Growth and survival of the mussels Perna perna, Perna viridis and an undefined morphotype in suspended culture
Bibliographic record
Abstract
We evaluated the growth and influence of environmental factors under suspended culture conditions of the mussels Perna perna L. and P. viridis L. and of an undefined variant or morphotype sharing the substrate and morphological and colorcharacteristics of both species. The animals were grown for ten months at Turpialito Bay, located in the Gulf of Cariaco, Venezuela. The three experimental populations, seeded with an initial homogeneous size (45–50 mm), showed a similar growth pattern; however, P. viridis showed significantly smaller growth rates than those of P. perna and the morphotype, with a final dorsoventral shell length of 71.2, 77.0 and 77.8 mm, respectively. Correlativity analyses of environmental and growth factors could not define the somatic growth modulation due to environmental factors, but reproductive activity, particularly when it begins for the first time, may act as a negative endogenous factor. Although the results show similar physiological responses fromthe mussels, a greater similarity was observed between P. perna and the morphotype, and there were enough differences between them and P. viridis to suggest that the first two could be more genetically related. Nevertheless, differences were found between the morphotype and P. perna in regard to the phenotypic characteristics of the shell, survival and the gonadosomatic index, which may indicate significant genetic differences. Greater gonadal production in the variant could be advantageous for aquacultural activities.
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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 | 0.000 | 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".