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This article was written by Nancy Russell and originally published by CBC News on August 26, 2024 at 6:00AM ADT. We are sharing the full text here for reference. All rights remain with the original publisher.

‘Hatcheries are going to play a critical role’ in the battle against the disease, says aquaculture adviser

Fishers out on the water at Cascumpec Bay in this file photo. P.E.I.’s oyster industry is different than others that have dealt with MSX disease, in that this province harvests both wild and farmed oysters. (Tom Steepe/CBC)

An oyster hatchery in Bideford, P.E.I., plans to triple its seed production next year so it can respond if demand increases because of the detection of MSX in the province’s waterways.

MSX, or multinuclear sphere X, was first detected in Bedeque Bay on July 11, but it has since been confirmed in several other areas around the province.

While the parasite isn’t dangerous to humans, it can be deadly to oysters and has the potential to severely cut production wherever it takes hold.

“Hatcheries are going to play a critical role. I feel that if the industry has any chance to recover from this relatively quickly, they’re going to need seed and they’re going to need a lot of it,” said Adrian Desbarats, aquaculture business development advisor with Ulnooweg, a not-for-profit that supports Indigenous fisheries initiatives.

Adrian Desbarats, business development adviser for aquaculture with Ulnooweg, says hatcheries will play an important role in helping the P.E.I. oyster industry deal with MSX. (Nancy Russell/CBC)

“I don’t think that people understand the total number of seed involved. It’s probably in the range of 100 to 200 million seed a year that the industry goes through.

“And if you can’t get that from the wild environment, that has to come from a hatchery.”

The Bideford Shellfish Hatchery is owned and operated by the Lennox Island Development Corporation.

Desbarats said the hatchery would not operate the breeding program to develop the MSX-resistant seed, but it would be a supplier. He would prefer to see the P.E.I. government run the program.

Dawn Campbell-Sapier, acting manager of the Bideford Shellfish Hatchery, looks at some of the equipment used to produce oyster seed. (Nancy Russell/CBC)

“The breeding program could then get those MSX-resistant brood stock out to hatcheries, and then the hatcheries would be responsible for spawning those brood stock and getting that MSX-resistant seed out to industry,” he said.

Desbarats said the consensus from experts at a recent conference on MSX is that it will probably take three generations to develop the disease-resistant seed. With roughly two years per generation, that means a six-year process.

The Bideford hatchery produced 10 million seed last year, but Desbarats said it has the capacity for 30 to 45 million per year — and could expand even more.

“That’s always a a difficult call to make,” he said. “I think what we’ll probably do this year is we’ll shoot for at least 30 million for sure. We’ll typically start getting calls around this time of year into the fall and that will help to guide us.”

Desbarats views hatchery production of seed as a way to support the industry, not just through MSX but through other challenges that might lie ahead.

“The reality is that diseases are coming. We have climate change breathing down our necks as well. We have a lot of potential threats to the industry,” Desbarats said.

“There are some industry members more than others maybe who recognize that, and appreciate the value that hatchery seed brings to be able to stabilize and act as a stopgap to those potential threats.”

Production at the Bideford hatchery will start in the fall, with spawning happening in February. Desbarats said they hope to have a better idea then of the potential demand by that time.

Bob MacLeod, president of the P.E.I. Shellfish Association, represents wild oyster harvesters who primarily use wild seed.

That’s likely to change, he said.

“Hatcheries [are] definitely going to be the way to go for a little while anyway until we can rebuild the wild population and hopefully get back to wild seed again,” MacLeod said.

The hatchery produced 10 million seed last year, but has the capacity for 30 to 45 million per year in two runs, and could expand even more. (Nancy Russell/CBC)

He would like to see a major effort put into research and development of MSX-resistant seed at universities around the region.

“If they work on it and share the information together, they’ll probably build resistance a lot quicker than just [having] one outfit doing it,” he said.

“It’s going to be a collaborative joint effort … and hopefully they’ll share their information, the biologists and scientists, that can move us forward up here.”

MacLeod would like to see the federal and provincial governments fund the research, and build more hatcheries on the Island.

The Cascumpec Bay Oyster Co. has used a mix of wild and hatchery seed for several years. (Cascumpec Bay Oyster Co./Facebook)

Monique Horne is with the Cascumpec Bay Oyster Co., which has used a mix of wild and hatchery seed for several years.

Horne said there is a learning curve with hatchery seed, so it would be a good idea for growers to start using both.

She’s happy to hear the Bideford hatchery is looking to ramp up production in future years.

“That would be great if they can increase their capacity,” Horne said. “We will need that from now on. MSX is here to stay, they tell us.”

Source: CBC News. Original article available here.