Routine monitoring in the Maritime Provinces, Canada reveals novel records and range extensions for introduced red algal (Rhodophyta) species
Bibliographic record
Abstract
The senior author has been studying seaweed diversity in the Maritime Provinces over the past 30 years. In recent years, ongoing baseline surveys have revealed novel species and range extensions into these coastal waters. The gradual creep of Bonnemaisonia hamifera Hariot and the first records for Antithamnion cf. sparsum Tokida, Dasysiphonia japonica (Yendo) H.-S.Kim, and Lomentaria orcadensis (Harvey) Collins in the Bay of Fundy are provided. Additionally, the first Canadian records for Bangia sp. 1Asia, Callithamnion debile Harvey, and Melanothamnus japonicus (Harvey) Díaz-Tapia & Maggs are presented. Further, the overlooked species Bangia sp. 4BAN was encountered for the third time in Atlantic Canada joining two previous records in the Bay of Fundy from 2010 (Nova Scotia side) and 2020 (New Brunswick side). Similarly, the presence of Melanothamnus cf. eastwoodiae (Setchell & N.L.Gardner) Díaz-Tapia & Maggs is confirmed in Atlantic Canada having been first encountered in 2022. Finally, Dasya elegans (G.Martens) C.Agardh (previously known as Dasya baillouviana (S.G.Gmelin) Montagne) is now recognized as an introduction to the Gulf of Saint Lawrence ca. 1960 and to the Bay of Fundy presumably at some point in the past few years.
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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 | 0.002 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| 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".