{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp11_mechanism_context_external20_20260804","research_id":"eoa_inverse_innovation_exp11_external_scrutiny_20260804","cell_id":"deadweight_loss_reduction__biology_ecology","opaque_id":"deadweight_loss_reduction__biology_ecology__A","search_lanes":{"direct_problem":{"queries":["selective fish passage invasive species seasonal barrier native fish passage sorting fishway","temporary seasonal fish passage barrier invasive fish pathogens screened passage tagged native fish","fish passage selective connectivity invasive species barrier review selective passage technologies","manual trap sort fish passage native fish invasive species barrier operation"],"source_ids":["SRC1","SRC2","SRC3","SRC7","SRC8"],"no_result_note":null},"closest_prior_art":{"queries":["selective fragmentation fish passage trap and sort","site:glfc.org selective fish passage trap-and-sort sea lamprey barrier","FishPass selective fish passage project authorization Boardman River official","Australia seasonal fishway operation pest fish sorting native fish passage barrier"],"source_ids":["SRC2","SRC3","SRC4","SRC5","SRC6","SRC8"],"no_result_note":null},"historical_terminology":{"queries":["historical trap-and-haul fish passage dam selective species","fish lock fish elevator sorting invasive fish passage history","selective fragmentation fish passage trap and sort","isolation management intentional fragmentation invasive fish barrier"],"source_ids":["SRC1","SRC2","SRC8"],"no_result_note":null},"products_practices_standards":{"queries":["Whooshh FishL Recognition system selective fish passage invasive species official","fish passage design standard selective passage invasive species official guideline","automated fish sorting passage species recognition dam first party product","site:fws.gov fish passage guidelines aquatic invasive species trap sort seasonal operation"],"source_ids":["SRC3","SRC4","SRC5","SRC6","SRC7","SRC8"],"no_result_note":null},"non_english_regional":{"queries":["paso selectivo peces especies invasoras barrera migración peces nativos","passe à poissons sélective espèces invasives barrage tri poissons migrateurs","selektiver Fischaufstieg invasive Arten Fischpassage Barriere saisonal","Australia seasonal fishway operation pest fish sorting native fish passage barrier"],"source_ids":["SRC1","SRC5","SRC7"],"no_result_note":"Spanish, French, and German searches mainly returned general fishway or invasive-species material rather than a closer full-package analogue. Regional Australian and New Zealand sources documented directly relevant sorting, selective-barrier, authorization, and monitoring practices."},"composition_subproblems":{"queries":["selective fish passage seasonal window target native fish tagging telemetry non-target monitoring rollback barrier","fish trap sort passage disease pathogen screening permit invasive species one season pilot","barrier fish migration upstream habitat suitability telemetry before after monitoring selective passage","temporary weir seasonal native fish passage invasive species crowding injury trap sort"],"source_ids":["SRC1","SRC2","SRC4","SRC5","SRC7","SRC8"],"no_result_note":"No retained source established that pathogen surveillance alone can make an otherwise unacceptable transfer safe; site-specific fish-health requirements remain necessary."}},"sources":[{"source_id":"SRC1","title":"The Use of Barriers to Limit the Spread of Aquatic Invasive Animal Species: A Global Review","url":"https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2021.611631/full","publisher":"Frontiers in Ecology and Evolution","date_or_year":"2021-02-09","source_type":"SECONDARY_RESEARCH","language":"English","claims_supported":["Aquatic-invasive-species barriers can also block native movements and create a connectivity-versus-biosecurity trade-off.","Barriers can restrict spawning, refuge, dispersal, and recolonization by native fish.","Selective fragmentation, intentional fragmentation, isolation management, screens, traps, and seasonally or behaviorally selective barriers are established search terminology.","Only 25 percent of reviewed studies assessed native-fauna effects, robust BACI designs were uncommon, and long-term ecological evidence was limited."]},{"source_id":"SRC2","title":"Selective fragmentation and the management of fish movement across anthropogenic barriers","url":"https://esajournals.onlinelibrary.wiley.com/doi/10.1002/eap.1795","publisher":"Ecological Society of America / Wiley","date_or_year":"2018","source_type":"SECONDARY_RESEARCH","language":"English","claims_supported":["The proposed problem is already framed in the literature as selective fragmentation or selective fish passage.","Trap-and-sort and capture-translocation provide highly species-selective passage.","The Redlands Diversion Dam fishway operates from spring through autumn, passes native fishes toward spawning habitat, and removes numerous nonnative species.","Movement phenology, temporary barriers, multiple sorting filters, automated recognition, crowding, escape, injury, and labor costs are recognized design considerations."]},{"source_id":"SRC3","title":"Barriers and Trapping","url":"https://www.glfc.org/barriers-and-trapping-theme.php","publisher":"Great Lakes Fishery Commission","date_or_year":"Accessed 2026-08-04","source_type":"OFFICIAL_GUIDANCE","language":"English","claims_supported":["Sea-lamprey barriers protect upstream habitat but can block desirable migratory fish and reduce productive capacity and biodiversity.","The commission explicitly defines selective fish passage as passing desirable fishes without sacrificing invasive sea-lamprey control.","Timing, habitat preference, swimming and jumping ability, body size, trap design, placement, and operation are active selective-passage levers.","The Great Lakes Fishery Commission is an identifiable binational coordinating and research authority."]},{"source_id":"SRC4","title":"FishPass","url":"https://www.glfc.org/fishpass.php","publisher":"Great Lakes Fishery Commission","date_or_year":"Accessed 2026-08-04","source_type":"FIRST_PARTY_PRODUCT","language":"English","claims_supported":["FishPass combines a complete barrier, fish-sorting channel, limited passage of native fish, invasive-sea-lamprey exclusion, monitoring, and staged research.","Its initial ten-year phase limits passage numbers and coordinates passage with fisheries agencies.","The project identifies local, tribal, state, federal, city, and advisory-board roles, including Grand Traverse Band and Michigan Department of Natural Resources participation.","Its research and assessment plans demonstrate a bounded, monitored pathway for testing sorting techniques while retaining a complete barrier."]},{"source_id":"SRC5","title":"Fishway helps move more than 9000 fish into Hinze Dam","url":"https://www.seqwater.com.au/news/fishway-helps-move-more-9000-fish-hinze-dam","publisher":"Seqwater","date_or_year":"2021-02-24","source_type":"FIRST_PARTY_PRODUCT","language":"English","claims_supported":["Hinze Dam routinely operates a trap-and-haul fishway as an environmental-compliance practice.","Operators sort captured fish, transfer native species upstream, and remove pest species.","Operation intensifies during spill and migration conditions, demonstrating conditionally seasonal implementation.","The reported operation transferred about 9,000 native fish and removed about 4,000 pest fish during the described period."]},{"source_id":"SRC6","title":"Selector: Innovative Fish Ladder Solutions","url":"https://www.whooshh.com/product/selector/","publisher":"Whooshh Innovations","date_or_year":"Accessed 2026-08-04","source_type":"FIRST_PARTY_PRODUCT","language":"English","claims_supported":["A commercial product already combines volitional entry, real-time image-based species verification, automated gates, desired-fish passage, and invasive-fish rejection.","The product supplies digital images and verifiable counts for monitoring.","The product claim closely overlaps the proposal's verified-target selective-passage mechanism, although manufacturer claims require independent site validation."]},{"source_id":"SRC7","title":"Fish passage action plan guidance","url":"https://environment.govt.nz/publications/fish-passage-action-plan-guidance/","publisher":"New Zealand Ministry for the Environment","date_or_year":"2022-04-19","source_type":"OFFICIAL_GUIDANCE","language":"English with Māori terminology","claims_supported":["New Zealand guidance recognizes that barriers may protect native biodiversity from invasive fishes and explicitly calls for consideration of selective passage.","Regional councils, structure owners or occupiers, consent holders, and the Department of Conservation have identifiable planning, monitoring, maintenance, and approval roles.","Monitoring is required against objectives and performance standards, especially for selective barriers or novel applications.","The guidance incorporates tangata whenua consultation, private landowners, social and cultural values, and regulatory approval requirements."]},{"source_id":"SRC8","title":"Diadromous Fish Passage: A Primer on Technology, Planning, and Design for the Atlantic and Gulf Coasts","url":"https://www.greateratlantic.fisheries.noaa.gov/public/public/web/NEROINET/OLDhcd/docs/FishPassagePrimer.pdf","publisher":"NOAA National Marine Fisheries Service","date_or_year":"2015","source_type":"OFFICIAL_GUIDANCE","language":"English","claims_supported":["NOAA documents trap-and-haul, trap-and-truck, trap-and-transport, fish lifts, fish locks, sorting pools, screens, tagging, and telemetry as existing practice and historical terminology.","Trap-sort-transport design considers target and non-target species, migration periods, flows, injury, stress, permits, maintenance, and agency-coordinated operating plans.","NOAA identifies upstream habitat quality, absent spawning runs, and harmful invasive species as reasons passage may be nonviable.","Fish passage changes can require state and federal permits, endangered-species authorization, agency coordination, and site-specific safe, timely, and effective performance objectives."]}],"problem_evidence":{"status":"SUPPORTED","finding":"Independent research and official guidance support the diagnosed trade-off: water-control and invasive-species barriers can prevent native fish from reaching spawning, refuge, feeding, or dispersal habitat, while opening connectivity can spread invasive organisms or disease. This is a recognized management problem across North America, Australia, and New Zealand rather than a merely hypothetical analogy.","source_ids":["SRC1","SRC2","SRC3","SRC5","SRC7","SRC8"],"uncertainty":"A barrier's population-level importance and the suitability of upstream habitat are site- and species-specific. Aggregation below a barrier alone does not establish demographic limitation."},"adopter_evidence":{"status":"SUPPORTED","finding":"Identifiable authorizers and adopters include the barrier owner or operator, consent holder, regional or fisheries agencies, biosecurity authorities, Indigenous or tribal rights holders, and local government. FishPass and New Zealand guidance provide concrete governance examples, while Seqwater is a named operating adopter.","source_ids":["SRC3","SRC4","SRC5","SRC7","SRC8"],"uncertainty":"No particular barrier, operator, target population, or rights holder is named in the proposal, so willingness and jurisdiction for an actual pilot remain unverified."},"implementation_evidence":{"status":"SUPPORTED","finding":"Manual seasonal or condition-triggered trap-and-sort/haul systems already pass selected native fish while removing nonnative fish, and an automated recognition-and-gating product is marketed for the same function. Official guidance covers seasonal operating periods, tagging, monitoring, permits, handling risk, and maintenance. The causal lever is therefore implementable in principle.","source_ids":["SRC2","SRC4","SRC5","SRC6","SRC7","SRC8"],"uncertainty":"The evidence does not validate a generic one-season protocol at an unspecified site. Automated-product performance, pathogen exclusion, early life-stage exclusion, injury, delayed ecological effects, and hydraulic reliability require independent site-specific testing."},"prior_art":{"disposition":"ESTABLISHED_PRACTICE","closest_analogues":[{"name":"Seasonal Redlands Diversion Dam trap-and-sort fishway","source_ids":["SRC2"],"same_problem":true,"same_causal_lever":true,"overlap":"Operates from spring through autumn, collects fish at a barrier, manually verifies and passes desirable native fishes toward upstream spawning habitat, and removes multiple nonnative species.","remaining_difference":"The proposal adds explicit preregistration, one-season sunset, tagged-fish follow-up, pathogen thresholds, distributional review, and formal rollback language."},{"name":"Hinze Dam trap-and-haul fishway","source_ids":["SRC5"],"same_problem":true,"same_causal_lever":true,"overlap":"A barrier operator routinely sorts migrating fish, transports native species upstream, excludes pests, and varies operation with migration-triggering spill conditions.","remaining_difference":"The public report does not specify a matched before-period design, preregistered ecological thresholds, pathogen surveillance, or an automatic sunset."},{"name":"Great Lakes barriers, traps, and FishPass","source_ids":["SRC3","SRC4"],"same_problem":true,"same_causal_lever":true,"overlap":"Maintains an effective invasive-sea-lamprey barrier while developing limited, agency-coordinated, monitored passage for selected desirable or native fish through sorting channels.","remaining_difference":"FishPass is a larger, multi-year research facility rather than the proposed one-barrier, one-season temporary pilot; fully automated selectivity remains a research goal."},{"name":"Whooshh Selector","source_ids":["SRC6"],"same_problem":true,"same_causal_lever":true,"overlap":"Commercially offered system identifies individual fish, automatically opens or closes gates, passes desired fish, rejects invasive fish, and records verifiable monitoring data.","remaining_difference":"The proposal is technology-neutral and adds seasonal limits, ecological outcome measurement, pathogen surveillance, consent review, and prespecified rollback; manufacturer claims still need independent validation."},{"name":"NOAA trap-sort-transport practice","source_ids":["SRC8"],"same_problem":true,"same_causal_lever":true,"overlap":"Official guidance describes established target-species sorting, seasonal operations, non-target management, tagging, telemetry, permits, injury controls, and agency-coordinated operating plans.","remaining_difference":"The guidance is a general practice framework rather than evidence that the proposal's complete preregistered pilot package has been used at every relevant barrier type."}],"contrastive_claim_remaining":"A credible incremental claim would require a named site and comparator: for example, that a specified temporary screening or verification protocol achieves prespecified native passage and subsequent habitat-use gains, stays below invasive, pathogen, injury, and hydraulic thresholds, and reduces handling or operating burden relative to the site's existing trap-and-sort or full-exclusion practice. The submitted proposal does not currently specify that contrast.","contrastive_claim_falsifier":"The incremental claim would be falsified if the named protocol fails to improve verified passage and upstream habitat use relative to the existing selective-passage comparator; does not reduce cost, delay, injury, or misclassification; permits any threshold non-target or pathogen event; or if telemetry and habitat assessment show the barrier is not population-limiting.","confidence":"HIGH","search_limitations":"This bounded eight-source search was English-dominant despite Spanish, French, and German queries; regional Australian and New Zealand material partly mitigates that limitation. The Wiley article page returned a 403 on direct fetch, although its indexed full-text result and bibliographic record were reviewed. The search cannot establish exhaustive worldwide use, patents, freedom to operate, or whether unpublished local procedures contain an identical preregistration and rollback package."},"researchability_gates":{"externally_supported_problem":{"status":"PASS","rationale":"Research, official programs, and operating examples independently document native-fish exclusion, lost habitat connectivity, and the countervailing invasive-species risk.","source_ids":["SRC1","SRC2","SRC3","SRC5","SRC7","SRC8"]},"identifiable_adopter_or_authorizer":{"status":"PASS","rationale":"Barrier owners/operators, consent holders, fisheries and biosecurity agencies, regional councils, local government, and Indigenous or tribal authorities are identifiable; FishPass, Seqwater, and New Zealand guidance provide concrete examples.","source_ids":["SRC4","SRC5","SRC7","SRC8"]},"distinct_testable_incremental_claim":{"status":"FAIL","rationale":"The stated intervention is not distinct from established seasonal trap-and-sort/haul practice and closely overlaps current selective-passage projects and products. No named site, existing selective-passage comparator, or novel performance advantage is specified.","source_ids":["SRC2","SRC3","SRC4","SRC5","SRC6","SRC8"]},"bounded_next_evidence_step":{"status":"PASS","rationale":"A one-barrier, one-season study with tagged fish, baseline observations, target and non-target counts, injury and hydraulic thresholds, permits, and closure capability is operationally bounded and consistent with documented fish-passage evaluation practice.","source_ids":["SRC4","SRC7","SRC8"]},"no_unresolved_safety_or_authority_stop":{"status":"PASS","rationale":"No categorical stop is apparent if the barrier retains full closure, passage is limited to verified fish, required permits and rights-holder approvals are obtained, and prespecified invasive, pathogen, injury, hydraulic, and monitoring-integrity thresholds trigger closure. Approval remains a precondition, not an unresolved reason the research cannot be designed.","source_ids":["SRC4","SRC7","SRC8"]},"adequate_search_evidence":{"status":"PASS","rationale":"All six lanes were searched adversarially using current, historical, product, official, regional, and component-combination terminology. Eight opened direct sources from seven publisher groups include research reviews, official guidance, first-party operating evidence, a major official research project, and a commercial system.","source_ids":["SRC1","SRC2","SRC3","SRC4","SRC5","SRC6","SRC7","SRC8"]}},"strict_success":false,"screen_survival":false,"remaining_research_value":"MODERATE","recommended_next_step":"Reframe from a generic intervention proposal to a site-specific comparative study. Name one barrier, target native population, excluded organisms and pathogens, incumbent practice, operator and co-authorizers; first verify attempted migration, upstream habitat suitability, and demographic limitation. Then test a clearly incremental feature—such as lower-handling automated verification, a narrower phenology rule, or improved pathogen screening—against the site's existing trap-and-sort or full-exclusion comparator with preregistered passage, habitat-use, misclassification, injury, hydraulic, stewardship-burden, and closure thresholds.","world_novelty_boundary":"The bounded search shows that the central problem–intervention package is established practice and that closely matching projects and products exist. It does not establish that every monitoring, consent, sunset, pathogen, and rollback element has previously appeared in one identical protocol, nor can it establish world novelty, patentability, freedom to operate, market size, or realized impact."}