Table 2 Call metrics for 11 migratory seasons spanning 2009–2021 including arrival Julian day, departure Julian day, and maximum number of consecutive days with gaps between the southward and northward passage
From: Sea ice directs changes in bowhead whale phenology through the Bering Strait
Migratory season | Southward passage Julian day (first day > 3 h with calls) | Northward passage Julian day (last day > 3 h with calls) | N max consecutive gap days (≤ 3 h with calls) |
|---|---|---|---|
2009–2010 | 322 | nd | nd |
2010–2011 | 320 | nd | nd |
2011–2012 | 315 | 136 | 55 |
2012–2013 | 309 | 130 | 48 |
2013–2014 | 304 | 114 | 18 |
2014–2015 | 318 | 128 | 3 |
2015–2016 | 314 | 130 | 13 |
2017–2018 | 316 | 113 | 7 |
2018–2019 | 326 | nd | 12 |
2019–2020 | 322 | 130 | 4 |
2020–2021 | 321 | 129 | 14 |