MétaCan
Menu
Back to cohort
Record W19972459

Microzooplankton herbivory and bacterivory in the North Water Polynya

2003· dissertation· en· W19972459 on OpenAlexfundno aff
Heather Jane Bussey

Bibliographic record

VenueThe Journal of Medical Research · 2003
Typedissertation
Languageen
FieldEarth and Planetary Sciences
TopicArctic and Antarctic ice dynamics
Canadian institutionsnot available
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsMicrobial food webGrazingPhytoplanktonMicrobial loopBacterivoreHerbivorePredationBenthic zoneFood webBiologyEcologyProtistOceanographyEnvironmental scienceNutrientGeology
DOInot available

Abstract

fetched live from OpenAlex

Polynyas are regions of reduced ice cover in high latitude environments, which are ordinarily ice-covered. There are few comprehensive studies of microbial processes in polynyas although there are many of phytoplankton and metazoans which show their productivity is greater than surrounding regions. Here I report rates of growth of microbial prey and pattems of microzooplankton herbivory and bacterivory in the North Water Polynya (NOW), from April through July, 1998. Growth rates ranged from 0.0 to 1.1 day⁻¹ for phytoplankton and 0.0 to 1.2 day⁻¹ for bacteria. Highest bacterial grazing mortality was during July (1.3 day⁻¹) whereas for phytoplankton highest mortality was during late April (2.2 day⁻¹). Further investigation of protist size-dependent grazing, using high-resolution image analysis, indicated that microzooplankton were preferentially grazing small-sized bacteria. A substantial amount of carbon was channeled through the microbial food web in the NOW suggesting that microbial processes cycle large amounts of biogenic carbon in this polar region.

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)0.000
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 score0.154
Threshold uncertainty score0.306

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0000.000
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 head0.028
GPT teacher head0.315
Teacher spread0.287 · 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

Citations1
Published2003
Admission routes1
Has abstractyes

Explore more

Same venueThe Journal of Medical ResearchSame topicArctic and Antarctic ice dynamicsFrench-language works237,207