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Record W7099801981

Using Size Structure as a Monitoring Index of Zooplankton Population Dynamics and Ecosystem Production

2016· article· en· W7099801981 on OpenAlexaboutno aff

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldArts and Humanities
TopicLiterary, Cultural, Historical Analysis
Canadian institutionsnot available
Fundersnot available
KeywordsPrimary productivityBiomass (ecology)Environmental factorPopulationTransectZooplankton
DOInot available

Abstract

fetched live from OpenAlex

Les mesures basées sur la taille ont récemment émergées comme un index intéressant pour caractériser la dynamique du zooplancton et la production d’un écosystème. Dans ce contexte, la collecte de données sur la taille des organismes obtenues par un compteur de plancton optique au laser (LOPC: Laser\tOptical\tPlankton\tCounter) mène tout naturellement au développement d’outils d’analyse très puissants qui sont basés sur l’utilisation d’une représentation log-log de la biomasse ou du spectre de taille de la biomasse normalisée (NBSS: Normalized Biomass Size\tSpectrum). La forme ou la courbature de NBSS peut nous fournir une mesure ou un index de l’état de pauvreté ou de produc-tivité de la communauté planctonique. Récemment, le développement d’un modèle spécifique utilisant la pente de la courbe NBSS a conduit au calcul direct du nombre de niveaux trophiques dans la communauté zooplanctonique et des exemples de cette application sont présentés ici pour le transect de Halifax (PMZA) sur le plateau Néo-Écossais, au printemps et à l’automne. D’autres exemples illustrent également l’utilité de la courbe NBSS pour isoler les pics de distribution des stades Calanus\tfinmarchicus IV-V et pour mesurer des concentrations aussi faible que 10-0 organismes m-3. Un dernier exemple d’un développement récent consiste en un LOPC monté sur un dériveur Lagrangien (SOLO)

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.032
Threshold uncertainty score0.064

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.020
GPT teacher head0.224
Teacher spread0.204 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2016
Admission routes1
Has abstractyes

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