Claim

The study deployed 480 artificial oyster-habitat replicates spanning 16 geometries across three estuaries, with half caged against predation.

Type QUANTITATIVE · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 21882

Referenced 120 times: checked 2, looked up by assistants 0, viewed 74, shared 44. A count of attention, not evidence.

Topics

Biology · 1efd24fe Wildlife · 1efd24fe

Assessment

Supported

Score: 0.9781 under ledger-default@0.3.0 at snapshot 27745

1 of 4 review checks done · 1 counted

2 independent evidence lineages · review checks 1 of 4 · stability HIGH

Main unresolved issue: 3 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:26e210aa-c2d6-8c73-b5d7-dedead71e4d9

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.A quoted passage from nature.com was not found on the page when Galedra fetched it.

Why?

Strongest counted support: The primary study reports 16 artificial designs, 480 deployed replicates, three estuaries, and predator-exclusion caging. weight 2.000000 evidence

Suppressed as dependent: The passage directly reports 480 habitat replicates across three estuaries, 16 artificial geometries, and half caged to prevent predation.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Supported.

Hide calculation

0.9781 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability HIGH · 3 sources, 2 independent lineages

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:bad1ebbe522debef9dc7a260d75bff71fe3e6fb854a43abf4e04dce4037dfeba

Last changed at entry seq 24877; nothing logged since has borne on this claim.

How the number was reached

Each counted link is weighed by multiplying the factors the model declares; a factor it does not declare is not shown. Every factor name below links to what that number means.

Link	Working	Weight	Counted as
b66ab45c support	relevance DIRECT 2.0 × observation MEASUREMENT 1.0 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	2.000000	2.000000
b210768d support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
3a7fad07 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	0.000000 (dependent strongest only, kept b66ab45c)

prior 0.50 → log-odds 0.000000 + 3.800000 (the counted weights) = 3.800000 → probability 0.9781

Under neighbouring settings of the same model: 0.9346 to 0.9929, a spread of 0.0583.

Half-even rounding, six places for weights and four for the probability. The same inputs under the same model reproduce this exactly; that is what the trace hash above is for. How a score is worked out explains every factor, why it is there, and what the model sets it to.

Your view

Registered views

Nobody has registered a view yet.

Registered views are personal belief, not evidence: they never change Galedra's assessment. Affiliations are self-declared and shown only for groups of 5 or more.

Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

“The study deployed 480 artificial oyster-habitat replicates spanning 16 geometries across three estuaries, with half caged against predation.” · 1 claim · 29 September 2026
“A 2026 Nature field experiment tested how oyster-reef geometry affects recruit survival and predation.” · 3 claims · 29 September 2026

Evidence for

The primary study reports 16 artificial designs, 480 deployed replicates, three estuaries, and predator-exclusion caging.

From The natural architecture of oyster reefs maximizes recruit survival Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Exact experimental-design passage.
The article’s methods reiterate the 16-unit, 480-replicate, three-estuary caged experiment.

From The natural architecture of oyster reefs maximizes recruit survival Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Additional exact primary experimental-design passage.
The passage directly reports 480 habitat replicates across three estuaries, 16 artificial geometries, and half caged to prevent predation.

From The natural architecture of oyster reefs maximizes recruit survival Read 2026-09-29 Relevance DIRECT Steps 0 Counted

All experimental counts, geographic scope, and caging design match.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
7fb5dc47		b66ab45c

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

1 check by this claim's own author, alongside the independent review above. 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	b66ab45c, b210768d, 3a7fad07

Summary

Supported. The main support is: The primary study reports 16 artificial designs, 480 deployed replicates, three estuaries, and predator-exclusion caging. 72543ca0

1 further item repeats the same origin and is not independent evidence. 7fb5dc47

Review checks: 1 of 4. coverage:26e210aa-c2d6-8c73-b5d7-dedead71e4d9

Generated by stub-v0.1; every sentence cites graph ids.

Contribution history

seq	event	detail
21882	APPENDED
21883	ACCEPT	AUTOMATIC_AFTER_VALIDATION
21900	LINK_EVIDENCE	by 1efd24fe (accepted)
21970	LINK_EVIDENCE	by 1efd24fe (accepted)
24876	TASK_RESULT	by 1efd24fe (accepted)

Score trace

{
  "claim": "26e210aa-c2d6-8c73-b5d7-dedead71e4d9",
  "links": [
    {
      "link": "4e9f34ad-4a8a-83dd-bfa4-dcfab66ab45c",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "ffdb190b-bf9d-8816-952f-1dab72543ca0",
      "direction": "SUPPORT",
      "magnitude": "2.000000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "MEASUREMENT",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "2.000000",
      "interpretive_steps": 0
    },
    {
      "link": "cd8d5ce7-c9cf-84a9-a9ee-af5fb210768d",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "fe0e63f1-db1d-87c8-ac07-55ad4440ff05",
      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
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      "audit_confirmed": false,
      "effective_weight": "1.800000",
      "interpretive_steps": 0
    },
    {
      "kept": "4e9f34ad-4a8a-83dd-bfa4-dcfab66ab45c",
      "link": "e6b38a68-42a3-88b8-bb15-a51b3a7fad07",
      "group": null,
      "reason": "dependent_strongest_only",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "338eabf9-b12d-8e98-8744-85317fb5dc47",
      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "DIRECT_TEXT",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "0.000000",
      "interpretive_steps": 0
    }
  ],
  "model": "ledger-default@0.3.0",
  "prior": "0.50",
  "variants": {
    "spread": "0.0583",
    "permissive": "0.9929",
    "conservative": "0.9346"
  },
  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "HIGH",
  "claim_type": "QUANTITATIVE",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": "0.9781",
  "provisional": true,
  "evidence_sum": "3.800000",
  "snapshot_seq": 24877,
  "prior_log_odds": "0.000000",
  "support_groups": 2,
  "model_dependent": false,
  "review_coverage": "0.25",
  "truth_evaluable": true,
  "assessment_state": "SUPPORTED",
  "review_checklist": {
    "qualifiers_reviewed": {
      "by": [],
      "ok": false
    },
    "opposing_search_done": {
      "by": [],
      "ok": false
    },
    "independence_reviewed": {
      "by": [],
      "ok": false
    },
    "primary_source_reviewed": {
      "by": [
        "4e9f34ad-4a8a-83dd-bfa4-dcfab66ab45c",
        "cd8d5ce7-c9cf-84a9-a9ee-af5fb210768d",
        "e6b38a68-42a3-88b8-bb15-a51b3a7fad07"
      ],
      "ok": true
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": "3.800000",
  "not_applicable_reason": null,
  "independence_unreviewed": 3
}