A grey whale off the coast of Vancouver Island is being monitored by Canadian and U.S. researchers, as it has developed lesions after being tagged last year. To try and prevent systemic infection from developing, the team administered antibiotics to the whale on March 31 and April 1. (Photo from the NOAA Fisheries website)

A grey whale off the coast of Vancouver Island is being monitored by Canadian and U.S. researchers, as it has developed lesions after being tagged last year. To try and prevent systemic infection from developing, the team administered antibiotics to the whale on March 31 and April 1. (Photo from the NOAA Fisheries website)

Tagged grey whale off Vancouver Island given treatment after developing lesions

Canadian and U.S. whale experts administered antibiotics to the animal on March 31, April 1

A grey whale off the coast of Vancouver Island is being monitored by Canadian and U.S. researchers, as it has developed lesions after being tagged last year.

Three grey whales from the Pacific Coast feeding group were satellite tagged off the coast of Washington in September 2020 by the U.S. National Oceanic and Atmospheric Administration – NOAA Fisheries. The tagging is part of a research project on the group of whales, conducted in collaboration between NOAA Fisheries, Fisheries and Oceans Canada and the Vancouver Aquarium.

The tags are aimed to gather information about whales’ behaviour, breeding areas, habitat, feeding and migratory patterns.

“We photographed this particular whale on Sept. 4 prior to tagging. At the time, we determined that the whale was in good condition and was a good candidate for tagging,” said Sharon Melin program manager for the California Current Ecosystem Program at NOAA Fisheries. “We only undertake tagging when we are confident the risk to the animal is low.”

READ ALSO: Rare bird spotted at Vancouver Island backyard feeder

The groups have been monitoring the whale over several months and collected images of it on Sept. 25, Oct. 4 and Dec. 9, 2020, with no abnormalities. However, on March 16, the whale was reported to have a wound around the tagging site, as well as two more lesions on the opposite side of its body.

A panel of U.S. and Canadian whale experts was formed following the veterinarian’s report, who gathered more information on the whale’s condition, and developed a response plan.

Dr. Martin Haulena, a veterinarian with the Vancouver Aquarium and Marine Mammal Rescue, said the wound near the tagging site appeared to have a radius of about 20 to 30 cm, and the corresponding patches were about the same size. It is still unknown why the lesions on the opposite side of the whale’s body occurred, and whether or not they are related to the tagging site.

To try and prevent anything more serious – such as systemic infection – from developing, the team administered antibiotics to the whale on March 31 and April 1. Antibiotics were administered using a CO2 rifle, which shot darts carrying the medicine into the whale’s body.

Along with the antibiotics, the team also collected a breath sample to further evaluate the whale’s well-being, and sample for any bacterial, viral and fungal pathogens of concern.

“The observed animal was also coughing up a little bit of mucus while moving, suggesting irritation in the airway. Antibiotics will help against any respiratory infection as well,” said Haulena.

The panel will continue to monitor the whale but has agreed the lesions did not pose an imminent danger to the animal’s health.

READ ALSO: Sea lion randomly spotted on remote B.C. logging road

It can take anywhere from four months to a year for a tag to migrate out of a whale’s body. The tags act in a similar way as a splinter would in a human, and are designed to eventually work their way out of the whale’s body as the site continues to heal. Tags are implemented into the dorsal midline of the whale.

“We are hopeful that once this satellite tag is extruded, the tissue around the tagging site will heal. But we will continue to monitor the whale’s condition closely,” states the NOAA website. The satellite tag on this whale is said to be the last one remaining.

This tagging study was conducted to learn about the approximately 250 grey whales who make up the Pacific Coast feeding group. The group is part of the eastern north pacific grey population, which totals about 20,000.

“This group is so unique that they don’t migrate like the larger population does. Most travel to Alaska during the summer for breeding, but this group stops off our coast and spends the summer feeding here,” said Melin.

“We don’t know whether they stay all year round, and satellites help us find more information about how they are using the habitats and where they move. We consider them unique and we want to learn more about them.”


Do you have a story tip? Email: vnc.editorial@blackpress.ca.

Follow us on Twitter and Instagram, and like us on Facebook.

Whales

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

The red rock garden in Williams Lake was filled with new rocks in recognition of the National Day of Awareness of Missing and Murdered Indigenous Women Wednesday, May 5, 2021. (Angie Mindus photo - Williams Lake Tribune)
Red rocks left as reminder of missing and murdered local women in Williams Lake

May 5 marked the National Day for Missing and Murdered Indigenous Women and Girls

A woman wears a face mask and shield to curb the spread of COVID-19 while walking in North Vancouver, B.C., on Wednesday, January 6, 2021. THE CANADIAN PRESS/Darryl Dyck
57 new cases of COVID-19 in Interior Health region

Thirty people in the region are in hospital, 16 of whom are in intensive care

Kari, a 12-year-old Belted Galloway, produced triplets Wednesday, April 27. Mother and babies are doing fine. (Kelly Sinoski photo -100 Mile Free Press).
Holy cow: triplets born in 100 Mile House

Linda and Don Savjord witnessed a rare experience last week at Bridge Creek Ranch.

Fireman’s Fairways between Chimney and Felker lakes is slated to open soon, following a clean up work bee this Sunday, May 9 starting at 10 a.m. (Photo submitted)
Cleanup slated for Sunday, May 9 at Fireman’s Fairways Golf Course

Fireman’s Fairway is an 11-hole, par 3 course, opened in 1994

A vial of the AstraZeneca COVID-19 vaccine is shown at a facility in Milton, Ont., on Wednesday, March 3, 2021. The White House says it is making plans to share up to 60 million doses of the Oxford-AstraZeneca COVID-19 vaccine. THE CANADIAN PRESS/Carlos Osorio - POOL
65 new cases of COVID-19 in Interior Health

The total number of cases in the region is now at 11,075 since the pandemic began

Jose Marchand prepares Pfizer COVID-19 vaccination doses at a mobile clinic for members of First Nations and their partners, in Montreal, Friday, April 30, 2021. The National Advisory Committee on Immunization is coming under fire after contradicting the advice Canadians have been receiving for weeks to take the first vaccine against COVID-19 that they’re offered. THE CANADIAN PRESS/Ryan Remiorz
Trudeau says he is glad he got AstraZeneca, vaccines are only way out of pandemic

‘The most important thing is to get vaccinated with the first vaccine offered to you’

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

B.C.’s provincial health officer, Dr. Bonnie Henry. THE CANADIAN PRESS/Jonathan Hayward
Dip in COVID-19 cases with 572 newly announced in B.C.

No new deaths have been reported but hospitalized patients are up to 481, with 161 being treated in intensive care

Solar panels on a parking garage at the University of B.C. will be used to separate water into oxygen and hydrogen, the latter captured to supply a vehicle filling station. (UBC video)
UBC parkade project to use solar energy for hydrogen vehicles

Demonstration project gets $5.6M in low-carbon fuel credits

FILE – A student arrives at school as teachers dressed in red participate in a solidarity march to raise awareness about cases of COVID-19 at Ecole Woodward Hill Elementary School, in Surrey, B.C., on Tuesday, February 23, 2021. THE CANADIAN PRESS/Darryl Dyck
B.C. ‘should be able to’ offer 1st dose of COVID vaccine to kids 12+ by end of June: Henry

Health Canada authorized the vaccine for younger teens this morning

A woman in the Harrison Mills area was attacked by a cougar on Tuesday, May 4. B.C. Conservation Officers killed two male cougars in the area; the attack was determined to be predatory in nature. (File photo)
2 cougars killed following attack on woman in Agassiz area

Attack victim remains in hospital in stable condition

A woman wears a face mask and shield to curb the spread of COVID-19 while walking in North Vancouver, B.C., on Wednesday, January 6, 2021. THE CANADIAN PRESS/Darryl Dyck
B.C. CDC updates info, acknowledging small respiratory droplets can spread COVID-19

Large droplets, not aerosols had been fixture of public health messaging for many months

A picture of Shirley Ann Soosay was rendered from a postmortem photographer and circulated on social media. (DDP graphic)
B.C. genealogist key to naming murder victim in decades-old California cold case

In July 1980, Shirley Ann Soosay was raped and stabbed to death

Most Read