GAM fit and 95% CI for mean observed catch per unit effort, 1972–1994.

<p>Note that the Y-axis scales vary with species.</p

Observed catch per unit effort for 1972–1994 combined (right Y-axis) plotted against ordinal day.

<p>The boxes show the number and range of 50% of observations in each group; bold horizontal lines in boxes indicate median number of seals caught, dots indicate outliers in the data. The left Y-axis is for the GAM smooths for each year and multi-year mean. Note that both Y-axis scales vary with species.</p

Vessel-based seal harvest totals based on sealing log books and official vessel and shore-based harvest rates according to Okhotskrybvod reports from 1972–1994 in the Sea of Okhotsk.

<p>Note that these data do not include seals harvested in the west coast of Kamchatka (under jurisdiction of Kamchatrybvod). Abundance estimates are based on available population aerial survey results.</p

Seal harvest locations in the Sea of Okhotsk in April-July, 1972–1994 combined.

<p>Sea ice extent [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0182725#pone.0182725.ref012" target="_blank">12</a>] is provided for illustrative purposes for the year of 1980 (high ice year).</p

Karyotype evolution pathways in Pinnipedia.

<p>Karyotype evolution pathways in Pinnipedia.</p

GTG-banded karyotype of the Steller sea lion (<i>Eumetopias jubatus</i>, 2n = 36) with the assignment of homology to human (HSA), dog (CFA) and stone marten (MFO) chromosomes.

<p>The square denotes the centromere position on corresponding chromosome. *—segments were not painted by any dog probe.</p

Ancestral carnivore karyotype (ACK).

<p>Numbers on the left are HSA and CFA chromosomes. Numbers on the right of each ancestral chromosome are ACK chromosomes according to nomenclature of Murphy et al [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147647#pone.0147647.ref026" target="_blank">26</a>] followed by cat (FCA) homology [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147647#pone.0147647.ref013" target="_blank">13</a>]. MFO chromosome numbers are indicated right below the ancestral chromosome. Big numerals below correspond to Nash et al. [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147647#pone.0147647.ref047" target="_blank">47</a>] ACK nomenclature. The proposed ancestral order of syntenic segments corresponding to dog chromosomes is based on parsimony analyses of chromosome painting data of canid painting probes in Carnivora and two outgroup species: pig and human, [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147647#pone.0147647.ref018" target="_blank">18</a>,<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147647#pone.0147647.ref019" target="_blank">19</a>,<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147647#pone.0147647.ref053" target="_blank">53</a>]. We exchanged ACK11 and ACK12 relative to ACK published in [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147647#pone.0147647.ref011" target="_blank">11</a>] to match chromosome order [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147647#pone.0147647.ref047" target="_blank">47</a>] and to be arranged according to the chromosome size in cat and stone marten karyotypes.</p

GTG-banded karyotype of walrus (<i>Odobenus rosmarus</i>, 2n = 32) with the assignment of homology to human (HSA), dog (CFA) and stone marten (MFO) chromosomes.

<p>The square denotes the centromere position on corresponding chromosome. *—segments were not painted by any dog probe.</p

Examples of localization of dog (A-C) and human (D-F) painting probes with GTG-banding of the same metaphase to the right.

<p>(A) CFA1/26 on EJUB chromosomes; (B) CFA 21+23/18 on OROS chromosomes; (C) CFA16/21+28 on PSIB chromosomes; (D) HSA 19/3 on OROS chromosomes; (E) HSA12/16 on PSIB chromosomes; (F) HSA7/1 on OROS chromosomes.</p

Correspondence of pinniped (the Steller sea lion, the walrus, the Baikal seal and the common seal¹) chromosomes with dog, human, ancestral carnivore karyotype (ACK²), stone marten³ and cat³ chromosomes.

<p>Correspondence of pinniped (the Steller sea lion, the walrus, the Baikal seal and the common seal<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147647#t002fn002" target="_blank">¹</a>) chromosomes with dog, human, ancestral carnivore karyotype (ACK<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147647#t002fn003" target="_blank">²</a>), stone marten<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147647#t002fn004" target="_blank">³</a> and cat<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147647#t002fn004" target="_blank">³</a> chromosomes.</p