The impact of noise on the stress response of <i>Portunus trituberculatus</i> in a land-based monoculture system
Bibliographic record
Abstract
Human-induced noise, particularly from shipping and construction, significantly affects the stress responses of swimming crabs ( Portunus trituberculatus (Miers, 1876)). Prolonged exposure can lead to stress responses, impacting the overall health of the crabs. This study aimed to assess how noise affects stress responses in P. trituberculatus. The sound had an intensity of 163 dB 1 µPa for the noise condition and 114 dB 1 µPa for ambient sound. Portunus trituberculatus was continuously exposed to the noise stimulus for 6 h. Samples of serum, muscle tissue, gills, and hepatopancreas were collected at multiple time points: 0 min, 10 min, 30 min, 1 h, 3 h, 6 h, and 7 h. The serum cortisol levels in the noise-exposed group were significantly higher than those in the control group at 30 min and 6 h. The two groups had no significant differences regarding serum glucose and muscle lactic acid content. In the noise-exposed group, the gills exhibited significantly lower superoxide dismutase (SOD) levels. Conversely, for the hepatopancreas, the SOD levels in the noise-exposed group were notably lower than those in the control group at 10 min but significantly higher at 6 and 7 h. Malondialdehyde (MDA) levels were substantially higher in the noise-exposed group than in the control group at 30 min and 6 h. This study demonstrates that P. trituberculatus experiences a physiological stress response to acoustic sounds.
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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 | 0.001 | 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) | 0.000 | 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".