# Jawbone Marine Sanctuary > Cite as: PLOT record p/jawbone-marine-sanctuary v1, compiled by PLOT (1961-01-01 to 2025-12-31), place summary - **Address:** p/jawbone-marine-sanctuary (https://www.plot.eco/p/jawbone-marine-sanctuary) - **Kind:** Place summary (compiled from the published claims listed) - **Who said it:** Compiled by PLOT from the published claims listed - **Period:** Claims cover 1850–2027 (18 of 32 undated) - **Checked:** Reviewed (step 3 of 4): Its least-checked claim is reviewed. PLOT checked the claim against its source. This is not independent verification. - **Open questions:** None open - **Evidence shown:** Reviewed and from approved sources. 32 claims shown, all reviewed. A marine sanctuary in northern Port Phillip off Williamstown, reserved under the National Parks Act. It covers coastal waters from the high water mark; the land beside it is a separate reserve. ## Summary - **Period:** Claims cover 1850–2027 (18 of 32 undated) - **On the record:** Habitats on the record: basalt reefs, seagrass beds and Jawbone white mangrove and saltmarsh community - **Checked:** 32 reviewed - **One next step:** Confirm whether the 2007 Jawbone Marine Sanctuary management plan is still current (https://www.plot.eco/n/DFG8-ZR) - **Related places:** Hobsons Bay (adjacent), Jawbone Flora and Fauna Reserve (adjacent) ## What's here (16) Coverage: Native vegetation extent and types: not looked for yet; Threatened species recorded or likely: 1 found before the protocol; not looked for yet under it; Threatened ecological communities: not looked for yet. #### Jawbone Marine Sanctuary contains intertidal and subtidal basalt reefs. > Cite as: PLOT record c/R9ZE-GD v1, Parks Victoria (undated), reported association - **Address:** c/R9ZE-GD, version 1 of 1 (https://www.plot.eco/c/R9ZE-GD) - **About:** Jawbone Marine Sanctuary → Jawbone Marine Sanctuary basalt reefs - **Kind:** Reported association - **Who said it:** Reported by government - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 18, Section 4.4, 'Rocky reef communities', printed page 18 - **The snippet in PLOT:** - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by rule: relationship "contains_habitat": what lives or grows here #### Jawbone Marine Sanctuary contains seagrass beds, mainly in Jawbone Bay and at Wader Beach. > Cite as: PLOT record c/503D-AH v1, Parks Victoria (undated), reported association - **Address:** c/503D-AH, version 1 of 1 (https://www.plot.eco/c/503D-AH) - **About:** Jawbone Marine Sanctuary → Jawbone Marine Sanctuary seagrass beds - **Kind:** Reported association - **Who said it:** Reported by government - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 18, Section 4.4, 'Soft sediment communities', printed page 18 - **The snippet in PLOT:** - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by rule: relationship "contains_habitat": what lives or grows here #### Parks Victoria says Jawbone Marine Sanctuary contains saltmarsh and the largest area of mangroves in Port Phillip, the only Victorian mangroves growing on a basalt coast. > Cite as: PLOT record c/XGCG-ET v1, Parks Victoria (undated), reported association - **Address:** c/XGCG-ET, version 1 of 1 (https://www.plot.eco/c/XGCG-ET) - **About:** Jawbone Marine Sanctuary → Jawbone white mangrove and saltmarsh community - **Kind:** Reported association - **Who said it:** Reported by government - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary (park page) (Parks Victoria), Explore heading - **The snippet in PLOT:** - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by rule: relationship "contains_habitat": what lives or grows here #### Parks Victoria's 2007 plan reports that over 120 bird species were recorded in the Jawbone area in 1989. > Cite as: PLOT record c/Y7GW-CX v1, Parks Victoria (1989 (as reported in a 1989 report cited by the 2007 plan)), reported by source - **Address:** c/Y7GW-CX, version 1 of 1 (https://www.plot.eco/c/Y7GW-CX) - **Value:** \> 120 species (Number of species (as stated by the source)) - **About:** Jawbone Marine Sanctuary - **Kind:** Reported by source - **Who said it:** Reported by government - **Period:** 1989 (as reported in a 1989 report cited by the 2007 plan) - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 19, Section 4.4, 'Seabirds and shorebirds', printed page 19 - **The snippet in PLOT:** - **How they know:** Bird species list in a 1989 Conservation, Forests and Lands report (CFL 1989), as cited in the 2007 management plan - **Uncertainty:** Stated as 'over 120' - **Limitations:** Covers 'the Jawbone area', not only the sanctuary. A species tally, not a count of birds or a trend. Second-hand: the 1989 report itself was not read. - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by rule: measure "Number of species (as stated by the source)": what is here #### Parks Victoria's 2007 plan reports that the Friends of Williamstown Wetlands had recorded over 140 bird species in the Jawbone area by 2003. > Cite as: PLOT record c/DKMP-ZJ v1, Parks Victoria (by 2003 (personal communication cited by the 2007 plan)), reported by source - **Address:** c/DKMP-ZJ, version 1 of 1 (https://www.plot.eco/c/DKMP-ZJ) - **Value:** \> 140 species (Number of species (as stated by the source)) - **About:** Jawbone Marine Sanctuary - **Kind:** Reported by source - **Who said it:** Reported by community - **Period:** by 2003 (personal communication cited by the 2007 plan) - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 19, Section 4.4, 'Seabirds and shorebirds', printed page 19 - **The snippet in PLOT:** - **How they know:** Cumulative species list kept by the Friends of Williamstown Wetlands, reported as a personal communication in the 2007 management plan - **Uncertainty:** Stated as 'over 140'; a cumulative tally to 2003 - **Limitations:** Not comparable with the 1989 figure as a trend: different recorders, effort and period. Covers 'the Jawbone area', not only the sanctuary. - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by rule: measure "Number of species (as stated by the source)": what is here #### Parks Victoria's natural values summary says the sanctuary protects feeding areas for 24 internationally important migrant bird species. > Cite as: PLOT record c/PTWX-B7 v1, Parks Victoria (with Deakin University) (undated summary), reported by source - **Address:** c/PTWX-B7, version 1 of 1 (https://www.plot.eco/c/PTWX-B7) - **Value:** 24 species (Number of species (as stated by the source)) - **About:** Jawbone Marine Sanctuary - **Kind:** Reported by source - **Who said it:** Reported by government - **Period:** undated summary - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Marine Natural Values Study Summary: Jawbone Marine Sanctuary (Parks Victoria (with Deakin University)), p. 2, Species and Communities of Conservation Significance, page 2 - **The snippet in PLOT:** - **How they know:** Stated in Parks Victoria's Marine Natural Values Study summary - **Limitations:** Undated. Counts species whose feeding areas the sanctuary protects, not birds present. - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by rule: measure "Number of species (as stated by the source)": what is here #### Parks Victoria's natural values summary says the sanctuary provides important feeding and roosting habitat for 36 threatened bird species. > Cite as: PLOT record c/AVJE-YP v2, Parks Victoria (with Deakin University) (undated summary), reported by source - **Address:** c/AVJE-YP, version 2 of 2 (https://www.plot.eco/c/AVJE-YP) - **Value:** 36 species (Number of species (as stated by the source)) - **About:** Jawbone Marine Sanctuary - **Kind:** Reported by source - **Who said it:** Reported by government - **Period:** undated summary - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Marine Natural Values Study Summary: Jawbone Marine Sanctuary (Parks Victoria (with Deakin University)), p. 2, Species and Communities of Conservation Significance, page 2 - **The snippet in PLOT:** - **How they know:** Stated in Parks Victoria's Marine Natural Values Study summary - **Uncertainty:** Which list defines 'threatened' is not stated - **Limitations:** Undated. Counts species for which the sanctuary provides feeding and roosting habitat, not birds present at any time. - **Editions:** hobsons-bay-update - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. It answers the question "Threatened species recorded or likely". Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by sourcing question Q06.threatened_species #### Parks Victoria's 2007 management plan says intertidal and subtidal basalt reefs occupy about half of the sanctuary, 15 ha. > Cite as: PLOT record c/QZ53-E0 v1, Parks Victoria (as stated in the June 2007 management plan), reported by source - **Address:** c/QZ53-E0, version 1 of 1 (https://www.plot.eco/c/QZ53-E0) - **Value:** ≈ 15 ha (Habitat extent) - **About:** Jawbone Marine Sanctuary basalt reefs - **Kind:** Reported by source - **Who said it:** Reported by government - **Period:** as stated in the June 2007 management plan - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 18, Section 4.4, 'Rocky reef communities', printed page 18 - **The snippet in PLOT:** - **How they know:** Stated in the management plan - **Uncertainty:** Given as 'half of the sanctuary (15 ha)' - **Limitations:** A 2007 statement; not a current measurement. - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by rule: measure "Habitat extent": what is here #### Parks Victoria's natural values summary says more than seventeen fish species have been observed on the sanctuary's subtidal reefs. > Cite as: PLOT record c/FH9D-E9 v1, Parks Victoria (with Deakin University) (undated summary), reported by source - **Address:** c/FH9D-E9, version 1 of 1 (https://www.plot.eco/c/FH9D-E9) - **Value:** \> 17 species (Number of species (as stated by the source)) - **About:** Jawbone Marine Sanctuary basalt reefs - **Kind:** Reported by source - **Who said it:** Reported by government - **Period:** undated summary - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Marine Natural Values Study Summary: Jawbone Marine Sanctuary (Parks Victoria (with Deakin University)), p. 2, Marine Habitat Distribution and Ecological Communities, page 2 - **The snippet in PLOT:** - **How they know:** Stated in Parks Victoria's Marine Natural Values Study summary (reef surveys) - **Uncertainty:** Stated as 'more than seventeen' - **Limitations:** Undated; survey effort not stated. - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by rule: measure "Number of species (as stated by the source)": what is here #### PLOT groups “Jawbone Marine Sanctuary basalt reefs” as rocky reef, from the habitat named in its source. > Cite as: PLOT record c/ZZ2G-VB v1, Parks Victoria (undated), classification mapping - **Address:** c/ZZ2G-VB, version 1 of 1 (https://www.plot.eco/c/ZZ2G-VB) - **About:** Jawbone Marine Sanctuary basalt reefs → Rocky reef - **Kind:** Classification mapping - **Who said it:** PLOT reconstruction - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 18, Section 4.4, 'Rocky reef communities', printed page 18 - **The snippet in PLOT:** - **Editions:** hobson-s-bay-pilot-1 - **How we found this:** not recorded - **Section:** placed by rule: relationship "is_a_habitat_type": what lives or grows here #### Parks Victoria's 2007 management plan says the sanctuary supports about two hectares of seagrass beds, mainly in Jawbone Bay and at Wader Beach. > Cite as: PLOT record c/RX1S-E0 v1, Parks Victoria (as stated in the June 2007 management plan), reported by source - **Address:** c/RX1S-E0, version 1 of 1 (https://www.plot.eco/c/RX1S-E0) - **Value:** ≈ 2 ha (Habitat extent) - **About:** Jawbone Marine Sanctuary seagrass beds - **Kind:** Reported by source - **Who said it:** Reported by government - **Period:** as stated in the June 2007 management plan - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 18, Section 4.4, 'Soft sediment communities', printed page 18 - **The snippet in PLOT:** - **How they know:** Stated in the management plan, citing earlier surveys (Blake & Ball 2001; Plummer et al. 2003) - **Uncertainty:** Rounded; survey dates are those of the cited studies - **Limitations:** Seagrass extent changes over time; this is a 2007 statement of earlier survey results, not a current measurement. - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by rule: measure "Habitat extent": what is here #### PLOT groups “Jawbone Marine Sanctuary seagrass beds” as seagrass, from the habitat named in its source. > Cite as: PLOT record c/RQRP-0Z v1, Parks Victoria (undated), classification mapping - **Address:** c/RQRP-0Z, version 1 of 1 (https://www.plot.eco/c/RQRP-0Z) - **About:** Jawbone Marine Sanctuary seagrass beds → Seagrass - **Kind:** Classification mapping - **Who said it:** PLOT reconstruction - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 18, Section 4.4, 'Soft sediment communities', printed page 18 - **The snippet in PLOT:** - **Editions:** hobson-s-bay-pilot-1 - **How we found this:** not recorded - **Section:** placed by rule: relationship "is_a_habitat_type": what lives or grows here #### PLOT groups “Jawbone white mangrove and saltmarsh community” as mangrove, from the habitat named in its source. > Cite as: PLOT record c/NCGG-Q9 v1, Parks Victoria (undated), classification mapping - **Address:** c/NCGG-Q9, version 1 of 1 (https://www.plot.eco/c/NCGG-Q9) - **About:** Jawbone white mangrove and saltmarsh community → Mangrove - **Kind:** Classification mapping - **Who said it:** PLOT reconstruction - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 18, Section 4.4, 'Mangrove and saltmarsh communities', printed page 18 - **The snippet in PLOT:** - **Editions:** hobson-s-bay-pilot-1 - **How we found this:** not recorded - **Section:** placed by rule: relationship "is_a_habitat_type": what lives or grows here #### PLOT groups “Jawbone white mangrove and saltmarsh community” as saltmarsh, from the habitat named in its source. > Cite as: PLOT record c/XHH0-MA v1, Parks Victoria (undated), classification mapping - **Address:** c/XHH0-MA, version 1 of 1 (https://www.plot.eco/c/XHH0-MA) - **About:** Jawbone white mangrove and saltmarsh community → Saltmarsh - **Kind:** Classification mapping - **Who said it:** PLOT reconstruction - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 18, Section 4.4, 'Mangrove and saltmarsh communities', printed page 18 - **The snippet in PLOT:** - **Editions:** hobson-s-bay-pilot-1 - **How we found this:** not recorded - **Section:** placed by rule: relationship "is_a_habitat_type": what lives or grows here #### Parks Victoria says Red-necked Stints arrive from Alaska and Siberia to feed in the sanctuary's intertidal areas and saltmarsh during the Australian summer. > Cite as: PLOT record c/YCS3-0E v1, Parks Victoria (undated), reported association - **Address:** c/YCS3-0E, version 1 of 1 (https://www.plot.eco/c/YCS3-0E) - **About:** Red-necked Stint → Jawbone Marine Sanctuary - **Kind:** Reported association - **Who said it:** Reported by government - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 19, Section 4.4, 'Seabirds and shorebirds', printed page 19 - **The snippet in PLOT:** - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by rule: relationship "reported_seasonal_use": what lives or grows here ### About the adjacent Jawbone Flora and Fauna Reserve #### Parks Victoria describes Jawbone Flora and Fauna Reserve as wetlands, open grasslands, a saltmarsh and a mangrove conservation area. > Cite as: PLOT record c/KX0T-E0 v1, Parks Victoria (undated), reported association - **Address:** c/KX0T-E0, version 1 of 1 (https://www.plot.eco/c/KX0T-E0) - **About:** Jawbone Flora and Fauna Reserve → Jawbone Flora and Fauna Reserve saltmarsh and mangrove conservation area - **Kind:** Reported association - **Who said it:** Reported by government - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Flora and Fauna Reserve (site page) (Parks Victoria), Explore heading - **The snippet in PLOT:** - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by rule: relationship "contains_habitat": what lives or grows here ## Condition and change (1) Coverage: Vegetation and habitat condition: not looked for yet; Gross vegetation loss and change: not looked for yet; Waterway, wetland and coastal condition: not looked for yet. ### About the adjacent Hobsons Bay #### Mean sea level at Stony Point rose about 2.6 mm a year from 1993 to 2025 (95% interval 1.49–3.64). > Cite as: PLOT record c/BN1F-2M v1, PSMSL, National Oceanography Centre (1993-01-01 to 2025-12-31), derived - **Address:** c/BN1F-2M, version 1 of 1 (https://www.plot.eco/c/BN1F-2M) - **Value:** 2.56 mm/yr (Mean sea level trend) - **About:** Hobsons Bay - **Kind:** derived - **Who said it:** PLOT model - **Period:** 1993-01-01 to 2025-12-31 - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Permanent Service for Mean Sea Level: monthly mean sea level (Williamstown 93, Stony Point 1033) (PSMSL, National Oceanography Centre), Station 1033 Stony Point, RLR monthly - **The snippet in PLOT:** - **How they know:** climate.sealevel.trend@0.1: least squares on deseasonalised monthly means, 95% interval widened for autocorrelation. - **Uncertainty:** 95% interval 1.49 to 3.64 mm a year. - **Limitations:** A gauge in Western Port, not in Port Phillip; relative to the land it stands on. - **Editions:** october-26th-release - **How we found this:** not recorded - **Section:** placed by rule: measure "Mean sea level trend": condition or change ## Pressures (0) Coverage: Invasive species pressure: not looked for yet; Development, land use and major projects: not looked for yet. Nothing published in this section yet. That is not the same as nothing being there. ## Protection, rules and obligations (2) Coverage: Protected and conserved areas: 2 found before the protocol; not looked for yet under it; Offsets, credits and conservation obligations: not looked for yet; Local strategies, targets and commitments: not looked for yet. #### Parks Victoria's 2007 management plan gives Jawbone Marine Sanctuary's area as 30 ha. > Cite as: PLOT record c/86WA-AT v1, Parks Victoria (as stated in the June 2007 management plan), reported by source - **Address:** c/86WA-AT, version 1 of 1 (https://www.plot.eco/c/86WA-AT) - **Value:** 30 ha (Reserve area) - **About:** Jawbone Marine Sanctuary - **Kind:** Reported by source - **Who said it:** Reported by government - **Period:** as stated in the June 2007 management plan - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary (site page, Local Port of Port Phillip) (Parks Victoria), Explore heading - **The snippet in PLOT:** - **How they know:** Stated by the reserve manager in the management plan - **Uncertainty:** Rounded figure - **Limitations:** A management figure, not a habitat measurement. Parks Victoria's Natural Values Study summary gives 30.5 ha; the two are not reconciled. - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. It answers the question "Protected and conserved areas". Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by sourcing question Q05.protected_conserved_areas #### Parks Victoria's Marine Natural Values Study summary gives Jawbone Marine Sanctuary's area as 30.5 hectares. > Cite as: PLOT record c/N0PQ-A8 v1, Parks Victoria (with Deakin University) (undated summary), reported by source - **Address:** c/N0PQ-A8, version 1 of 1 (https://www.plot.eco/c/N0PQ-A8) - **Value:** 30.5 ha (Reserve area) - **About:** Jawbone Marine Sanctuary - **Kind:** Reported by source - **Who said it:** Reported by government - **Period:** undated summary - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Marine Natural Values Study Summary: Jawbone Marine Sanctuary (Parks Victoria (with Deakin University)), p. 1, Description, page 1 - **The snippet in PLOT:** - **How they know:** Stated in Parks Victoria's Marine Natural Values Study summary - **Limitations:** Undated. Differs from the 30 ha in the 2007 plan and on the current site page; kept as a separate claim, not averaged. - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. It answers the question "Protected and conserved areas". Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by sourcing question Q05.protected_conserved_areas ## Who's involved (2) Coverage: Place frame and governance: 2 found before the protocol; not looked for yet under it; Who works on nature here: not looked for yet. #### Jawbone Marine Sanctuary adjoins Jawbone Flora and Fauna Reserve. > Cite as: PLOT record c/3PPZ-R4 v2, Parks Victoria (undated), reported association - **Address:** c/3PPZ-R4, version 2 of 2 (https://www.plot.eco/c/3PPZ-R4) - **About:** Jawbone Marine Sanctuary → Jawbone Flora and Fauna Reserve - **Kind:** Reported association - **Who said it:** Reported by government - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 3, Section 2.1 Regional context, printed page 3 - **The snippet in PLOT:** - **Editions:** hobsons-bay-update - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. It answers the question "Place frame and governance". Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by sourcing question Q01.place_frame #### Parks Victoria manages Jawbone Marine Sanctuary under the Parks Victoria Act 1998. > Cite as: PLOT record c/A9HD-2F v1, Parks Victoria (undated), formal role - **Address:** c/A9HD-2F, version 1 of 1 (https://www.plot.eco/c/A9HD-2F) - **About:** Parks Victoria → Jawbone Marine Sanctuary - **Kind:** Formal role - **Who said it:** Reported by government - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria), p. 6, Section 2.5 Legislation and ECC recommendations, printed page 6 - **The snippet in PLOT:** - **Editions:** hobsons-bay-pilot-1-test - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. It answers the question "Place frame and governance". Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** placed by sourcing question Q01.place_frame ## NextSteps (0) Coverage: Restoration and management activity: not looked for yet. Nothing published in this section yet. That is not the same as nothing being there. - Confirm whether the 2007 Jawbone Marine Sanctuary management plan is still current (https://www.plot.eco/n/DFG8-ZR). Cite as: PLOT record n/DFG8-ZR v1, Imported from batch Hobsons Bay pilot 1: Jawbone Marine Sanctuary, Jawbone Flora and Fauna Reserve, Cherry Lake (as of 2026-10-15), proposal - Link Jawbone Marine Sanctuary's reef and seagrass monitoring results (https://www.plot.eco/n/6Z0S-GD). Cite as: PLOT record n/6Z0S-GD v1, Imported from batch Hobsons Bay pilot 1: Jawbone Marine Sanctuary, Jawbone Flora and Fauna Reserve, Cherry Lake (as of 2026-10-15), proposal ## Open questions and gaps (2) Coverage: Biodiversity data coverage: not looked for yet. - **Evidence gap:** No water-quality testing sites within the sanctuary (as stated in 2007). Parks Victoria's 2007 plan states that EPA Victoria monitors water quality in Port Phillip but has no testing sites within the sanctuary. This pilot did not find a more recent statement either way. What would close it: Current EPA Victoria (or other) water-quality sampling sites and dated results covering the sanctuary, with methods. - **Evidence gap:** Reef and seagrass monitoring results not located. Parks Victoria describes ongoing intertidal and shallow subtidal reef monitoring and community seagrass (Sea Search) and fish (Reef Watch) monitoring, but this pilot did not locate published, dated results. What would close it: Dated monitoring reports or datasets for the sanctuary's reefs and seagrass, with methods and survey effort. ## Not yet placed in a section (10) #### At +2 °C of global warming, Hobsons Bay's annual rainfall would be about 576 mm (models range 536 mm–614 mm). > Cite as: PLOT record c/F0B0-BT v1, Queensland Government (Department of Environment, Science and Innovation) (at +2 °C global warming above 1850–1900), modelled or forecast - **Address:** c/F0B0-BT, version 1 of 1 (https://www.plot.eco/c/F0B0-BT) - **Value:** 576.14 mm (Annual rainfall) - **About:** Hobsons Bay - **Kind:** Modelled or forecast - **Who said it:** PLOT model - **Period:** at +2 °C global warming above 1850–1900 - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** SILO gridded climate data (daily and monthly, 0.05°) (Queensland Government (Department of Environment, Science and Innovation)), PLOT climate series plot:climate:place:hobsons-bay:self:pr-annual, reference 1961–1990 - **The snippet in PLOT:** - **How they know:** climate.gwl.delta@0.1: IPCC Atlas region SAU, SSP3-7.0, per-model monthly change at the level applied to 1961–1990; median across models. - **Uncertainty:** 10th–90th percentile across models: 536 mm–614 mm. - **Limitations:** Regional change factors, not downscaled. - **Editions:** october-26th-release - **How we found this:** not recorded - **Section:** not yet placed #### At +2 °C of global warming, Hobsons Bay's mean annual temperature would be about 16.4 °C (models range 16.0 °C–16.6 °C). > Cite as: PLOT record c/F3H3-EV v1, Queensland Government (Department of Environment, Science and Innovation) (at +2 °C global warming above 1850–1900), modelled or forecast - **Address:** c/F3H3-EV, version 1 of 1 (https://www.plot.eco/c/F3H3-EV) - **Value:** 16.38 °C (Mean annual temperature) - **About:** Hobsons Bay - **Kind:** Modelled or forecast - **Who said it:** PLOT model - **Period:** at +2 °C global warming above 1850–1900 - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** SILO gridded climate data (daily and monthly, 0.05°) (Queensland Government (Department of Environment, Science and Innovation)), PLOT climate series plot:climate:place:hobsons-bay:self:tas-mean-annual, reference 1961–1990 - **The snippet in PLOT:** - **How they know:** climate.gwl.delta@0.1: IPCC Atlas region SAU, SSP3-7.0, per-model monthly change at the level applied to 1961–1990; median across models. - **Uncertainty:** 10th–90th percentile across models: 16.0 °C–16.6 °C. - **Limitations:** Regional change factors, not downscaled. - **Editions:** october-26th-release - **How we found this:** not recorded - **Section:** not yet placed #### Cherry Lake, in Altona, is listed among Hobsons Bay City Council's parks and reserves. > Cite as: PLOT record c/C3Y2-B7 v1, Hobsons Bay City Council (undated), reported association - **Address:** c/C3Y2-B7, version 1 of 1 (https://www.plot.eco/c/C3Y2-B7) - **About:** Hobsons Bay → Cherry Lake - **Kind:** Reported association - **Who said it:** Reported by government - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Cherry Lake (Parks and reserves) (Hobsons Bay City Council), Location heading - **The snippet in PLOT:** - **Editions:** hobson-s-bay-pilot-1 - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** not yet placed #### Hobsons Bay City Council's Biodiversity Strategy says the council manages over 336 hectares of conservation area across 28 sites. > Cite as: PLOT record c/8X6E-1V v1, Hobsons Bay City Council (2023-12-01 to 2023-12-31), reported by source - **Address:** c/8X6E-1V, version 1 of 1 (https://www.plot.eco/c/8X6E-1V) - **Value:** \> 336 ha (Conservation area managed by the council) - **About:** Hobsons Bay - **Kind:** Reported by source - **Who said it:** Reported by government - **Period:** 2023-12-01 to 2023-12-31 - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Biodiversity Strategy 2024-34 (Hobsons Bay City Council), p. 7, p. 7 - **The snippet in PLOT:** - **How they know:** As stated by the council - **Uncertainty:** The council's 2023 consultation page gives a different figure (over 360 ha, same 28 sites). - **Limitations:** Includes a 33 ha seagrass bed, so it is not all land. - **Editions:** hobsons-bay-update - **How we found this:** not recorded - **Section:** not yet placed #### Hobsons Bay's annual rainfall averaged 501 mm in 1996–2025 (SILO grid). > Cite as: PLOT record c/VRH1-8M v1, Queensland Government (Department of Environment, Science and Innovation) (1996-01-01 to 2025-12-31), derived - **Address:** c/VRH1-8M, version 1 of 1 (https://www.plot.eco/c/VRH1-8M) - **Value:** 500.72 mm (Annual rainfall) - **About:** Hobsons Bay - **Kind:** derived - **Who said it:** PLOT model - **Period:** 1996-01-01 to 2025-12-31 - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** SILO gridded climate data (daily and monthly, 0.05°) (Queensland Government (Department of Environment, Science and Innovation)), PLOT climate series plot:climate:place:hobsons-bay:self:pr-annual, now 1996–2025 - **The snippet in PLOT:** - **How they know:** climate.series.grid\_extract@0.1: area-weighted mean of cell means, each cell needing 27 of 30 years. - **Uncertainty:** Interpolated grid. - **Limitations:** Grid cells miss microclimate. - **Editions:** october-26th-release - **How we found this:** not recorded - **Section:** not yet placed #### Hobsons Bay's annual rainfall averaged 591 mm in 1961–1990 (SILO grid). > Cite as: PLOT record c/48SZ-GW v1, Queensland Government (Department of Environment, Science and Innovation) (1961-01-01 to 1990-12-31), derived - **Address:** c/48SZ-GW, version 1 of 1 (https://www.plot.eco/c/48SZ-GW) - **Value:** 590.79 mm (Annual rainfall) - **About:** Hobsons Bay - **Kind:** derived - **Who said it:** PLOT model - **Period:** 1961-01-01 to 1990-12-31 - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** SILO gridded climate data (daily and monthly, 0.05°) (Queensland Government (Department of Environment, Science and Innovation)), PLOT climate series plot:climate:place:hobsons-bay:self:pr-annual, reference 1961–1990 - **The snippet in PLOT:** - **How they know:** climate.series.grid\_extract@0.1: area-weighted mean of cell means, each cell needing 27 of 30 years. - **Uncertainty:** Interpolated grid. - **Limitations:** Grid cells miss microclimate. - **Editions:** october-26th-release - **How we found this:** not recorded - **Section:** not yet placed #### Hobsons Bay's mean annual temperature averaged 14.8 °C in 1961–1990 (SILO grid). > Cite as: PLOT record c/R2YP-0Y v1, Queensland Government (Department of Environment, Science and Innovation) (1961-01-01 to 1990-12-31), derived - **Address:** c/R2YP-0Y, version 1 of 1 (https://www.plot.eco/c/R2YP-0Y) - **Value:** 14.85 °C (Mean annual temperature) - **About:** Hobsons Bay - **Kind:** derived - **Who said it:** PLOT model - **Period:** 1961-01-01 to 1990-12-31 - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** SILO gridded climate data (daily and monthly, 0.05°) (Queensland Government (Department of Environment, Science and Innovation)), PLOT climate series plot:climate:place:hobsons-bay:self:tas-mean-annual, reference 1961–1990 - **The snippet in PLOT:** - **How they know:** climate.series.grid\_extract@0.1: area-weighted mean of cell means, each cell needing 27 of 30 years. - **Uncertainty:** Interpolated grid. - **Limitations:** Grid cells miss microclimate. - **Editions:** october-26th-release - **How we found this:** not recorded - **Section:** not yet placed #### Hobsons Bay's mean annual temperature averaged 15.4 °C in 1996–2025 (SILO grid). > Cite as: PLOT record c/SFY3-0J v1, Queensland Government (Department of Environment, Science and Innovation) (1996-01-01 to 2025-12-31), derived - **Address:** c/SFY3-0J, version 1 of 1 (https://www.plot.eco/c/SFY3-0J) - **Value:** 15.44 °C (Mean annual temperature) - **About:** Hobsons Bay - **Kind:** derived - **Who said it:** PLOT model - **Period:** 1996-01-01 to 2025-12-31 - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** SILO gridded climate data (daily and monthly, 0.05°) (Queensland Government (Department of Environment, Science and Innovation)), PLOT climate series plot:climate:place:hobsons-bay:self:tas-mean-annual, now 1996–2025 - **The snippet in PLOT:** - **How they know:** climate.series.grid\_extract@0.1: area-weighted mean of cell means, each cell needing 27 of 30 years. - **Uncertainty:** Interpolated grid. - **Limitations:** Grid cells miss microclimate. - **Editions:** october-26th-release - **How we found this:** not recorded - **Section:** not yet placed #### Jawbone Flora and Fauna Reserve, in Williamstown, is listed among Hobsons Bay City Council's parks and reserves. > Cite as: PLOT record c/KQ39-T9 v1, Hobsons Bay City Council (undated), reported association - **Address:** c/KQ39-T9, version 1 of 1 (https://www.plot.eco/c/KQ39-T9) - **About:** Hobsons Bay → Jawbone Flora and Fauna Reserve - **Kind:** Reported association - **Who said it:** Reported by government - **Period:** undated - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Jawbone Flora & Fauna Reserve (Parks and reserves) (Hobsons Bay City Council), Jawbone Flora & Fauna Reserve heading - **The snippet in PLOT:** - **Editions:** hobson-s-bay-pilot-1 - **How we found this:** Found before PLOT's sourcing protocol v0.1 existed. Extracted with Claude Opus 5.5 (Claude Code); a person reviewed it before publication. - **Section:** not yet placed #### The council's strategy sets the objective of an overall increase in biodiversity, ecosystems and habitats by 2027. > Cite as: PLOT record c/GGYK-MJ v1, Hobsons Bay City Council (? to 2027-12-31), target (not achieved performance) - **Address:** c/GGYK-MJ, version 1 of 1 (https://www.plot.eco/c/GGYK-MJ) - **Value:** Overall increase by 2027 (Stated objective (as written by the responsible body)) - **About:** Hobsons Bay - **Kind:** Target (not achieved performance) - **Who said it:** Reported by government - **Period:** ? to 2027-12-31 - **Checked:** Reviewed (step 3 of 4): PLOT checked the claim against its source. This is not independent verification. Checked by a person. - **Open questions:** None open - **Source:** Biodiversity Strategy 2024-34 (Hobsons Bay City Council), p. 18, p. 18, Restore - **The snippet in PLOT:** - **Limitations:** No indicator or baseline was found next to this objective, so progress can't be measured from the strategy alone. - **Editions:** hobsons-bay-update - **How we found this:** not recorded - **Section:** not yet placed ## Sources (10) - Jawbone Marine Sanctuary Management Plan (June 2007) (Parks Victoria): 14 claims - SILO gridded climate data (daily and monthly, 0.05°) (Queensland Government (Department of Environment, Science and Innovation)): 6 claims - Marine Natural Values Study Summary: Jawbone Marine Sanctuary (Parks Victoria (with Deakin University)): 4 claims - Biodiversity Strategy 2024-34 (Hobsons Bay City Council): 2 claims - Cherry Lake (Parks and reserves) (Hobsons Bay City Council): 1 claim - Jawbone Flora & Fauna Reserve (Parks and reserves) (Hobsons Bay City Council): 1 claim - Jawbone Flora and Fauna Reserve (site page) (Parks Victoria): 1 claim - Jawbone Marine Sanctuary (park page) (Parks Victoria): 1 claim - Jawbone Marine Sanctuary (site page, Local Port of Port Phillip) (Parks Victoria): 1 claim - Permanent Service for Mean Sea Level: monthly mean sea level (Williamstown 93, Stony Point 1033) (PSMSL, National Oceanography Centre): 1 claim --- Machine-readable: https://www.plot.eco/p/jawbone-marine-sanctuary.json Cite as: PLOT record p/jawbone-marine-sanctuary v1, compiled by PLOT (1961-01-01 to 2025-12-31), place summary