Using Two Species From Common Aquatic Plants as Bio-indicators of Pollution With Hydrocarbons Compounds in Al-Kahlaa River -Missan Province/ Iraq
Bibliographic record
Abstract
Two species from common aquatic plants ( Ceratophyllum demersum and Paspalum pespaioides ) were used as bio-indicators of pollution with hydrocarbons compounds at Al-Kahlaa River in Missan province .Plant samples were collected during the period from October 2012 to November 2013. Concentrations of Total Petroleum Hydrocarbons (TPHs) in C. demersum ranged between 5 µg/g dry weight during winter and 58.97 µg/g dry weight during summer, whereas in P. pespaioides ranged between 3.18 µg/g dry weight during winter and 43.44 µg/g dry weight during summer. Also results of this study revealed a seasonal and spatial variations in concentrations of TPHs in both plants, the highest concentrations were recorded during summer whereas the lowest during winter. Results of statistical analysis revealed that there is no significant spatial variation whereas there is a significant seasonal variation in C. demersum . While results in P. pespaioides revealed that there was a significant spatial variation, whereas there is a significant seasonal variation. These plants are capable of accumulating TPHs and can be used as bio-indicators for monitoring pollution by this type of pollutants in aquatic environment.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".