Seasonal digestive/metabolic flexibility in juvenile detritivore marine estuarine-dependent fish <i>Mugil liza</i> (Mugilidae)
Bibliographic record
Abstract
Many organisms inhabiting heterogeneous habitats with seasonal changes in key environmental factors exhibit digestive/metabolic flexibility at different levels (e.g., biochemical and morphological). However, integrative studies in the wild on groups of ecological and economic importance such as detritivore marine estuarine-dependent fishes while inhabiting estuaries or coastal lagoons are lacking. This study analyzed juvenile Mugil liza Valenciennes, 1836 inhabiting Mar Chiquita Coastal Lagoon (Argentina) caught in autumn (5 °C) and spring (25 °C). We determined: digestive enzyme activities in the intestine; morphological traits; and, energy reserves in liver and muscle. Amylase, lipase, trypsin, and aminopeptidase-N activity increased in spring (270%, 33%, 270%, and 90%, respectively) while maltase and sucrase activity decreased (54% and 55%, respectively). Intestinal coefficient increased (18%) in spring. No changes occurred in hepatosomatic index, glycogen, and free glucose concentration. Triglycerides and protein concentration were higher in spring in both the liver (16% and 41%, respectively) and the muscle (25% and 26%, respectively). The results show a specific and differential modulation of key components of carbohydrate, lipid, and protein metabolism in spring, pointing out the occurrence of seasonal digestive/metabolic flexibility in juvenile Mugil liza in the wild which would allow them to support changes in key external factors.
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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".