Saving Seafood

West Coast Dungeness Crab Stable or Increasing Even With Intensive Harvest, Research Shows

March 5, 2020 — The following was released by NOAA Fisheries:

The West Coast Dungeness crab fishery doesn’t just support the most valuable annual harvest of seafood on the West Coast. It’s a fishery that just keeps on giving.

Fishermen from California to Washington caught almost all the available legal-size male Dungeness crab each year in the last few decades. However, the crab population has either remained stable or continued to increase, according to the first thorough population estimate of the West Coast Dungeness stocks.

“The catches and abundance in Central California especially are increasing, which is pretty remarkable to see year after year,” said Kate Richerson, a research scientist at NOAA Fisheries’ Northwest Fisheries Science Center in Seattle. Richerson is the lead author of the new study published in the journal Fisheries Research. “There’s reason to be optimistic that this fishery will continue to be one of the most productive and on the West Coast.”

Other recent research has suggested that the West Coast’s signature shellfish could suffer in the future from ocean acidification and other effects related to climate change. That remains a concern, Richerson said, but the study did not detect obvious signs of population-level impacts yet.

Read the full release here

ALASKA: Researchers work on better model for impact of fishery closures

November 21, 2018 — Fisheries managers are faced with a firestorm every time they decide to close a fishery because of poor returns or low population numbers. A new economic model is trying to help them see into the future to understand the effects of a closure before it happens.

Researchers from the National Oceanic and Atmospheric Administration and the University of Washington worked together on the model, finished in 2017 and published in the journal Marine Policy this past September.

It takes into account items like fishery participation, the amount of each vessel’s annual revenue that comes from the affected fishery, which vessels participate in other fisheries and the value of the fishery; the aim is to calculate the total impact when managers have to limit or close a fishery.

The origin of the idea came after a disastrous broad closure in salmon fishing on the West Coast in 2008. The closure, caused by poor salmon returns correlated to unfavorable ocean conditions, resulted in a federal disaster declaration and a $170 million relief distribution.

Had officials and fishery managers been able to estimate the impact better, relief funds might have been distributed sooner, said Kate Richerson, a marine ecologist with NOAA’s Northwest Fisheries Science Center and the lead author of the study.

Read the full story at the Alaska Journal of Commerce

 

New study reveals cost of 2017 salmon fisheries closure

May 7, 2018 — The following was released by NOAA Fisheries:

Last year’s closure of the commercial ocean salmon troll fishery off the West Coast is estimated to have cost $5.8 million to $8.9 million in lost income for fishermen, with the loss of 200 to 330 jobs, according to a new model that determines the cost of fisheries closures based on the choices fishermen make.

Scientists hope the model, described for the first time this week in Marine Policy, will help policy makers anticipate the economic toll of fisheries closures. Such foresight may be especially useful as conditions in the California Current off the West Coast grow increasingly variable, leading to more potential closures, said lead author Kate Richerson, a marine ecologist with NOAA Fisheries’ Northwest Fisheries Science Center and the University of Washington.

“We’re probably only going to see more of these closures in the future,” she said, “so being able to predict their effects and fallout for coastal communities puts us ahead of the curve in terms of considering those impacts in planning and management decisions.”

The new model estimates the future losses associated with fisheries closures based on the way fishermen reacted to previous closures. It anticipates, for instance, that many fishermen will simply quit fishing rather than shift their efforts to another fishery instead. In this way, the model accounts for the difficulty fishermen face in entering other fisheries with limited permits, Richerson said.

The research is the first attempt to predict the effect of fisheries closures before they happen, said Dan Holland, an economist at the Northwest Fisheries Science Center and coauthor of the study. The model, developed prior to the 2017 closure, also can help identify the most affected communities.

For example, Coos Bay and Brookings, Oregon, and Eureka, California, were among the hardest hit by the 2017 salmon closures because they are geographically located in the center of the closure that stretched from Northern California to Oregon. The closure led to the estimated loss of about 50 percent of fisheries-related employment in Coos Bay and about 35 percent declines in fishing-related income and sales. Predicted percentage declines in overall fishing-related income are lower than declines in salmon income, since many fishermen were predicted to continue to participate in other fisheries.

The study estimated that the closure led to a loss of $12.8 million to $19.6 million in sales. Richerson noted that the model estimates only the economic consequences of the closure to the commercial ocean salmon fishery and does not include the toll on recreational fisheries or in-river fisheries, which would make the total losses even higher.

The closure recommended by the Pacific Fishery Management Council and adopted by NOAA Fisheries was designed to protect low returns of salmon to the Klamath River in Northern California.

Learn more about NOAA Fisheries’ Northwest Fisheries Science Center here.

 

New model looks to predict economic impacts of fishing closures

April 12, 2018 — Getting ahead of the economic impacts that tend to accompany fisheries’ closures is the basis of a new predictive model put together by a team of scientists from NOAA’s Northwest Fisheries Science Center (NFSC) and the University of Washington.

When fisheries shut down, entire communities suffer, the scientific team recognized, and oftentimes, funds doled out to help fishermen weathering rough patches arrive months after they are needed. The new predictive model, which was published recently in the journal Marine Policy, is designed to help mitigate some of this damage, explained Kate Richerson, a marine ecologist at NFSC and the University of Washington, and the lead author of the model.

To develop their predictive standard, Richerson and her team focused on the 2017 closure of the U.S. West Coast’s salmon troll fishery, collating fish ticket data as a starting point.

“We looked at a pretty broad cohort of vessels and found that some of these vessels are almost entirely dependent on salmon, while others are almost entirely dependent on other fisheries,” Richerson said. “Then we looked at their predicted behavior and revenue under the conditions of a closure and under the conditions of an average year. And we used that in combination with this economic input-output model, which links fishing revenue to jobs and sales, to make a sort of back-of-the-envelope prediction of what the impacts of the 2017 closure might have been.”

They estimated the closure, leveled to protect struggling Chinook runs on the Klamath River, would cost trollers anywhere from USD 5.8 million (EUR 4.6 million) to USD 8.9 million (EUR 7.2 million), along with 200 to 330 jobs and USD 12.8 million (EUR 10.3 million) to USD 19.6 million (EUR 15.8 million) in sales. The numbers were confined to trollers, and would have likely been far higher with the inclusion of other fisheries, such as gillnetting and recreational fishing.

Read the full story at Seafood Source