Recaptures of genotyped bowhead whales Balaena mysticetus in eastern Canada and West Greenland
Bibliographic record
Abstract
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials ESR 14:235-242 (2011) - DOI: https://doi.org/10.3354/esr00365 Recaptures of genotyped bowhead whales Balaena mysticetus in eastern Canada and West Greenland Ø. Wiig1,*, M. P. Heide-Jørgensen2, C. Lindqvist3, K. L. Laidre2,4, L. D. Postma5, L. Dueck5, P. J. Palsbøll6,7, L. Bachmann1 1National Centre for Biosystematics, Natural History Museum, University of Oslo, PO Box 1172 Blindern, 0318 Oslo, Norway 2Greenland Institute of Natural Resources, Box 570, 3900 Nuuk, Greenland 3Department of Biological Sciences, University at Buffalo (SUNY), Buffalo, New York 14260, USA 4Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, Washington 98105, USA 5Fisheries and Oceans Canada, Central and Arctic Region, 501 University Crescent, Winnipeg, Manitoba R3T 2N6, Canada 6Department of Genetics, Microbiology and Toxicology, Stockholm University, 10691 Stockholm, Sweden 7Department of Organismic and Evolutionary Biology, Harvard University, 16 Divinity Avenue, Cambridge, Massachusetts 02138, USA *Email: oystein.wiig@nhm.uio.no ABSTRACT: Multi-locus genotype and sex were used to identify individual bowhead whales Balaena mysticetus from 710 samples collected between 1995 and 2010 at 4 localities in eastern Canada (Foxe Basin, Pelly Bay, Repulse Bay, and Cumberland Sound) and at 1 locality in West Greenland (Disko Bay). In total, 29 recaptures of the same individuals were identified between years, of which 26 individuals were recaptured within the same locality. The remaining 3 were recaptured between sampling localities, from 2 putative International Whaling Commission (IWC) stocks: the Hudson Bay−Foxe Basin stock and the Baffin Bay−Davis Strait stock. These recaptures agree with satellite tracking results that demonstrate movement between IWC stocks and question whether these stocks are true biological entities. The intervals between capture and recapture of females in Disko Bay ranged from 1 to 8 yr. The observed number of multi-year recaptures compared to the expected numbers of recaptures did not indicate any clear cyclicity in the use of Disko Bay consistent with the notion that the migration pattern of females to this area might be tied to their reproductive cycles. A mark−recapture estimate of whales identified in 2010 compared to all identifications between 2000 and 2009 resulted in an estimate of 1410 bowhead whales (SE = 320, 95% CI: 783−2038) constituting the spring aggregation in Disko Bay. The estimate for the female portion of the aggregation was 999 individuals (SE = 231, 95% CI: 546−1452). The multi-year cycle of appearance in Disko Bay emphasizes the necessity for identifying whales over multiple years for inclusion in mark−recapture estimation. KEY WORDS: Bowhead whale · Balaena mysticetus · Genotyping · Recapture · Stock structure · Abundance · Mark–recapture Full text in pdf format PreviousNextCite this article as: Wiig Ø, Heide-Jørgensen MP, Lindqvist C, Laidre KL and others (2011) Recaptures of genotyped bowhead whales Balaena mysticetus in eastern Canada and West Greenland. Endang Species Res 14:235-242. https://doi.org/10.3354/esr00365 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in ESR Vol. 14, No. 3. Online publication date: September 23, 2011 Print ISSN: 1863-5407; Online ISSN: 1613-4796 Copyright © 2011 Inter-Research.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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".