Hydrometeorological Parameters and Space Temporal Variation of Hydrological Parameters in Guacanayabo´s Gulf, Cuba, Relation to Pink Shrimp (<i>Farfantepenaeus notialis</i>) Catches Decrease
Bibliographic record
Abstract
The hydrological parameters of Guacanayabo’s gulf are described. Monitoring campaigns were made in 2008-2009 period, with a total of 11 expeditions: three of them in spring (April/May 2008 and May 2009), five in summer (June/July/August 2008 and June/July 2009) and three in autumn (September/November 2008 and October 2009). Samples were taken in situ at both surface and bottom to monitoring water temperature ( ? ), salinity (psu), dissolved oxygen (mg/L) and chemical oxygen demand (COD).The aim of this study is to analyze hydrological conditions variations and its possible influence in decrease of shrimp catches of Farfantepenaeus notialis in Guacanayabo’s Gulf . The results show the influence of climatic seasonality (dry and rain) in spatial distribution and seasonality of hydrological parameters. In general, seasonal and annual means are considered of GOOD quality, following Cuban Standardization NC-25 (1999) for fishing use. Although not statistical comparison was made, there are slight changes in salinity and higher tendency of decrease of dissolved oxygen when compared with the literature reported values for previous decades. The dissolved oxygen was the most variable marker, which suggests that in this system, there is an alteration, mainly in water oxygenation and that had an impact in the abundance decrease of the pink shrimp in Guacanayabo´s Gulf. No other considerable hydrological change seems to influence the general abundance of the fishing resource in the Gulf. However, the spatial differences that exist between the South and the North region do influence it.
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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 | 0.001 |
| 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".