{ "model": { "rank": 6502, "code": "thing-q184755", "model_id": "vr.tr.phytoplankton", "name": "phytoplankton", "purpose": "Enable an AI agent to recognise phytoplankton, assess its condition and ecological significance, and choose defensible observation or management actions while retaining uncertainty.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.LIV", "industry": "", "version": "", "url": "/models/thing/q184755/", "tier": 2, "score": 60, "payload": { "layer": "wikidata", "aliases": [ "Antarctic phytoplankton", "nanophytoplankton", "marine phytoplankton", "Freshwater phytoplankton" ], "aliasCount": 4, "merged": 4, "knownIn": 60, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.phytoplankton", "source": { "dataset": "wikidata", "item": "Q184755", "url": "https://www.wikidata.org/wiki/Q184755", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T14:59:42Z", "providers": [ "Codex", "Grok" ], "missingProviders": [], "pass": 2, "cost": { "grok": { "usd": 0.01178508, "turns": 1, "seconds": 149.7, "error": null }, "codex": { "seconds": 88.4, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a07c5d-82be-75c1-af98-264d3e72e0c5\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: phytoplankton\nRegistry id: vr.tr.phytoplankton\nPlane / domain: PHY / PHY.LIV\nRegistry definition: (none recorded)\nNames folded into this entry: (none" } } }, "metaModel": { "id": "THING-Q184755", "registryId": "vr.tr.phytoplankton", "name": "phytoplankton", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.LIV" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q184755/", "model": { "registry_id": "vr.tr.phytoplankton", "name": "phytoplankton", "purpose": "Enable an AI agent to recognise phytoplankton, assess its condition and ecological significance, and choose defensible observation or management actions while retaining uncertainty.", "definition": "Phytoplankton are free-living, predominantly microscopic photoautotrophs and mixotrophs - cyanobacteria and eukaryotic algae - that remain suspended in the photic zone of marine and inland waters and account for most aquatic primary production.", "scope_statement": "This model owns the identification, abundance, physiological condition, ecological interactions and action-relevant interpretation of phytoplankton cells, colonies, populations and assemblages within an explicit aquatic sampling context.", "in_scope": [ "Photosynthetic planktonic organisms, including relevant cyanobacteria and mixotrophic taxa", "Cell, colony, population and assemblage identity with explicit observational scale", "Abundance, biomass, composition and their spatial and temporal variation", "Photosynthetic activity, nutritional condition and viability", "Bloom development, potential harmful effects and evidence supporting intervention" ], "out_of_scope": [ "Whole-waterbody hydrology, chemistry and ecological status", "Zooplankton populations and exclusively heterotrophic plankton", "Attached periphyton, benthic algal communities and macroscopic aquatic vegetation", "Human or animal diagnoses following suspected exposure", "Water-treatment infrastructure and regulatory programme administration" ], "distinguishing_features": [ "Establish whether the observed organism or assemblage occupies the water column as plankton; distinguish persistent attachment from temporary suspension or a resting life stage.", "Establish photosynthetic capability using taxonomic or functional evidence; pigment detection alone must not establish organism identity or current activity.", "Distinguish photosynthetic or mixotrophic plankton from exclusively heterotrophic organisms without excluding a taxon merely because it also feeds on prey.", "Distinguish discrete cells or colonies from detritus, dissolved pigments and macroscopic plant fragments through suitable imaging or complementary identification.", "Distinguish a phytoplankton observation from a bloom designation: elevated abundance, visible colour and harmful effects require separate contextual evidence." ], "characteristics": [ { "name": "Observation scale and sampling support", "kind": "category", "unit_or_values": "cell, colony, population or assemblage; sampled volume, depth interval, location and time", "why_it_matters": "Prevents transferring a property measured in one cell or sample to an entire waterbody." }, { "name": "Taxonomic identification", "kind": "category", "unit_or_values": "identified taxon and rank, method, confidence and unresolved alternatives", "why_it_matters": "Constrains recognition, ecological interpretation and which hazards require investigation." }, { "name": "Trophic mode", "kind": "category", "unit_or_values": "photosynthetic, mixotrophic or unresolved; evidence and applicable conditions", "why_it_matters": "Supports inclusion decisions and avoids interpreting all nutrient acquisition as photosynthesis." }, { "name": "Cell abundance", "kind": "measurement", "unit_or_values": "cells/mL or cells/L; colony and filament counting conventions stated separately", "why_it_matters": "Tracks population change while exposing differences caused by counting methods." }, { "name": "Biovolume and biomass", "kind": "measurement", "unit_or_values": "mm³/L or µg C/L; measured or estimated, with conversion assumptions", "why_it_matters": "Distinguishes numerical dominance by small cells from dominance in living material." }, { "name": "Chlorophyll-a concentration", "kind": "measurement", "unit_or_values": "µg/L; analytical method and correction procedure", "why_it_matters": "Provides a pigment-based indicator whose relationship to biomass needs contextual interpretation." }, { "name": "Assemblage composition", "kind": "measurement", "unit_or_values": "taxon or functional-group fractions, specifying cell-count, biovolume or biomass basis", "why_it_matters": "Reveals changes concealed by total abundance or pigment concentration." }, { "name": "Physiological condition", "kind": "state", "unit_or_values": "active, stressed, senescent, resting, nonviable or unresolved; assay-specific evidence", "why_it_matters": "Separates presence from activity and supports interpretation of growth or decline." }, { "name": "Photosynthetic performance", "kind": "measurement", "unit_or_values": "assay-specific fluorescence metric or carbon fixation rate with explicit units and incubation conditions", "why_it_matters": "Tests functional activity without treating pigment abundance as a production measurement." }, { "name": "Environmental exposure", "kind": "relation", "unit_or_values": "linked light, temperature, salinity, nutrient and mixing observations matched by place and time", "why_it_matters": "Connects observed condition to plausible controls without asserting causation from coincidence." }, { "name": "Bloom trajectory", "kind": "state", "unit_or_values": "baseline, increasing, locally elevated, declining or unresolved; reference conditions and spatial extent", "why_it_matters": "Supports timely sampling and distinguishes a persistent increase from a transient accumulation." }, { "name": "Harm evidence", "kind": "state", "unit_or_values": "unassessed, suspected, measured or unresolved; effect, analyte, concentration, method and relevant receptor", "why_it_matters": "Separates taxon-based concern from demonstrated toxin presence or ecological effects." } ], "affordances": [ "Design or request depth-resolved sampling, microscopy, pigment analysis and complementary identification.", "Compare abundance and composition across observations with compatible methods and sampling support.", "Assess evidence for growth, stress, transport, accumulation or decline and identify discriminating measurements.", "Trigger targeted toxin or ecological-effect testing when observations justify concern.", "Recommend monitoring changes or refer a proposed intervention to the responsible authority with evidence and uncertainty." ] }, "sources": [ { "id": "reynolds-2006", "title": "The Ecology of Phytoplankton", "url": "", "what_it_supports": "Functional definition, assemblage structure, freshwater versus marine practice, and the quantities (biomass, production, succession) used in the field." }, { "id": "falkowski-raven-2007", "title": "Aquatic Photosynthesis (2nd ed.)", "url": "", "what_it_supports": "Photosynthetic physiology, pigment-based biomass, size-class ecology, and why mixotrophy belongs inside phytoplankton rather than a dictionary 'plant plankton' gloss." }, { "id": "field-et-al-1998", "title": "Primary production of the biosphere: integrating terrestrial and oceanic components", "url": "https://www.science.org/doi/10.1126/science.281.5374.237", "what_it_supports": "Global role of marine phytoplankton in biospheric primary production and typical oceanic production magnitudes.", "url_status": "blocked" }, { "id": "cen-en-15204-2006", "title": "EN 15204:2006 Water quality - Guidance standard on the enumeration of phytoplankton using inverted microscopy (Utermöhl technique)", "url": "", "what_it_supports": "The counting method that monitoring programmes actually use; underpins cell-abundance and biovolume measurements." }, { "id": "iso-10260-1992", "title": "ISO 10260:1992 Water quality - Measurement of biochemical parameters - Spectrometric determination of the chlorophyll-a concentration", "url": "", "what_it_supports": "Chlorophyll-a as the standard proxy for phytoplankton biomass in water-quality laboratories." }, { "id": "wfd-2000-60-ec", "title": "Directive 2000/60/EC of the European Parliament and of the Council establishing a framework for Community action in the field of water policy (Water Framework Directive)", "url": "https://eur-lex.europa.eu/eli/dir/2000/60/oj", "what_it_supports": "Phytoplankton as a biological quality element in European inland and coastal waters, and the regulatory use of composition, abundance and blooms.", "url_status": "live" }, { "id": "ioc-unesco-hab-list", "title": "IOC-UNESCO Taxonomic Reference List of Harmful Micro Algae", "url": "", "what_it_supports": "Which phytoplankton taxa are treated as harmful-algal-bloom organisms in international monitoring." } ], "structure": { "bundles": [ { "id": "identity-and-inclusion", "name": "Identity and inclusion", "description": "Determine what was observed and why it qualifies as phytoplankton.", "rationale": "Planktonic habit, photosynthetic capability and taxonomic identity require distinct evidence.", "layers": [ { "id": "planktonic-and-trophic-boundaries", "name": "Planktonic and trophic boundaries", "description": "Resolve inclusion where habitat, feeding mode or life stage complicates recognition.", "findings": [ { "id": "phytoplankton-membership", "name": "Phytoplankton membership", "description": "Record the evidence supporting inclusion and any unresolved boundary cases.", "questions": [ { "text": "What evidence establishes a planktonic habit and photosynthetic capability for the observed organism?", "kind": "definition", "id": "phytoplankton-membership-q01" }, { "text": "Is this an actively planktonic stage, a resting stage, temporarily suspended attached growth or an unresolved case?", "kind": "boundary", "id": "phytoplankton-membership-q02" } ] } ] }, { "id": "taxonomic-resolution", "name": "Taxonomic resolution", "description": "Record identification at the resolution justified by the observation.", "findings": [ { "id": "supported-taxon-assignment", "name": "Supported taxon assignment", "description": "Preserve identification evidence, alternatives and the limits of taxon-level inference.", "questions": [ { "text": "Which microscopy, molecular or other identification evidence supports the assigned taxon and rank?", "kind": "provenance", "id": "supported-taxon-assignment-q01" }, { "text": "Which look-alike taxa remain unresolved, and would resolving them change ecological or hazard interpretation?", "kind": "boundary", "id": "supported-taxon-assignment-q02" } ] } ] } ] }, { "id": "abundance-and-observation", "name": "Abundance and observation", "description": "Represent how much phytoplankton is present and what portion of the water column was observed.", "rationale": "Counts, biomass estimates and pigment signals describe different properties and sampling supports.", "layers": [ { "id": "sampling-representativeness", "name": "Sampling representativeness", "description": "Bound observations by collection method, depth, time and detection limits.", "findings": [ { "id": "sample-support-and-bias", "name": "Sample support and bias", "description": "Record the fraction of the assemblage the observation could reliably capture.", "questions": [ { "text": "What volume, depth interval, collection time and preservation procedure does this observation represent?", "kind": "provenance", "id": "sample-support-and-bias-q01" }, { "text": "Which cell sizes, fragile forms or patchy distributions could the collection and analysis methods miss or distort?", "kind": "measurement", "id": "sample-support-and-bias-q02" } ] } ] }, { "id": "quantity-and-composition", "name": "Quantity and composition", "description": "Keep cell counts, colony counts, biovolume, biomass and pigments interpretable.", "findings": [ { "id": "comparable-abundance-estimates", "name": "Comparable abundance estimates", "description": "Express quantity and taxon contributions without conflating incompatible measures.", "questions": [ { "text": "Are the reported quantities cells, colonies, filaments, biovolume, carbon biomass or pigment concentrations, and what conversions were used?", "kind": "measurement", "id": "comparable-abundance-estimates-q01" }, { "text": "Which taxa dominate by count versus biomass, and are comparisons supported by compatible sampling and analytical methods?", "kind": "measurement", "id": "comparable-abundance-estimates-q02" } ] } ] } ] }, { "id": "physiology-and-resource-use", "name": "Physiology and resource use", "description": "Assess living condition, photosynthetic performance and constraints on activity.", "rationale": "Presence and pigment concentration alone do not establish viability, production or resource limitation.", "layers": [ { "id": "activity-and-viability", "name": "Activity and viability", "description": "Separate intact or detectable material from physiologically active organisms.", "findings": [ { "id": "supported-functional-state", "name": "Supported functional state", "description": "Assign physiological interpretations only at the scale and under the conditions tested.", "questions": [ { "text": "What assay supports the inferred viability, stress state or photosynthetic activity, and under what measurement conditions?", "kind": "measurement", "id": "supported-functional-state-q01" }, { "text": "Does that assay describe particular cells, a taxon or the bulk assemblage, and what remains undetermined?", "kind": "boundary", "id": "supported-functional-state-q02" } ] } ] }, { "id": "light-and-nutrient-constraints", "name": "Light and nutrient constraints", "description": "Evaluate resource availability and distinguish proposed constraints from tested limitations.", "findings": [ { "id": "resource-limitation-evidence", "name": "Resource limitation evidence", "description": "Link condition to relevant exposures while retaining competing explanations.", "questions": [ { "text": "Which matched light and nutrient observations or enrichment experiments support the proposed limitation?", "kind": "measurement", "id": "resource-limitation-evidence-q01" }, { "text": "What additional observation would distinguish nutrient limitation, light limitation, physiological stress or alternative resource acquisition?", "kind": "action", "id": "resource-limitation-evidence-q02" } ] } ] } ] }, { "id": "assemblage-dynamics", "name": "Assemblage dynamics", "description": "Interpret changes in composition, distribution and abundance through time.", "rationale": "Local concentration changes may reflect biological change, transport or redistribution and imply different responses.", "layers": [ { "id": "growth-and-redistribution", "name": "Growth and redistribution", "description": "Distinguish changes in population size from movement or concentration within the waterbody.", "findings": [ { "id": "abundance-change-explanation", "name": "Abundance change explanation", "description": "Record evidence for competing explanations of an observed increase or decline.", "questions": [ { "text": "How have depth-resolved abundance, biomass and spatial extent changed relative to the local seasonal baseline?", "kind": "measurement", "id": "abundance-change-explanation-q01" }, { "text": "What evidence distinguishes local growth or loss from advection, mixing, sinking or surface accumulation?", "kind": "boundary", "id": "abundance-change-explanation-q02" } ] } ] }, { "id": "ecological-interactions", "name": "Ecological interactions", "description": "Link assemblage changes to consumers, pathogens and other organisms where evidence exists.", "findings": [ { "id": "interaction-driven-change", "name": "Interaction-driven change", "description": "Record measured or hypothesised interactions without treating co-occurrence as a demonstrated mechanism.", "questions": [ { "text": "Which observations support grazing, infection, competition or facilitation as contributors to the observed change?", "kind": "provenance", "id": "interaction-driven-change-q01" }, { "text": "Which interacting populations must be linked from neighbouring models to test that explanation?", "kind": "boundary", "id": "interaction-driven-change-q02" } ] } ] } ] }, { "id": "blooms-harm-and-response", "name": "Blooms, harm and response", "description": "Determine whether elevated phytoplankton warrants additional investigation or management.", "rationale": "Bloom status, harmful potential, measured effects and authority to intervene are separate decisions.", "layers": [ { "id": "bloom-and-harm-assessment", "name": "Bloom and harm assessment", "description": "Evaluate elevated abundance and possible effects using explicit local criteria.", "findings": [ { "id": "bloom-and-effect-evidence", "name": "Bloom and effect evidence", "description": "Keep bloom designation and demonstrated harm separately supported.", "questions": [ { "text": "What local baseline or applicable criterion supports calling this event a bloom?", "kind": "definition", "id": "bloom-and-effect-evidence-q01" }, { "text": "What measurements support toxin presence, oxygen depletion, shading or another suspected effect, and how is the effect linked to this assemblage?", "kind": "measurement", "id": "bloom-and-effect-evidence-q02" }, { "text": "Which concerns derive only from taxonomic identification, and which have direct effect or exposure evidence?", "kind": "boundary", "id": "bloom-and-effect-evidence-q03" } ] } ] }, { "id": "evidence-led-response", "name": "Evidence-led response", "description": "Connect observations to proportionate follow-up and externally governed intervention.", "findings": [ { "id": "justified-next-action", "name": "Justified next action", "description": "Specify an actionable next step, its evidential basis and its limits.", "questions": [ { "text": "Which finding justifies repeat sampling, targeted toxin analysis, increased monitoring or referral to the responsible operator?", "kind": "action", "id": "justified-next-action-q01" }, { "text": "Before any control measure, what evidence is needed about cell disruption, released substances, oxygen consequences and effects on other organisms?", "kind": "action", "id": "justified-next-action-q02" }, { "text": "Which current water-use criteria and responsible authority govern the proposed response?", "kind": "provenance", "id": "justified-next-action-q03" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-kinds", "name": "Kinds and varieties", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Diatoms (Bacillariophyta): silica frustules; typically dominate temperate spring blooms and much of the silica pump", "Dinoflagellates: often mixotrophic; include many toxin-producing harmful-algal-bloom species", "Coccolithophores: calcite liths; major producers of particulate inorganic carbon (e.g. Emiliania huxleyi)", "Cyanobacteria: oceanic picocyanobacteria (Prochlorococcus, Synechococcus) and bloom-forming freshwater genera (Microcystis, Dolichospermum, Planktothrix)", "Green algae and prasinophytes: especially important in lakes and as marine picoeukaryotes", "Cryptophytes: common in lakes, estuaries and deep chlorophyll maxima", "Other haptophytes (e.g. Phaeocystis): colony-formers linked to foam events and dimethylsulphide production", "Operational size classes used in sampling and remote sensing: picophytoplankton (<2 µm), nanophytoplankton (2-20 µm), microphytoplankton (20-200 µm)" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of phytoplankton this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "scheme": "Wikidata", "value_or_pattern": "Q25367", "note": "Ecological/functional grouping, not a Linnaean taxon; constituent species have their own taxon IDs." }, { "scheme": "MeSH", "value_or_pattern": "D010825", "note": "Descriptor 'Phytoplankton' in the U.S. National Library of Medicine vocabulary." }, { "scheme": "WoRMS / AphiaID", "value_or_pattern": "per constituent taxon, not for the functional group", "note": "Use World Register of Marine Species IDs on named genera/species (e.g. HAB list taxa), not on 'phytoplankton' itself." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of phytoplankton this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-standards-and-regulation", "name": "Standards and regulation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "CEN EN 15204:2006 - inverted-microscope (Utermöhl) enumeration of phytoplankton (European Committee for Standardization).", "CEN EN 15972:2011 - guidance on quantitative and qualitative investigations of marine phytoplankton (CEN).", "ISO 10260:1992 - spectrometric chlorophyll-a as a biochemical biomass proxy (International Organization for Standardization).", "EU Water Framework Directive 2000/60/EC - phytoplankton is a biological quality element for lakes, transitional and coastal waters (European Parliament and Council).", "EU Marine Strategy Framework Directive 2008/56/EC - pelagic-habitat and food-web descriptors that include phytoplankton (European Parliament and Council).", "WHO Guidelines for drinking-water quality - health-based values for cyanotoxins (e.g. microcystin-LR) produced by bloom-forming phytoplankton (World Health Organization).", "IMO Ballast Water Management Convention, regulation D-2 - discharge limits on viable organisms in the 10-50 µm and ≥50 µm size classes, which include much phytoplankton (International Maritime Organization).", "IOC-UNESCO Harmful Algal Bloom Programme and Taxonomic Reference List of Harmful Micro Algae - international HAB taxon list and monitoring guidance (Intergovernmental Oceanographic Commission of UNESCO)." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of phytoplankton this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Ship and buoy surveys, water-utility intakes and lake-bathing sites count cells (Utermöhl, flow cytometry) and extract chlorophyll-a to assess trophic state and bloom risk.", "Satellite ocean-colour missions (e.g. NASA/ESA chlorophyll and phytoplankton-functional-type products) map basin-scale biomass for fisheries, carbon-cycle and climate work.", "Shellfish and drinking-water authorities close harvests or treatment plants when toxin-producing taxa (Alexandrium, Dinophysis, Pseudo-nitzschia, Microcystis) exceed action levels.", "Aquaculture, ballast-water compliance testing and environmental-impact assessments treat phytoplankton abundance, composition and oxygen demand as operational variables." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of phytoplankton this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "quantity": "Chlorophyll-a concentration", "typical_range": "open-ocean gyres about 0.05-0.5; coastal and eutrophic waters about 1-30; dense blooms can exceed 100", "unit": "µg L⁻¹" }, { "quantity": "Cell abundance (size-class dependent)", "typical_range": "picophytoplankton often 10⁴-10⁵; microphytoplankton often 10¹-10⁴, with bloom peaks 10⁵ or more", "unit": "cells mL⁻¹" }, { "quantity": "Areal net primary production", "typical_range": "oligotrophic gyres about 50-150; productive shelves and upwelling about 500-3000+", "unit": "mg C m⁻² d⁻¹" }, { "quantity": "Carbon biomass", "typical_range": "open ocean often about 5-50; bloom waters hundreds", "unit": "mg C m⁻³" }, { "quantity": "Biovolume (freshwater monitoring)", "typical_range": "lakes commonly about 0.1-20 outside extremes", "unit": "mm³ L⁻¹" }, { "quantity": "Maximum photochemical quantum efficiency (Fv/Fm)", "typical_range": "nutrient-replete about 0.5-0.65; nutrient- or light-stressed often below 0.4", "unit": "dimensionless" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of phytoplankton this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Harmful algal blooms: neuro-, hepato- and diarrhetic toxins in seafood and drinking water (PSP, DSP, ASP, ciguatera, microcystins, cylindrospermopsin).", "Bloom collapse driving hypoxia or anoxia, fish kills and dead zones.", "Drinking-water shutdowns and recreational closures from cyanobacterial scums (taste, odour and toxin exceedances).", "Calcifying taxa (coccolithophores) lose calcification efficiency as seawater pCO₂ rises and pH falls.", "Iron or other nutrient co-limitation suppressing production in high-nutrient, low-chlorophyll ocean regions.", "Ballast-water and aquaculture transfers moving HAB taxa into new basins.", "Satellite chlorophyll biased by coloured dissolved organic matter, suspended sediment or cyanobacterial pigments, mis-stating biomass." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of phytoplankton this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-regional-variation", "name": "Regional variation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Oceanographers say 'phytoplankton'; many freshwater utilities and regulators say 'algae' or 'cyanobacteria' for the same organisms.", "Public and press language: 'red tide' (Gulf of Mexico, Japan), 'HAB' in international science and policy, local names such as 'maree rossa'.", "Assemblage geography: polar diatom/Phaeocystis systems versus subtropical gyres dominated by Prochlorococcus; Baltic summer nitrogen-fixing cyanobacteria versus North Atlantic diatom-dinoflagellate seasonal succession.", "Compliance metrics differ: EU WFD phytoplankton Ecological Quality Ratios versus U.S. EPA/state cyanotoxin advisories versus national marine monitoring (HELCOM, OSPAR) taxon lists." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of phytoplankton this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "name": "Zooplankton", "difference": "Heterotrophic metazoans and protozoa; lack chlorophyll autofluorescence and do not run oxygenic photosynthesis as their primary metabolism." }, { "name": "Phytobenthos / periphyton", "difference": "Photosynthetic assemblages attached to substrate rather than living suspended in the water column." }, { "name": "Macroalgae (seaweeds)", "difference": "Macroscopic, typically benthic thalli; not counted in pelagic cell or chlorophyll programmes as phytoplankton." }, { "name": "Heterotrophic bacterioplankton", "difference": "Non-photosynthetic bacteria; separated from cyanobacteria by absence of chlorophyll/phycobilin autofluorescence (picocyanobacteria are phytoplankton)." }, { "name": "Seston", "difference": "All suspended particulate matter, living and detrital; phytoplankton is only the photoautotrophic living fraction." }, { "name": "Ichthyoplankton", "difference": "Fish eggs and larvae collected in the same nets; metazoan and non-photosynthetic." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of phytoplankton this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "What operational inclusion rule should this registry adopt for mixotrophic organisms, temporarily suspended benthic taxa and resting stages?", "Which taxonomic references and identification-confidence conventions should govern freshwater, brackish and marine applications?", "Which counting, biovolume and pigment-conversion methods provide defensible comparability across the intended observation sources?", "Which regional baselines and water-use criteria should define bloom escalation and harmful-effect investigation?", "What minimum evidence should distinguish biological growth or loss from transport and redistribution at the model's intended spatial and temporal scales?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 18, "questions": 30 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "organism", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a phytoplankton, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise phytoplankton, assess its condition and ecological significance, and choose defensible observation or management actions while retaining uncertainty.", "characteristics": { "substance": "living", "origin": "natural", "agency": "autonomous", "mobility": "self-moving" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: Antarctic phytoplankton, nanophytoplankton, marine phytoplankton, Freshwater phytoplankton.", "4 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 60 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a phytoplankton, and on what evidence are they told apart?" ], "whatItIsMadeOf": "a living thing", "physicalCharacter": [ "Moves under its own power or of its own accord.", "Acts on its own behalf.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Recognised by diagnostic characters, and those differ by life stage - the young of many kinds are mistaken for other kinds entirely. A sighting is settled by characters, a photograph and a place, not by a name alone." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "Antarctic phytoplankton", "nanophytoplankton", "marine phytoplankton", "Freshwater phytoplankton" ] } ], "standing": "Described in 60 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 4 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one phytoplankton from another, and a phytoplankton from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a phytoplankton sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a phytoplankton from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "form-and-composition", "name": "Form, composition and condition", "description": "What a phytoplankton is made of, what shape and size it takes, and what state it is in.", "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.", "layers": [ { "id": "form-and-dimensions", "name": "Form and dimensions", "description": "Shape, size, mass and the ranges these take across examples.", "findings": [ { "id": "measurable-dimensions", "name": "Measurable dimensions and their units", "description": "The quantities worth recording and the units they are recorded in.", "questions": [ { "id": "measurable-dimensions-q01", "text": "What identifies and describes the dimensions of a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "measurable-dimensions-q02", "text": "Who or what asserted this about the dimensions of a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "measurable-dimensions-q03", "text": "What may an agent decide or do once the dimensions of a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "material-and-composition", "name": "Material and composition", "description": "Anatomy, parts and life stage.", "findings": [ { "id": "parts-and-materials", "name": "Parts and life stages", "description": "The parts of a phytoplankton and the stages it passes through.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "parts-and-materials-q02", "text": "Who or what asserted this about the composition of a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "parts-and-materials-q03", "text": "What may an agent decide or do once the composition of a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "condition-and-integrity", "name": "Condition and integrity", "description": "Wear, damage, health and the difference between working and broken.", "findings": [ { "id": "condition-assessment", "name": "Condition, damage and health", "description": "How the condition of a phytoplankton is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "condition-assessment-q02", "text": "Who or what asserted this about the condition of a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "condition-assessment-q03", "text": "What may an agent decide or do once the condition of a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "place-and-movement", "name": "Place and movement", "description": "Where a phytoplankton is, how it got there and where it may go (self-moving).", "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.", "layers": [ { "id": "location-and-placement", "name": "Location and placement", "description": "Position, containment and the reference frame the position is given in.", "findings": [ { "id": "position-and-frame", "name": "Position, container and reference frame", "description": "Where a phytoplankton is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "position-and-frame-q02", "text": "Who or what asserted this about the location of a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "position-and-frame-q03", "text": "What may an agent decide or do once the location of a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "movement-and-transfer", "name": "Movement and transfer", "description": "How a phytoplankton moves on its own.", "findings": [ { "id": "movement-events", "name": "Movement events and constraints", "description": "What counts as a movement, what records it and what limits it.", "questions": [ { "id": "movement-events-q01", "text": "What identifies and describes the movement of a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "movement-events-q02", "text": "Who or what asserted this about the movement of a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "movement-events-q03", "text": "What may an agent decide or do once the movement of a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a phytoplankton passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a phytoplankton between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a phytoplankton, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a phytoplankton is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "taxonomic-placement", "name": "Taxonomic placement and identification", "description": "What phytoplankton is called scientifically, by whose authority, and how a specimen is recognised.", "rationale": "Names change with revisions while the organism does not, so a name without its authority and date cannot be reconciled later.", "layers": [ { "id": "accepted-name", "name": "Accepted name and synonymy", "description": "The current binomial, its author and date, and the names it replaced.", "findings": [ { "id": "name-and-authority", "name": "Accepted name, authority and synonyms", "description": "What to record so a later revision can be applied without losing the old data.", "questions": [ { "id": "name-and-authority-q01", "text": "What is the accepted scientific name of phytoplankton, with its author and year, and which synonyms does it absorb?", "kind": "definition" }, { "id": "name-and-authority-q02", "text": "Which taxonomic authority is being followed, and what would a competing authority say?", "kind": "provenance" } ] } ] }, { "id": "field-identification", "name": "Field identification", "description": "The characters that separate phytoplankton from what it is confused with.", "findings": [ { "id": "diagnostic-characters", "name": "Diagnostic characters and confusable kinds", "description": "Features that settle an identification, and those that only suggest it.", "questions": [ { "id": "diagnostic-characters-q01", "text": "Which observable characters distinguish phytoplankton from its closest look-alikes, and at which life stage are they visible?", "kind": "boundary" }, { "id": "diagnostic-characters-q02", "text": "What evidence is enough to record an identification as confirmed rather than provisional?", "kind": "provenance" } ] } ] } ] }, { "id": "life-cycle-and-condition", "name": "Life stages, condition and behaviour", "description": "What phytoplankton does over its life and how its state is judged.", "rationale": "Stage and condition change what may be done - handled, treated, harvested, left alone - and both are observations with a time.", "layers": [ { "id": "stages-and-reproduction", "name": "Stages and reproduction", "description": "Development from origin to death, including forms that look like different animals.", "findings": [ { "id": "life-stages", "name": "Life stages and their marks", "description": "The stages worth recording and what tells them apart.", "questions": [ { "id": "life-stages-q01", "text": "What stages does phytoplankton pass through, and what observable change marks each transition?", "kind": "definition" }, { "id": "life-stages-q02", "text": "Which stages are so unlike the adult that they are mistaken for another kind?", "kind": "boundary" } ] } ] }, { "id": "health-and-condition", "name": "Health and condition", "description": "How condition is assessed and by whom.", "findings": [ { "id": "condition-assessment", "name": "Condition assessment", "description": "Signs of health, injury and stress, and who is competent to judge them.", "questions": [ { "id": "condition-assessment-q01", "text": "How is the condition of phytoplankton judged, on what scale, and by whom?", "kind": "measurement" }, { "id": "condition-assessment-q02", "text": "What condition obliges an agent to act, and what act is permitted to whom?", "kind": "action" } ] } ] } ] }, { "id": "range-and-status", "name": "Habitat, range and conservation status", "description": "Where phytoplankton lives and how threatened it is.", "rationale": "Range and status govern what is lawful, and both are assessments with an assessor and a year rather than facts of nature.", "layers": [ { "id": "habitat-and-range", "name": "Habitat and range", "description": "Native range, introductions and the habitat it needs.", "findings": [ { "id": "range-record", "name": "Range, introductions and habitat", "description": "What to record about where it is found and how it got there.", "questions": [ { "id": "range-record-q01", "text": "What is the native range of phytoplankton, where has it been introduced, and what habitat does it require?", "kind": "definition" }, { "id": "range-record-q02", "text": "What distinguishes a native record from an introduced or vagrant one?", "kind": "boundary" } ] } ] }, { "id": "protection-status", "name": "Protection and legal status", "description": "Conservation assessments and the rules that follow from them.", "findings": [ { "id": "status-and-rules", "name": "Conservation status and legal consequence", "description": "The assessment, its date, and what it forbids or requires where.", "questions": [ { "id": "status-and-rules-q01", "text": "What conservation status does phytoplankton hold, under which assessment and year?", "kind": "provenance" }, { "id": "status-and-rules-q02", "text": "What does that status forbid or require of an agent, and in which jurisdiction?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a phytoplankton came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a phytoplankton and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a phytoplankton is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a phytoplankton, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a phytoplankton, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a phytoplankton is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 8, "layers": 17, "findings": 19, "questions": 51 } } } }