A New Genus and Species of Gyrodactylid (Monogenea) From Silver Hake, Merluccius Bilinearis, in the Bay of Fundy, New Brunswick, Canada
Bibliographic record
Abstract
Gyrocerviceanseris passamaquoddyensis n. gen., n. sp. is described from the gills of silver hake, Merluccius bilinearis , in Passamaquoddy Bay, southwestern New Brunswick, Canada. Diagnostic features include an oval haptor with asymmetrically distributed marginal hooks (3 pairs anterior, 5 pairs posterior) and a prominent muscular flange on the lateral margins, between the anterior and posterior groups of hooks. The hamuli are well developed, with a straight point, a short shaft, and an elongate, blade-like ventral root having a ventrally directed, gooseneck-shaped tip. The ventral bar is rectangular, with a small, hourglass-shaped posterior membrane. There is no dorsal bar. The marginal hook sickle is sharply curved, with a long fine point, an upturned toe, a small heel, and a straight handle. A partial DNA sequence from 18S rDNA was generated and found to be over 11% divergent from its closest matches in GenBank. However, it was less divergent (7.8%) from a previously unpublished sequence of Gyrodactylus emembranatus Malmberg, 1970 , suggesting this species is its closest known relative. Interestingly, both species have almost identical marginal hook sickles and a male copulatory organ (MCO) with small spines in multiple arched rows. Gyrocerviceanseris n. gen. is the sixth genus of viviparous monogeneans to be described from marine and estuarine fishes of the northwestern Atlantic Ocean.
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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 | 0.000 | 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) | 0.002 | 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".