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Record W1579478942 · doi:10.1163/156853900502394

PECTORAL FIN ASYMMETRY, DIMORPHISM AND FECUNDITY IN THE BROOK STICKLEBACK, CULAEA INCONSTANS

2000· article· en· W1579478942 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueBehaviour · 2000
Typearticle
Languageen
FieldMathematics
TopicMorphological variations and asymmetry
Canadian institutionsUniversity of Winnipeg
Fundersnot available
KeywordsBiologyFish finSexual dimorphismFecundityDorsal finPopulationCourtshipAnatomyTeleosteiCourtship displayZoologyFish <Actinopterygii>DorsumDemographyFishery

Abstract

fetched live from OpenAlex

Abstract Sexual dimorphism in the pectoral fins of a C. inconstans population produces males whose fins are relatively larger than those of females. This difference may result from the unique demands placed on the fins during the male's courtship dance and fanning behaviour during the parental phase. Males and females are also dimorphic in terms of fluctuating asymmetry (FA) of pectoral fin ray number, which is lowest in females. Females with symmetric fin ray counts averaged about 15% more eggs per clutch than females with asymmetric fin ray counts. The ovaries of symmetric females were an average 6.5% heavier than those of asymmetric fish. The difference in fecundity is statistically significant and similar in two samples collected from the same site and separated by a time span of 19 years. This is the first report of a correlation between FA and fecundity in a fish population.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.163
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
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 head0.045
GPT teacher head0.307
Teacher spread0.262 · 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