{"schema":"plot.claim/v1","address":{"kind":"claim","id":"QZ53-E0","version":1,"latest_version":1,"is_latest":true,"release":null,"url":"https://www.plot.eco/c/QZ53-E0","formats":{"html":"https://www.plot.eco/c/QZ53-E0","json":"https://www.plot.eco/c/QZ53-E0.json","md":"https://www.plot.eco/c/QZ53-E0.md","embed":"https://www.plot.eco/c/QZ53-E0/embed"}},"record_type":"observation","statement":"Parks Victoria's 2007 management plan says intertidal and subtidal basalt reefs occupy about half of the sanctuary, 15 ha.","about":{"id":"A1QA-XX","name":"Jawbone Marine Sanctuary basalt reefs","kind":"habitat","url":"https://www.plot.eco/e/A1QA-XX","place":null},"object":null,"measure":"Habitat extent","value":{"text":"≈ 15 ha","number":15,"lower":null,"upper":null,"comparator":"~","unit":"ha"},"caveats":{"kind":"source_reported","kind_label":"Reported by source","origin":"government_reported","origin_label":"Reported by government","period":{"text":"as stated in the June 2007 management plan","start":null,"end":null},"verification":{"level":"reviewed","label":"Reviewed","step":3,"of":4,"meaning":"PLOT checked the claim against its source. This is not independent verification.","basis":"person","basis_note":"Checked by a person."},"open_questions":{"count":0,"note":"Open questions and challenges are counted publicly; their text is published when they are resolved."}},"temporal_status":"historic","method":"Stated in the management plan","uncertainty":"Given as 'half of the sanctuary (15 ha)'","limitations":"A 2007 statement; not a current measurement.","explanation":null,"source":{"title":"Jawbone Marine Sanctuary Management Plan (June 2007)","publisher":"Parks Victoria","url":"https://www.parks.vic.gov.au/-/media/project/pv/main/parks/documents/management-plans/resource-library/jawbone-marine-sanctuary---management-plan---2007.pdf","locator":"Section 4.4, 'Rocky reef communities', printed page 18","page":18,"plot_url":"https://www.plot.eco/s/4TTE-H4?snippet=00dfbc30-c4d2-4a63-bbf9-822ea15f3690"},"framework_targets":[],"editions":["hobsons-bay-pilot-1-test"],"history":[{"version":1,"change_reason":null,"current":true}],"resolved_questions":[],"sourcing":{"found":"before_protocol","summary":"Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication.","protocol":null,"note":"These sources were gathered before sourcing protocol v0.1 existed. Claude Code read Parks Victoria and Hobsons Bay City Council web pages and PDFs on 15 Oct 2026, starting from a research report supplied by the PLOT owner, and extracted candidate claims into the Hobsons Bay pilot 1 intake batch. No search queries, screening decisions or costs were recorded, so none are shown. Council page quotes were read through a summarising fetch tool and are marked unverified in the batch.","question":null,"channel":null,"query":null,"screening":null,"extraction":{"prompt_ref":null,"model_ref":"Claude Opus 5.5 (Claude Code)"}},"jobs":null,"cite_as":"PLOT record c/QZ53-E0 v1, Parks Victoria (as stated in the June 2007 management plan), reported by source"}