Scientists from Fisheries and Oceans Canada, and the University of Victoria perform a necropsy (examination of an animal’s body after death) on a sixgill shark that washed up on a north Saanich beach in early February. PHOTO COURTESY PETER MIERAS

Scientists from Fisheries and Oceans Canada, and the University of Victoria perform a necropsy (examination of an animal’s body after death) on a sixgill shark that washed up on a north Saanich beach in early February. PHOTO COURTESY PETER MIERAS

Alberni Valley ocean advocate documents shark necropsy

Peter Mieras runs annual shark survey, is known for ‘ghost’ fishing gear recovery efforts

Peter Mieras of Rendezvous Dive Adventures in Rainy Bay is a diver, a filmmaker and citizen scientist who has run a sixgill shark survey project for almost a decade. On Feb. 7 he was invited to document a necropsy done on a sixgill shark that had washed up on a beach near Saanich earlier that week.

READ: 10-foot-long shark washes ashore on B.C. beach

READ: Mystery 10-foot shark that washed ashore identified

A necropsy is like an autopsy on an animal; the examination of an animal carcass after death.

“I was very excited to be invited to document the necropsy done by DFO (Fisheries and Oceans Canada) and UVic last Thursday,” Mieras said.

He arrived at Coles Bay beach early Thursday morning and was dismayed to discover the shark’s head had been chopped off and the rest of the carcass left in the water. “I was shocked that someone had stolen the head and jaw the evening before,” he said.

“Not only is this shark a species listed under SARA ( Species at Risk Act) and taking parts without permission is illegal, but it also deprived many of the interested individuals from the general public a chance to fully appreciate this animal. And of course the loss of information that might have been obtained.”

RELATED: Dead 12–14 ft. shark found in Alberni Inlet

Because Mieras arrived at the beach two hours before the team of scientists did, he became an impromptu shark educator for the steady stream of onlookers. “The majority of interested people were parents with children and I really enjoyed giving them a basic idea of shark anatomy, biology and behaviour for this species,” Mieras said.

“One of the things that interested many, was the skin of the shark. It has scale-like teeth over its surface. This helps the water flow easier past the skin, thus making swimming for the shark more efficient—much like a golf ball has dimples that helps it fly better through the air. So when you run your hand over the skin from tail to head it is rough like sandpaper. When you run in the same direction as the water runs when the shark swims its skin is very smooth.”

Many of the lab people who showed up were former divers and some have participated in Mieras’ shark survey week in Barkley Sound.

Once the necropsy began, “a stringent protocol was followed and muscle samples, fin clippings, organs and other tissues were secured for further analysis,” he explained. “In total 73 pups were extracted from the 13-foot female and measured and taken back for genealogy research. The pups were also shown to the crowd and many exclamations of ‘OMG so cute’ were heard, which generally are not elicited when talking about sharks.”

ALSO READ: Sharks ideally equipped for long survival

The record number of pups born for sixgill sharks is 116, Mieras said. He didn’t know whether the sixgill shark that washed up on the beach at Coles Bay had already delivered any pups. “It is hard to say (whether) some pups made it out.”

He said according to other shark experts, sepsis and complications during birth is not uncommon. “These sharks develop eggs in the uterus into miniature sharks who are then born live (called aplacental viviparity). So quite an invasive event.”

This isn’t the first time a dead sixgill shark with pups has washed up on a Vancouver Island beach. In 2011 a Port Alberni log salvager discovered the carcass of a 12– to 14–foot sixgill on a beach near the former Coulson Sawmill (now San Group’s sawmill) west of Port Alberni on the Alberni Inlet. Five dead pups slipped out of the shark as it was winched up from the beach.

There are at least a dozen shark species that have been spotted in Barkley Sound.

Common species according to a biologist with Pacific Rim National Park Reserve include blue shark, blunt nosed six gill, broad nosed seven gill, great white shark, salmon shark, spiny dogfish and the tope shark.

Less common are the brown cat shark, and other deep water species such as the; Pacific angel shark, Pacific sleeper shark, short-finned maco shark and thin tailed thresher shark.

Mieras expects necropsy results from the Coles Bay sixgill shark will be released later this week. He plans to create a short video of his experience in the next month and will post it on his YouTube channel, www.youtube.com/user/rendezvousdiving.

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

 

Scientists and observers discovered someone had chopped off the head of a sixgill shark carcass washed up on a north Saanich beach the night before a necropsy was to be performed. PHOTO COURTESY PETER MIERAS

Scientists and observers discovered someone had chopped off the head of a sixgill shark carcass washed up on a north Saanich beach the night before a necropsy was to be performed. PHOTO COURTESY PETER MIERAS

More than 70 unborn shark pups were discovered in the womb of a sixgill shark that washed up on a beach in Coles Bay in early February. Sixgill sharks can give birth to upwards of 100 live pups. PHOTO COURTESY PETER MIERAS

More than 70 unborn shark pups were discovered in the womb of a sixgill shark that washed up on a beach in Coles Bay in early February. Sixgill sharks can give birth to upwards of 100 live pups. PHOTO COURTESY PETER MIERAS

Just Posted

A boat caught fire in Ladysmith Harbour on Saturday morning. (Photo submitted)
Missing woman’s remains recovered from Ladysmith harbour

The remains of a 60 year old woman were recovered after a boat fire took her life on Feb. 27

Ladysmith Secondary School. (File photo)
Ladysmith Secondary reports another COVID-19 exposure

This makes LSS the school with the most exposure days in the Island Health region currently

Plantitude’s ‘Stargazer Bubbles’. (Plantitude photo)
Plantitude offers ‘stargazer bubble’ dining experience

The 10 foot by seven foot bubbles can seat up to six people

It’s been almost a year since the last public performance inside the Chemainus Theatre. (Photo by Don Bodger)
Lead donors pledge $60,000 in matching campaign at the Chemainus Theatre

Perrys, Hiltons and Duncan Iron Works help to Bridge the Gap during COVID shutdown

Doug Routley is the chair of a special committee on reforming the Police Act. (File photo)
Routley selected chair of a special committee on reforming the Police Act

Nanaimo-North Cowichan MLA acknowledges there will be a lot of material to process

Health Minister Adrian Dix looks on as Dr. Bonnie Henry pauses for a moment as she gives her daily media briefing regarding COVID-19 for British Columbia in Victoria, B.C. THE CANADIAN PRESS/Jonathan Hayward
7 additional deaths and 542 new COVID-19 cases in B.C.

Provincial health officials reported 18 new COVID-19 cases linked to variants of concern

Chief Justice Christopher Hinkson (Office of the Chief Justice)
Judge questions whether B.C.’s top doctor appreciated right to religious freedom

Lawyer for province says Dr. Henry has outlined the reasons for her orders publicly

The City of Duncan will implement a new pilot project targeting vandalism this spring. (File photo)
Graffiti trouble? Duncan will give you the brush and the paint to remove it

Intiative based on a successful project to protect Port Alberni from unwanted spray paint

A sample of guns seized at the Pacific Highway border crossing from the U.S. into B.C. in 2014. Guns smuggled from the U.S. are used in criminal activity, often associated with drug gangs. (Canada Border Service Agency)
B.C. moves to seize vehicles transporting illegal firearms

Bill bans sale of imitation or BB guns to young people

BC Housing minister David Eby is concerned that Penticton council’s decision to close a local homeless shelter will result in a “tent city” similar to this one in Everett, Wa. (Olivia Vanni / Black Press file)
‘Disappointed and baffled’ B.C. housing minister warns of tent city in Penticton

Penticton council’s decision to close a local homeless shelter could create tent city, says David Eby

This was the scene outside North Saanich’s Parkland Secondary School after an attempted but unsuccessful break-and-enter into the school torched an ATM inside of it. Sidney/North Saanich RCMP did not make any arrests and currently lack suspects as the investigation continues. Members of the public who may have witnessed something or possess other information can contact police at (250) 656-3931 or to Crimestoppers at 1-800-222-TIPS. (Submitted)
Money to burn: burglars torch North Saanich high school ATM

Police dogs searched the exterior and interior of the school after early morning break-and-enter

The first of Fisheries and Oceans Canada’s long-range maritime patrol aircraft—the Dash-8—becomes operational. (Photo supplied by PAL Aerospace)
Fisheries and Oceans Canada’s new De Havilland Dash-8-100 long-range surveillance air craft is capable of staying aloft for eight to 10 hours for a variety of missions up and down the B.C. coast. (Photo supplied by PAL Aerospace)
New plane will double DFO’s surveillance capacity in B.C.

The Dash-8 will fly out of Campbell River for enforcement, conservation missions

A recently published study out of UBC has found a link between life satisfaction levels and overall health. (Pixabay)
Satisfied with life? It’s likely you’re healthier for it: UBC study

UBC psychologists have found those more satisfied with their life have a 26% reduced risk of dying

A vial of some of the first 500,000 of the two million AstraZeneca COVID-19 vaccine doses that Canada has secured through a deal with the Serum Institute of India in partnership with Verity Pharma at a facility in Milton, Ont., on Wednesday, March 3, 2021. THE CANADIAN PRESS/Carlos Osorio - POOL
Federal panel recommends 4-month gap between COVID vaccine doses due to limited supply

The recommendation applies to all COVID-19 vaccines currently approved in Canada

Most Read