Assessing impacts of multiple parasites on Striped Bass (Morone saxatilis) across age classes, rivers and salinity in Chesapeake Bay.
Bibliographic record
Abstract
Striped Bass (Morone saxatilis) are ecologically and economically important anadromous species that live along the East Coast of the United States between Canada and Florida. Most of the fish are born in the tributaries of the Chesapeake Bay, which is where the samples for this study were collected, including fish from the age classes: Young-Of-Year (YOY) (<1year) (n=486), juveniles(n=68) and adults(n=20). In this study, I examined the potential linkage between the health of the Striped Bass with the intensity and richness of various parasite taxa, such as acanthocephalans, nematodes, trematodes (digenea and monogenea), copepods (argulidae, caligidae and ergasilidae) and isopods. I also examined variation in parasite intensity and richness across age classes, tributaries and salinity. The Fulton’s Condition Factor (K) was used as the metric of health. Pearson’s correlation test was used to determine if there was a statistically significant difference among each variable examined and the Fulton’s Condition Factor (K). None of the results were statistically significant (p > 0.05), indicating fish with and without parasites present are in similar conditions. However, there were more Striped Bass infected with parasites (n=419, 73%) compared to those without (n=155, 27%), and many of these infected fish were YOY (n=331, 79%). Second, there was a difference between the Striped Bass collected across nine tributaries. The furthest North tributaries (Upper Bay, Rhode and Choptank) had fish with the highest parasite intensity and richness (> 100 individuals per sample). Third, there was a difference between Striped Bass collected from the various salinity ranges (0.00-12.99 ppt). The higher salinity levels (7.00-12.99 ppt) had more fish infected with high parasite intensity but less parasite variability compared to the lower salinity levels (0.00-6.99 ppt). Overall, there may be a difference in the health condition of the Striped Bass compared to non parasitized fish, but more samples across all age classes need to be collected.
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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".