{"key":"d5913eb4-2ee3-4fa3-9c7d-a74bebfb208b","installationKey":"19893c10-381e-4534-9bb8-6c37d03ad29e","publishingOrganizationKey":"7c32d06a-86ce-4746-99c3-96d57f9df248","doi":"10.15468/mpcsyq","external":false,"numConstituents":0,"type":"OCCURRENCE","title":"SARDI Port River-Barker Inlet Benthic Visual Surveys","description":"SARDI Port River-Barker Inlet benthic visual surveys aimed to delimit the extent and assess abundance of introduced Caulerpa species (particularly C. taxifolia) in the Port River-Barker Inlet system, Port Adelaide, South Australia. A secondary aim of the surveys was to record the presence and abundance of native seagrasses and to record any observations of other introduced species. Surveys used a standardised visual survey method to record taxa of interest.","language":"eng","homepage":"https://pir.sa.gov.au/sardi","logoUrl":"https://collections.ala.org.au/data/dataResource/SARDI_Lockup_Full_Colour_RGB.png","citation":{"text":"South Australian Research and Development Institute (2025). SARDI Port River-Barker Inlet Benthic Visual Surveys. Occurrence dataset https://doi.org/10.15468/mpcsyq accessed via GBIF.org on 2026-10-14.","citationProvidedBySource":false},"contactsCitation":[],"lockedForAutoUpdate":false,"createdBy":"aladata","modifiedBy":"aladata","created":"2025-07-11T00:54:53.373+00:00","modified":"2026-10-08T18:17:20.930+00:00","contacts":[{"key":6431039,"type":"ORIGINATOR","primary":true,"userId":[],"position":[],"email":[],"phone":[],"homepage":[],"organization":"South Australian Research and Development Institute","address":[],"createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2025-12-10T05:58:04.791+00:00","modified":"2025-12-10T05:58:04.791+00:00"},{"key":6431040,"type":"METADATA_AUTHOR","primary":true,"userId":[],"position":[],"email":[],"phone":[],"homepage":[],"organization":"South Australian Research and Development Institute","address":[],"createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2025-12-10T05:58:04.793+00:00","modified":"2025-12-10T05:58:04.793+00:00"},{"key":6431041,"type":"DISTRIBUTOR","primary":false,"userId":[],"position":[],"email":["info@ala.org.au"],"phone":[],"homepage":[],"organization":"Atlas of Living Australia","address":["CSIRO Ecosystems Services"],"city":"Canberra","province":"ACT","country":"AU","postalCode":"2601","createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2025-12-10T05:58:04.794+00:00","modified":"2025-12-10T05:58:04.794+00:00"},{"key":6431042,"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":true,"userId":[],"firstName":"Kathryn","lastName":"Wiltshire","position":["editor"],"email":["kathryn.wiltshire@sa.gov.au"],"phone":[],"homepage":[],"address":[],"createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2025-12-10T05:58:04.795+00:00","modified":"2025-12-10T05:58:04.795+00:00"}],"endpoints":[{"key":1123901,"type":"DWC_ARCHIVE","url":"https://dwca-exports.ala.org.au/dr31926.zip","createdBy":"aladata","modifiedBy":"aladata","created":"2025-07-11T00:55:05.285+00:00","modified":"2025-07-11T00:55:05.285+00:00","machineTags":[]}],"machineTags":[{"key":33137900,"namespace":"crawler.gbif.org","name":"crawl_attempt","value":"167","createdBy":"crawler.gbif.org","created":"2026-10-08T18:18:21.580+00:00"}],"tags":[],"identifiers":[{"key":458242,"type":"UUID","identifier":"d5913eb4-2ee3-4fa3-9c7d-a74bebfb208b","createdBy":"crawler.gbif.org","created":"2025-10-24T09:29:51.034+00:00","primary":false},{"key":444261,"type":"URL","identifier":"https://collections.ala.org.au/public/show/dr31926","createdBy":"crawler.gbif.org","created":"2025-07-11T00:56:18.770+00:00","primary":false},{"key":444260,"type":"UUID","identifier":"098c01ed-ebdf-3f04-b3a8-2ca264f3bf01","createdBy":"crawler.gbif.org","created":"2025-07-11T00:56:18.768+00:00","primary":false}],"comments":[],"bibliographicCitations":[],"curatorialUnits":[],"taxonomicCoverages":[],"geographicCoverages":[],"temporalCoverages":[],"keywordCollections":[],"samplingDescription":{"methodSteps":["Surveys were carried out by a trained observer on snorkel or SCUBA. Transect distances were monitored by handheld GPS in the vessel accompanying the snorkeller/SCUBA diver and GPS waypoints were recorded at the end of each transect.\n\nAbundance of benthic vegetation was recorded every 100 m throughout the survey area using a modified Braun-Blanquet scale with categories: \nValue 0 - absent\nValue 1 - <5% cover\nValue 2 - 5-25% cover\nValue 3 - 25-50% cover\nValue 4 - 50-75% cover\nValue 5 - 75-95% cover\nValue 6 - >95% cover\n\nThe focus of the surveys was cover of introduced Caulerpa species seaweed , particularly C. taxifolia and native seagrasses, with the latter identified to genus. Native Caulerpa species and the introduced C. cylindracea were also recorded where present. Other notable introduced species were recorded where observed along a transect using (0) absent and (1) present for observations of motile species, and Braun-Blanquet scale abundance for sessile benthic species."]},"countryCoverage":[],"collections":[],"dataDescriptions":[],"dataLanguage":"eng","purpose":"<para/>","pubDate":"2025-07-11T00:00:00.000+00:00","license":"http://creativecommons.org/licenses/by/4.0/legalcode","dwca":{"coreType":"http://rs.tdwg.org/dwc/terms/Occurrence","extensions":[],"modified":"2026-09-04T06:50:07.650+00:00"},"approximateCounts":{"occurrenceCount":12503}}