Petersburg High School students raise and release pink salmon

PHS aquaculture students release salmon fry into City Creek, about two miles outside of Petersburg. (Photo by Shelby Herbert/KFSK)

School is almost out for winter vacation. But in one Petersburg classroom, a school just started — a school of fish hatched by high schoolers.

Every year, Petersburg High School students vie for the chance to take an aquaculture class, where they learn about fish that sustain the local seafood economy — and they do that by raising and releasing salmon into the wild themselves.  

About a dozen students peeked over the sides of two enormous tanks at Petersburg’s water treatment facility in May. The air was thick with the smell of mud and algae from the pond water gurgling through the tanks — and the odor of fish.

Hundreds of pink salmon fry — just about the size of a child’s finger — darted around the murky water. The teens were tasked with gently catching all of them with tiny nets and plopping them into several five-gallon buckets of water. 

It was a painstaking process, but it only took them about an hour. Some of the fish were dead — or rapidly approaching death.

PHS science teacher Alice Cumps and her aquaculture students inspect salmon fry in their experimental hatchery. (Photo by Shelby Herbert/KFSK)

Once they collected all the fish they had raised over the last year, the students loaded up their buckets onto a school bus. Alice Cumps is a science teacher at Petersburg High School, and she has taught the aquaculture class for close to a decade. She drove the students a short distance to a creek a couple miles out of town. When they arrived, she led them through the thick forest to a shallow eddy.

“Take your buckets and very gently lay it horizontally in the water and let the fish swim out,” Cumps called out. “The wrong way is to just dump in the stream!”

The students began trying to coax the fish out of the buckets and into the stream — which they had explicit permission from the local Alaska Department of Fish and Game office to do. But while they waded through the mud and tried to dodge the devil’s club crowding the creek, some of them were struggling with the task at hand. 

Despite their objections, it’s a massively popular class. Cumps said a lot of kids compete for spots in her aquaculture course every year. 

“Unfortunately, I’m restricted in keeping my [class] number down to 14,” Cumps said. “But yeah, I’ve got a lot of kids that want to take it because it is so hands-on.”

But Cumps said the class isn’t just about field trips and messy fun outside. It’s preparing them for the real deal — careers in the fishing industry after graduation. Through the high school’s partnership with the University of Alaska Southeast, students can earn technical education credits for the class, alongside standard high school credits. 

“It’s a great class for kids that might be thinking about doing this as a career,” Cumps said. “And the idea really is that students might decide to go to a technical school, preferably in the state of Alaska, and continue their education and then they could work at a hatchery.”

In addition to learning about biology, the class is helping state fish biologists learn more about the health and genetics of the fish in the area. 

“They always ask us, at the same time, to collect samples, so we collect ovarian fluid and kidney samples from the salmon,” said Cumps. “We send that to the state up in Juneau. They have a pathology lab, and they run some tests so that they have an idea of what bacteria might be prevalent in the population in the wild run.”

Even after almost a decade of teaching, Cumps said the class is still very dear to her. And part of that is because it’s so intertwined with the local culture. 

“I really like it because it involves so much of what Petersburg is about,” Cumps said. “The borough has such a rich history and economy based on fisheries.”

Aquaculture students climb down a forested hill to City Creek with buckets of pink salmon fry. (Photo by Shelby Herbert/KFSK)

Charlotte Martin is a senior this year at Petersburg High School. Last spring at the creek, she said she wasn’t sure about what she’ll do when she graduates. But she’s enjoyed the hands-on learning experience in Cumps’ outdoor classroom. Martin said it was rewarding to see the pinks transition through their earliest stages of life, but it’s hard not to get a little attached. 

“They’re really cute,” said Martin. “I mean, yeah, we saw them when they were eggs till now, so we’re kind of attached to them. I guess I’m happy for them.”

A new crop of pink salmon hatched last month in Cumps’ classroom. The tiny fish are still attached to bright orange yolk sacs, which they’ll absorb over the next couple months. In this second stage of life, they’re called “alevin.”

“Today was our first day actually that we found some that have hatched, so we have a few little alevin,” Cumps said. “The kids are excited!”

The pinks will be ready for release in late spring. That’s right around the time Charlotte Martin and her cohort will graduate high school, and start their own journey into the great, wide world.

fish fry
Buckets of pink salmon fry, which were hatched and raised by PHS aquaculture students. (Photo by Shelby Herbert/KFSK)
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