New orca baby doing well, closely linked
to 43-year-old female
The young killer whale born into J pod three weeks ago still appears to be doing well, according to Dave Ellifrit of the Center for Whale Research, who observed the calf when her pod came through the San Juan Islands on Monday.
The new calf, J-50, has been sticking close to J-16, a 43-year-old female and her likely mom.
Photo by Dave Ellifrit, Center for Whale Research
In his written notes, Dave said the calf, designated J-50, was staying close to J-16, a 43-year-old female named "Slick." Meanwhile, Slick's daughter, 16-year-old J-36 or Alki, remained some distance away.
Uncertainty has surrounded the question of whether J-16 is the mother or the grandmother of the new calf. If she's the mother, it will be the first time that an orca over 40 has been known to give birth, at least among the three pods that frequent Puget Sound.
As Dave noted in his observations:
"While all the J16's traveled together, J36 was consistently the farthest of the group from J50, so whatever doubts remained about J16 being the mother are about gone."
Ken Balcomb, who founded the Center for Whale Research, was not with Dave during the encounter. Ken agrees that current evidence points to J-16 being the mom, but he is still not totally convinced.
"I'm staying open," he told me. "J-16 is certainly the primary caregiver."
There remains a little matter of the "rake marks" on the back of the baby orca — most likely caused when an adult whale used its teeth to pull the newborn from the birth canal. A 16-year-old female might need some help during delivery, Ken explained, and the grandmother was the likely one to assist. Such help probably would not be needed for an older mom, he said.
Jan. 12-15.Satellite tracking reveals that J pod came back from the ocean on Monday, Jan. 12, and traveled through the Strait of Juan de Fuca, reaching Victoria the evening of Tuesday, Jan. 13. The orcas passed the San Juan Islands overnight and reached the northeast side of Texada Island the morning of Thursday, Jan. 15. // Map courtesy of NOAA
I thought that the proof of motherhood would come when we knew who was nursing the baby. While nobody has directly observed any nursing behavior over the past three weeks, the baby is fattening up and staying near enough to J-16 to allow such things to happen.
But Ken says it is possible that J-16 could be lactating — even if she is the grandmother. It's happened in older pilot whales, he noted.
"It is not beyond the realm of possibility that a grandmother could play the nurse-maid role," he said.
Jan. 15-17. The whales continued north of Texada Island, then turned around and passed the island going south. // Map courtesy of NOAA
There will be no certainty about the lineage, he said, until genetic testing is performed, and that could take years — assuming the calf survives. Such tests could come as the result of fecal sampling or a skin biopsy performed by approved researchers following the whales, he said.
Meanwhile, since the calf was born, J pod has been moving around the inland waterways and well up into the Strait of Georgia in Canada, as revealed by a satellite transmitter carried by J-27, a 24-year-old named Blackberry.
Jan. 17-21. The J pod whales traveled south from Texada Island and passed through the San Juan Islands by Monday afternoon of this week. From there, they made a straight run to the ocean, then turned around on Tuesday and headed back by yesterday afternoon — this time accompanied by K pod, according to observers. // Map courtesy of NOAA
A couple times in the past two weeks, the whales went through the Strait of Juan de Fuca and into the Pacific Ocean. But each time they quickly turned around and came back,
Last night, Mark Malleson of Prince of Whales, a whale-watching company, observed J pod along with K pod spread out in the Strait of Juan de Fuca near Sheringham Point near the south tip of Vancouver Island, according to his report posted on Orca Network's Facebook page.
So far today, I have not heard any more reports, and the next satellite data won't be available until later.
The succession of maps on this page shows the travels of J pod since they touched the outer coast 10 days ago. (Click on the images to enlarge.)
January 22, 2015 Marine mammals, ResearchCenter for Whale Research, Cetaceans, Ken Balcomb, killer whale, National Oceanic and Atmospheric Administration, Orca, Satellite tracking
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