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Record W2373382597 · doi:10.1016/s0967-0653(97)82046-7

10.1016/s0967-0653(97)82046-7

2000· article· en· W2373382597 on OpenAlexvenueno aff
Shi Xinlu, Xinbai Shi

Bibliographic record

VenueTime to knit · 2000
Typearticle
Languageen
FieldEnvironmental Science
TopicAquatic Ecosystems and Phytoplankton Dynamics
Canadian institutionsnot available
Fundersnot available
KeywordsParthenogenesisBiologyReproductionInstarCladoceraZoologySexual reproductionDaphniaJuvenileBranchiopodaEcologyAnimal scienceLarvaCrustaceanEmbryoFishery

Abstract

fetched live from OpenAlex

The reproduction, life span and embryonic development of Simocephalus himalayensis microdus were studied. The results showed that the animal undergoes four juvenile instars, fifteen adult instars and an average life span of 48. 7± 8. 92 days at 20± 1 ℃. The average individual comulative egg production is 361. 1± 21. 50 and maximum reproduction is attained in the 10th instar (6th adult instar). It has been shown that the body-length and the quantity of egg reproduction of the first generation individuals from the winter eggs (fertilized eggs) are higher than those of their next generation from parthenogenetic eggs. Unlike many species in the genus Daphnia, the sexual reproduction of the present species is related to the lowered temperature instead of to the scarcity of food. Therefore it belongs to the monocyclic type in nature, i. e. only one sexual reproductive climax appears in the autumn when the water temperature drops. A special copulational behaviour before oviposition has been observed, and this is an adaptation to the backstrode swimming behavior of the species. Detail descriptions on the development in both winter and parthenogenetic eggs are presented.

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)0.002
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.014
Threshold uncertainty score0.019

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.001
Meta-epidemiology (narrow)0.0030.001
Meta-epidemiology (broad)0.0020.002
Bibliometrics0.0030.002
Science and technology studies0.0020.002
Scholarly communication0.0040.006
Open science0.0040.004
Research integrity0.0060.003
Insufficient payload (model declined to judge)0.9860.989

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 head0.005
GPT teacher head0.161
Teacher spread0.156 · 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; the direct Gemma label and the distilled Codex classifier agree on what is shown here.

Study designNot applicable
Domainnot available
GenreOther

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

Citations4
Published2000
Admission routes1
Has abstractyes

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