LIPID AND LIPID SOLUBLE COMPONENTS OF GONADS OF GREEN SEA URCHIN (<i>STRONGYLOCENTROTUS DROEBACHIENSIS</i>)
Bibliographic record
Abstract
ABSTRACT Seasonal changes in the lipid and lipid soluble components of gonads of green sea urchin (Strongylocentrotus droebachiensis) were investigated. The lipid content was highest in the spring while it was lowest in the winter. The composition of nonpolar and polar lipid classes of sea urchin gonads were not affected qualitatively, but there were significant (P<0.05) quantitative variations. Major nonpolar lipid classes were triacylglycerols (TAG), free fatty acids (FFA) and sterols (ST) while dominant polar lipid components were phosphatidylcholine (PC) and phosphatidylethanolamine (PE). The fatty acids 16:0 and 14:0 were the major saturated fatty acids (SFA) consistently present in total, nonpolar and polar lipids of sea urchin gonads. The 5‐olefinic acid 20:1 n‐15 was the dominant monounsaturated fatty acid (MUFA) while 20:4 n‐6 and 20:5 n‐3 were the major polyunsaturated fatty acids (PUFA) present. The content of PUFA increased during cold climatic conditions with a simultaneous decrease in the content of SFA. These changes were reversed during warm seasons. Total carotenoid content was highest in the spring. Echininone was the major carotenoid present and its relative content varied significantly (P<0.05) with the season; being highest in the spring and lowest in the summer. In addition, β‐carotene was present in each season. Thus, the importance of seasonal variations on the lipid and lipid soluble components of sea urchin gonads is evident.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".