← Back to catalogue
Published

benthos

vr.tr.benthos-tops · thing-benthos-tops

Let an agent handle benthos by habitat, organisms, sampling, ecological role and pressures.

Thing Registry Cross-cutting context XCT.TOP
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Community Which benthos.

Habitat

Marine or freshwater.

Habitat

Habitat.

  1. In which water body and substrate does the community live? definition
  2. At what depth? measurement

Organisms

Taxa.

Organisms

Organisms.

  1. Which organisms dominate? provenance
  2. Who identified them? provenance
Sampling Methods.

Methods

Grabs and cores.

Methods

Sampling methods.

  1. Which sampling method was used? provenance
  2. Does it follow a standard? provenance

Identification

Taxonomy.

Identification

Identification.

  1. To which taxonomic level were organisms identified? definition
  2. Was quality assurance applied? provenance
Quality Bioindicators.

Indices

Status.

Indices

Quality indices.

  1. What does the benthic index say about water quality? measurement
  2. Which index is used? provenance

Trends

Change.

Trends

Trends.

  1. How has the community changed over time? provenance
  2. Why? provenance
Pressures Threats.

Trawling

Physical damage.

Trawling

Bottom trawling.

  1. Is the habitat affected by bottom trawling? boundary
  2. Are protected areas in place? provenance

Pollution

Oxygen and chemicals.

Pollution

Pollution.

  1. Is oxygen depletion or pollution affecting it? boundary
  2. What monitoring shows? provenance

Classifiers Filled

Family
Thing Registry
Category
Cross-cutting context
Entry kind
noun.Tops
Plane
XCT
Domain
XCT.TOP
Facets: substance
abstract
Facets: origin
conceptual
Facets: agency
inert
Facets: mobility
not-applicable
Facets: scale
not-applicable
Facets: affordances
observable
Other names and narrower kinds
marine benthos, epipsammon, endopsammon, epixylon, merobenthos, epipelon, microbenthos

What it is Filled

The community of organisms, plants, animals and microbes, that live on, in or near the bottom of a sea, lake, river or stream, with subdivisions such as epipsammon (on sand), endopsammon (in sand), epixylon (on wood) and epipelon (on mud).

Why it exists Filled

Let an agent handle benthos by habitat, organisms, sampling, ecological role and pressures.

Distinguishing features Filled

  • Bottom-dwelling community
  • Marine and freshwater
  • Used as bioindicators
  • Sensitive to trawling and pollution

What robots and AI may and may not do Filled

Must not

  • Disturb protected seabed or riverbed habitats beyond what a survey permit allows.
  • Misreport survey results in a way that hides pollution or habitat damage.
  • Introduce organisms from one water body into another during sampling.

Only with a human decision

  • Approving dredging, trawling or works that disturb the bottom of a protected water body.

May

  • Report surveys of bottom-dwelling communities from monitoring programmes and cite their methods.
  • Use benthic indicators to describe the ecological state of a water body.

Moral aspects Filled

  • Bottom communities are slow to recover from trawling, dredging and pollution.
  • Benthic monitoring informs decisions on fisheries and water quality that affect livelihoods.

Who is affected

  • The organisms themselves
  • Fishers and communities depending on the water
  • Downstream ecosystems

Owners Filled

Steward

Nobody: wild and held in common; environmental authorities oversee monitoring and protection.

Master systems

  • National water and marine monitoring databases
  • Biodiversity occurrence databases

Links to other meta-models Filled

parent

  • oewn-00004475-n - registry parent class

related

  • ecological community - category
  • sediment and seabed - habitat
  • plankton and nekton - other communities
  • water quality assessment - application

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.benthos-tops
  • Open English WordNet: oewn-00005787-n

Direct properties not applicable Not applicable

Not applicable

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Organisms on or in the bottom
  • Subdivisions by substrate
  • Plankton and nekton live in open water
  • Worms, molluscs, crustaceans, insect larvae, algae and microbes on and in bottom sediments.

Capabilities and actions required Filled

  • sample and identify benthic organisms
  • use benthos to assess water quality
  • protect benthic habitats
  • study food webs

Hazards and failure modes required Filled

  • Habitat damage from bottom trawling
  • Pollution and oxygen depletion
  • Misidentification in surveys

Standards and interfaces required Filled

  • EU Water Framework Directive biological quality elements
  • EU Marine Strategy Framework Directive
  • ISO 16665 marine soft-bottom macrofauna sampling

Context of use required Filled

  • A key part of aquatic ecosystems and an indicator of water quality.
  • marine benthos
  • freshwater benthos
  • macrobenthos and meiobenthos
  • phytobenthos and zoobenthos
  • substrate-based groups such as epipelon

Sources Filled

  1. Open English WordNet 2024, synset oewn-00005787-n - sense and gloss of the concept
  2. Wiktionary: benthos - word senses and usage

Open questions

  • Should benthic subdivisions be separate entries?
  • How should survey data be linked?
  • How should indicator indices be recorded?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-benthos-tops/spec.json