Genetic Characterization of the Northern Shrimp, <i>Pandalus borealis</i> in the Northwest Atlantic Using Electrophoresis of Enzymes
Bibliographic record
Abstract
The genetic variability of the northern shrimp, Pandalus borealis, collected in the Saguenay Fjord, in six areas of the Estuary and the Gulf of St. Lawrence, and in two areas off the Labrador coast was assessed using eight enzymatic loci. Males, primiparous and multiparous females were sampled at all but one site in order to determine if gene frequencies within these regions of the Northwest Atlantic are temporally stable. For this protandrous species, variation of the genetic characteristics on a geographic scale and among maturity stages was largely determined by the variation occurring at the EST*, HK-1* and to a lesser extent at the HK-2* loci. The other loci did not vary significantly either on geographic or temporal scales. Deviations from Hardy-Weinberg expectations, all of them due to deficits in heterozygotes, were observed mainly at the same three loci and the number of deviations increased when males, primiparous and multiparous females were pooled. A cluster analysis of genetic distance did not reveal geographic patterns in the clustering of the samples. Although some rare private alleles were detected in the Gulf of St. Lawrence samples, the data suggest that gene flow is extensive across the study area.
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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 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.002 | 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 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".