rft_subject=Aquaria&rft_subject=Coastal Waters (Australia) | West Australia Coast, WA&rft_subject=Global / Oceans | East Indian Ocean&rft_subject=Global / Oceans | Indian Ocean&rft_subject=WAMSI Node 1 Project 1: Southwest Australian Coastal Biogeochemistry&rft_subject=Western Australian Marine Science Institute&rft_subject=Lunella torquata&rft.type=dataset&rft.language=English Access the data
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Data is made available under a Creative Commons Attribution 4.0 International Licence (http://creativecommons.org/licenses/by/4.0/). Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was provided by CSIRO.

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We attempted to asses the potential for using stable isotopes as a tool for rapid assessment of trophic interactions in a nearshore benthic ecosystem in Western Australia. The information gained from this experiment will help us to refine our use of stable isotopes, and contribute to efforts to develop "sharper" tools to achieve the ultimate goal of providing accurate characterisation of food webs, information sorely needed by managers of marine resources. A controlled laboratory scale feeding experiment with the gastropod, Turbo torquatus was conducted to assess the suitability of stable isotope analyses for diet inference. Seventy eight T.torquatus were fed enriched macroalgae (Ulva lactuca) to alter their natural isotopic profile (ä13C and ä15N) and then fed three locally occurring macroalgae (Ulva lactuca, Carpopeltis phyllophora, and Ecklonia radiate) over 17 weeks to assess how their isotopic profile reflected that of their diet. Feeding the enriched macroalgae (Ulva lactuca) to Turbo torquatus increased their carbon and nitrogen isotope ratios to very high levels after just 72 hours. Unfortunately even after 17 weeks of feeding on natural macroalgae (not enriched) the heavier isotope for both carbon and nitrogen was still retained in the muscle tissue of the gastropods. This suggests that the enrichment of Ulva lactuca appears to have been for too long or the concentration of 98% ä13C NaHCO3 and 98% ä15N NH4Cl was much too high.

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Progress Code: completed
Maintenance and Update Frequency: notPlanned
Statement: Data was collected in the lab then entered onto Microsoft Excel spreadsheets. The data has been explored and analysed using Excel and various statistical packages.

Notes

Credit
Collaborative project with the Western Australian Marine Science Institute
Credit
Mat Vanderklift

Data time period: 2008-09-01

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117,-29 117,-33 115,-33 115,-29 117,-29

116,-31

text: westlimit=115; southlimit=-33; eastlimit=117; northlimit=-29

Subjects
Aquaculture Systems | Aquaria | Coastal Waters (Australia) | West Australia Coast, WA | Earth Science | Biological Classification | Animals/Invertebrates | Earth Science | Biological Classification | Animals/Invertebrates | Mollusks | Earth Science | Biological Classification | Plants | Macroalgae (Seaweeds) | Earth Science | Biosphere | Aquatic Ecosystems | Benthic Habitat | Global / Oceans | East Indian Ocean | Global / Oceans | Indian Ocean | Lunella torquata | WAMSI Node 1 Project 1: Southwest Australian Coastal Biogeochemistry | Western Australian Marine Science Institute | oceans |

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Identifiers
  • Local : Anzlic Identifier: ANZCW0306008575
  • Local : Marlin Record Number: 8575
  • global : 9176f73e-636f-4481-96f2-f43dc72fdb0a