Innovations reduce catch of unintended fish at sea
![A Foulweather Trawl net hangs in Newport, Ore. These nets are a response to federal rules limiting the amount of unintended catch fishermen can haul in. (Associated Press)](https://thumb.spokesman.com/KSCzxxmhXtoU2reLMtp3_GEeH-k=/400x0/media.spokesman.com/photos/2015/01/25/rg25_Trawl_Fishing.jpg)
NEWPORT, Ore. – Sara Skamser has to do a lot less convincing these days.
The owner of Newport’s Foulweather Trawl fishing net company has been a trusted business partner of West Coast trawlers for three decades, but many of them were skeptical when she began developing special nets designed to keep out unwanted species.
They didn’t want to invest thousands of dollars in a new tool with no guarantee that using it wouldn’t also make it harder for their desired catch to stay in the net.
“They’re human – they don’t want to have to try something new that isn’t working perfectly yet,” Skamser said.
New federal rules created to curb overfishing in the West Coast groundfish industry limit the amount of unintended catch that individual fishermen can bring up in their nets, and have turned many of Skamser’s skeptics into customers.
While no official records track how many Oregon fishermen use gear modified to more closely target the types of fish they bring aboard, both fishery managers and trawlers say use of the innovations has skyrocketed since the new rules took effect.
And it’s having a major impact on the sustainability of Oregon’s commercial marine fishing industry. The nets can help fishermen avoid sensitive and overfished species and are an important piece of the effort to rebuild West Coast groundfish – yelloweye and darkblotch rockfish, for example – that in the early 2000s stood on the brink of collapse.
New rules, new ways
In the old days, trawling along the West Coast was a free-for-all.
Seasonal fishing caps and limits on unintended catch were set fisherywide, with no regard for how much any single fisherman was taking. As a result, each season was a race to catch as many pounds as possible before the fishery was maxed out.
Kurt Cochran, a Newport-based fisherman who trawls for “anything that swims,” says in those days, unwanted fish that came up in fishermen’s nets were known as “dinner.”
But starting in 2011, federal regulators switched Oregon, Washington and California groundfish trawlers to the catch-share system, creating a strong financial reason for fishermen to reduce their chances of bringing in unwanted species.
Under the new rules, each fishing outfit is granted a share of the season’s catch – say, 30 tons of hake, out of a 227,000-ton fisherywide limit. Likewise, individual fishermen are limited in the amount of unwanted fish they can bring up in their nets. If they surpass that quota, they could be forced to stop fishing whether or not they have reached their catch limit.
“We use an excluder of some kind or another for every fish we do anymore,” Cochran said.
The push for better sorting tools – excluders – has also created an unlikely partnership between fishermen and scientists from the regulatory agencies that police their harvest.
Mark Lomeli and Waldo Wakefield, two scientists with the Pacific States Marine Fisheries Commission and the National Oceanic and Atmospheric Administration, spend their days listening to fishermen’s worries.
The pair’s experiments offer fishermen information about which tools work best.
Two successes
Two major successes in the past year in the groundfish and shrimp trawl fisheries illustrate the value of the partnership.
In July, Lomeli, Wakefield and scientists from the Oregon Department of Fish and Wildlife tested the effectiveness of LED lights in keeping eulachon smelt out of pink shrimp nets. The tactic was a slam-dunk. Fishermen who dragged the lighted nets saw a 91 percent reduction in the weight of eulachon they brought aboard.
By the end of the season, Lomeli said, “Everyone was using them.”
Part of that is because the lights are only $40 apiece to buy – a small expense, considering that trawl nets run tens of thousands of dollars.
Convincing fishermen to buy into a $21,000 net modified to keep salmon out of hake nets is more difficult. But last fall, a close call in the hake fishery convinced many fishermen the expense was worthwhile.
With the season well underway, the hake fishery was nearly shut down after too many Chinook salmon got caught up in trawlers’ nets.
“We’ve had our share of close calls, and the worry of a shutdown makes it really important to use the excluders,” Cochran said.
Lomeli and Wakefield are still experimenting with strategically placed net lighting that, they believe, could further reduce the number of salmon coming aboard. They’re hoping to finish those studies next year, and have new tools to share with the industry.