Bioaccumulation of heavy metals in the Cyprinus carpio organs of the El Izdihar dam (Algeria)
Bibliographic record
Abstract
AbstractThe objective of this study is to determine the bioaccumulation of heavy metals in different organs of Cyprinus carpio of El Izdihar dam, Sidi Abdelli (Wilaya of Tlemcen) in northwestern Algeria. This latter is an important water resource for drinking water and irrigation in the region. The Zn, Pb, Fe, Ni, Cu, and Cd elements were analyzed using the Rayleigh WFX-130 atomic absorption spectrophotometer after wet digestion by Malayandi and Barette method. The results are given in mg/kg dry weight. One way ANOVA and principal component analysis (PAC) were used to compare the data among months (levels of 0.05). Mean concentrations were found to decrease in C. carpio samples in sequence in gills and gonads as Zn > Fe > Pb > Ni > Cu > Cd, in fillets as Zn > Pb > Ni > Fe > Cu > Cd. For Zn and Fe, bioaccumulation in the gills is higher than in the gonads and fillets. For Cu and Cd: fillets > gills > gonads, and for Pb and Ni: fillets > gonads > gills. In fish samples, the concentrations of zinc, lead, and...
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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".